From nobody Mon Oct 14 01:26:57 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XRfkm18tfz5YtDt; Mon, 14 Oct 2024 01:28:32 +0000 (UTC) (envelope-from kpn@neutralgood.org) Received: from gunsight1.NeutralGood.ORG (gunsight1.neutralgood.org [206.196.19.100]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "gunsight1.neutralgood.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XRfkk45C9z48Bl; Mon, 14 Oct 2024 01:28:30 +0000 (UTC) (envelope-from kpn@neutralgood.org) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of kpn@neutralgood.org designates 206.196.19.100 as permitted sender) smtp.mailfrom=kpn@neutralgood.org; dmarc=none Received: from gunsight1.NeutralGood.ORG (localhost [127.0.0.1]) by gunsight1.NeutralGood.ORG (8.18.1/8.18.1) with ESMTPS id 49E1Qw6E012674 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Sun, 13 Oct 2024 21:26:58 -0400 (EDT) (envelope-from kpn@gunsight1.NeutralGood.ORG) Received: (from kpn@localhost) by gunsight1.NeutralGood.ORG (8.18.1/8.18.1/Submit) id 49E1QvmB012671; Sun, 13 Oct 2024 21:26:57 -0400 (EDT) (envelope-from kpn) Date: Sun, 13 Oct 2024 21:26:57 -0400 From: "Kevin P. Neal" To: "Gavin D. Howard" Cc: freebsd-arch@freebsd.org, freebsd-hackers@freebsd.org, freebsd-net@freebsd.org, tcpdump-workers@lists.tcpdump.org, tech-net@netbsd.org, Alexander Nasonov Subject: Re: BPF64: proposal of platform-independent hardware-friendly backwards-compatible eBPF alternative Message-ID: References: <20240910040544.125245ad@nuclight.lan> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-No-archive: Yes X-Spamd-Result: default: False [-3.30 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; MID_RHS_MATCH_FROM(0.00)[]; ARC_NA(0.00)[]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:13649, ipnet:206.196.0.0/19, country:US]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_SEVEN(0.00)[7]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org,freebsd-net@freebsd.org,freebsd-arch@freebsd.org]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DMARC_NA(0.00)[neutralgood.org]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[] X-Rspamd-Queue-Id: 4XRfkk45C9z48Bl X-Spamd-Bar: --- On Tue, Sep 10, 2024 at 02:41:20PM +0000, Gavin D. Howard wrote: > But the good thing about this is that FreeBSD could use LLVM IR as the > BPF64 language, which means any language that compiles to LLVM is a > possible target. Please don't do this. The LLVM IR language is a moving target. IR that works in one version is not guaranteed to work in prior versions. There is an upgrade step where it tries to read in older IR, but writing out older IR is a problem. It can be solved, I think the DirectX LLVM backend ("DXIL") does this, but I still suggest you not do this. > As for restricting access, I think it would be possible to check the > instructions in LLVM IR for any unsafe instructions or calls to > restricted functions. > > The downsides: > > * Someone would need to write an LLVM analyze pass or whatever they're > called. Maybe more than one. Close. "Analysis pass". > * The kernel would need the ability to compile LLVM IR, making LLVM part > of the Ring 0 domain. > * Either that, or someone builds an LLVM-to-bytecode translator. > * But the analysis pass(es) must still live in the kernel. LLVM is huge. Really huge. A codebase that large has no business being in the kernel. -- Kevin P. Neal http://www.pobox.com/~kpn/ "14. Re-reading No. 13, I realize that it's quite possible I'm losing my mind. I'm glad that for the most part I'm not aware it's happening." -- from "20 things I'm thankful for": Fortune, Nov 29, 2004, page 230 From nobody Mon Oct 14 02:49:12 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XRhWw6W9bz5YyhT; Mon, 14 Oct 2024 02:49:16 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from omta002.cacentral1.a.cloudfilter.net (omta002.cacentral1.a.cloudfilter.net [3.97.99.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XRhWw4GfXz4GST; Mon, 14 Oct 2024 02:49:16 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Authentication-Results: mx1.freebsd.org; none Received: from shw-obgw-4003a.ext.cloudfilter.net ([10.228.9.183]) by cmsmtp with ESMTPS id 02CZtIt6LMArN0B91ti6vC; Mon, 14 Oct 2024 02:49:15 +0000 Received: from spqr.komquats.com ([70.66.152.170]) by cmsmtp with ESMTPSA id 0B8ztkM9EE0IV0B90traIM; Mon, 14 Oct 2024 02:49:15 +0000 X-Auth-User: cschuber X-Authority-Analysis: v=2.4 cv=cI9DsUeN c=1 sm=1 tr=0 ts=670c86ab a=y8EK/9tc/U6QY+pUhnbtgQ==:117 a=y8EK/9tc/U6QY+pUhnbtgQ==:17 a=kj9zAlcOel0A:10 a=DAUX931o1VcA:10 a=4yi-b2ezAAAA:8 a=YxBL1-UpAAAA:8 a=6I5d2MoRAAAA:8 a=EkcXrb_YAAAA:8 a=GoqGsIDvfXODEf7dVFkA:9 a=CjuIK1q_8ugA:10 a=TQxA5NB98t1WezocIkIN:22 a=Ia-lj3WSrqcvXOmTRaiG:22 a=LK5xJRSDVpKd5WXXoEvA:22 Received: from slippy.cwsent.com (slippy [10.1.1.91]) by spqr.komquats.com (Postfix) with ESMTP id E626B376; Sun, 13 Oct 2024 19:49:12 -0700 (PDT) Received: by slippy.cwsent.com (Postfix, from userid 1000) id B82FD289; Sun, 13 Oct 2024 19:49:12 -0700 (PDT) X-Mailer: exmh version 2.9.0 11/07/2018 with nmh-1.8+dev Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: "Kevin P. Neal" cc: "Gavin D. Howard" , freebsd-arch@freebsd.org, freebsd-hackers@freebsd.org, freebsd-net@freebsd.org, tcpdump-workers@lists.tcpdump.org, tech-net@netbsd.org, Alexander Nasonov Subject: Re: BPF64: proposal of platform-independent hardware-friendly backwards-compatible eBPF alternative In-reply-to: References: <20240910040544.125245ad@nuclight.lan> Comments: In-reply-to "Kevin P. Neal" message dated "Sun, 13 Oct 2024 21:26:57 -0400." List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 13 Oct 2024 19:49:12 -0700 Message-Id: <20241014024912.B82FD289@slippy.cwsent.com> X-CMAE-Envelope: MS4xfP3R1d8d+xMuFawVIUw/ZdwQE6f2+Yq4QZy6QrXvMCDMFOosgfZi6gjWHVKJEl+fAXsZ6m+t4w19e2zicnFc0ugKVAn7V6ut9FaCvjRI32VZdCNAY4jH 3akqkZ4M1Gv306NKOB3RirzwN3RFMGgdYpjb2pqTA3r3PLrEWDyKUMlPGdSgcTLDRHpcuNtBTaY43cUAURWDRTM+H8VdCThyc7wpaZTkcDD0jPW/pDP+Kc3V dfnkzC5YKUonnUCgRnnAFyfZAuIy8uUK1El4dVxuCjOf1UA1tz5IZUW97LNVlnd2UtMcZAZSbsEiJauqYTXtCtV3L5mQjjOAue0SCMhOH9btyY6XEfmxbKbJ XDOKF8ssvIjBrDs7uuyiDi9+adI6yfa5TSfzkuuSsSq0a5yAxuOWufDABU9DvlrIw/S5Qhj5d+VMI/1Tlz78Sc+Oed5sLWjBanyI+vtkklLrGopF7dk= X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:16509, ipnet:3.96.0.0/15, country:US] X-Rspamd-Queue-Id: 4XRhWw4GfXz4GST X-Spamd-Bar: ---- In message , "Kevin P. Neal" writes: > On Tue, Sep 10, 2024 at 02:41:20PM +0000, Gavin D. Howard wrote: > > But the good thing about this is that FreeBSD could use LLVM IR as the > > BPF64 language, which means any language that compiles to LLVM is a > > possible target. > > Please don't do this. > > The LLVM IR language is a moving target. IR that works in one version is > not guaranteed to work in prior versions. There is an upgrade step where > it tries to read in older IR, but writing out older IR is a problem. It > can be solved, I think the DirectX LLVM backend ("DXIL") does this, but I > still suggest you not do this. > > > As for restricting access, I think it would be possible to check the > > instructions in LLVM IR for any unsafe instructions or calls to > > restricted functions. > > > > The downsides: > > > > * Someone would need to write an LLVM analyze pass or whatever they're > > called. Maybe more than one. > > Close. "Analysis pass". > > > * The kernel would need the ability to compile LLVM IR, making LLVM part > > of the Ring 0 domain. > > * Either that, or someone builds an LLVM-to-bytecode translator. > > * But the analysis pass(es) must still live in the kernel. > > LLVM is huge. Really huge. A codebase that large has no business being in > the kernel. An interpreter in the kernel. What could possibly go wrong with that? -- Cheers, Cy Schubert FreeBSD UNIX: Web: https://FreeBSD.org NTP: Web: https://nwtime.org e^(i*pi)+1=0 From nobody Mon Oct 14 07:33:33 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XRprB3hxfz5ZM55; Mon, 14 Oct 2024 07:33:46 +0000 (UTC) (envelope-from theraven@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XRprB2nZZz4Vsk; Mon, 14 Oct 2024 07:33:46 +0000 (UTC) (envelope-from theraven@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728891226; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iE2Bc2+JYMr/3dORZ1efguwqLVktYNwYS4KXYTtfwwM=; b=VF3ZJH8+9cwzDhZUbQeENfdhz8Xt/Izp/ysfooQXV03xvHipWxP5Pq5mtdZie0FQLZwGHM 7hOzUSk8TApb1GVzXMkFakidosRlhx9+EoQd2Qj+j1OxN1yH6anaGL73S/GF/fiOHjsFhh fjYpXtqaAyU5/UgxHg96bQqhgNQD3a3mSbbXGwtlL8yt/vl+kfJRzFQebju5AfWETszKIf s8z2KGknVfA9Z/ZuV4jjahyz+QainmK1iJo8e0/GmeYLmKgnITunoHysK9aWxGLCoK0Csf MEjzvJ85t4ToblNAXSAYe02JKbeXT+eZ37kS7M6cH5vLgs6WJ8c73Icb4RPTlg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728891226; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iE2Bc2+JYMr/3dORZ1efguwqLVktYNwYS4KXYTtfwwM=; b=T7eHvqFdOj71cIk5ZhZIcKxHFQBB5ioG5hZAHiHATNVMo1MxYtNbvKR7Kfy/Mc+w0DNANg TKgSsmssrvV7XL38UxBqqjo4RFMmmO4BtfITC5AjHTq0nVS8AeiunX3PUd7jFZ6z4DB9Fl lSvlN7pVINu/RTXp3FjK7dnfVgV75mOEZMAgwX/SOFT+146rQ9qcto0GX86iTs8IR8MFuJ zfrSJLS2XHQUB+SkNVyvtlAFL76tecZpihSqymd2r/AooX/lDc1eXklJ+1cryryxntuyUj VczHWE0M6Lk0Z3OZWEm4xKcp/S0EGJfJoTBsInjNoAgKGVCwQEzkeNTq5JZWpQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1728891226; a=rsa-sha256; cv=none; b=Hkw8TL6rb1pfupmEF54I03Bxdquyc8+xCKH3OYd93rveNRXd48uOfnppnxl3zGO24dmctb Ig8yAupIFTslhKvlojqBYvmazbdVlYNV14n8TDuH5gPXmMogBlgfTM9FdTVXiiaceLd5+p zxrrFQidVvaz61CHu71q6YEv6XRfpHOJ/kuumXu3IAdYVgwYIpjYlnpckjDjvze/iv3iJp tafDz6q7ddHLUag1OtK/Xgf7hEws9z7/Z397VZIoRDuvBZGsaVQxLHGUjS0Kkh5T2HkdPW QY0t5EVfAkvKdmcFUYrRgilZ/2zqanhk6YrqvKbwl4NkCPqsIScNU3b2lGzULA== Received: from smtp.theravensnest.org (smtp.theravensnest.org [45.77.103.195]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: theraven) by smtp.freebsd.org (Postfix) with ESMTPSA id 4XRprB2DRzz1Hwv; Mon, 14 Oct 2024 07:33:46 +0000 (UTC) (envelope-from theraven@freebsd.org) Received: from smtpclient.apple (host81-141-222-158.range81-141.btcentralplus.com [81.141.222.158]) by smtp.theravensnest.org (Postfix) with ESMTPSA id 80E338F37; Mon, 14 Oct 2024 08:33:45 +0100 (BST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: David Chisnall List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 (1.0) Subject: Re: BPF64: proposal of platform-independent hardware-friendly backwards-compatible eBPF alternative Date: Mon, 14 Oct 2024 08:33:33 +0100 Message-Id: <1FFE8A39-0061-4749-B9AD-65BE31CABAE0@freebsd.org> References: <20241014024912.B82FD289@slippy.cwsent.com> Cc: "Kevin P. Neal" , "Gavin D. Howard" , freebsd-arch@freebsd.org, freebsd-hackers@freebsd.org, freebsd-net@freebsd.org, tcpdump-workers@lists.tcpdump.org, tech-net@netbsd.org, Alexander Nasonov In-Reply-To: <20241014024912.B82FD289@slippy.cwsent.com> To: Cy Schubert X-Mailer: iPad Mail (21G93) > On 14 Oct 2024, at 03:49, Cy Schubert wrote: >=20 >> It >> can be solved, I think the DirectX LLVM backend ("DXIL") does this, but I= >> still suggest you not do this. NaCl and SPIR made this mistake first. WebAssembly and SPIR-V learned the le= sson. >> LLVM is huge. Really huge. A codebase that large has no business being in= >> the kernel. Many years ago, I wrote a proof of concept BPF to LLVM IR compiler. The idea= was that a trusted userspace component could do the BPF compilation and loa= d binary code into the kernel. BPF would still be BPF and so have the same g= uarantees, but compiling it would be faster (on average, each BPF bytecode w= as slightly more than one x86 instruction after LLVM optimisations had run).= LLVM was still in the TCB though, even in userspace. I didn=E2=80=99t perus= e it because LLVM is *not* safe in the presence of untrusted inputs. More generally, the LLVM IR model is similar to C. It allows arbitrary point= er casts and arbitrary pointer arithmetic. It is not a good starting point f= or anything that you want to analyse for security. LLVM analyses take advant= age of undefined behaviour. An in-bounds address calculation instruction is a= n assertion from the front end that the result will be in bounds. Optimisati= ons are free to rely on this, even when they can=E2=80=99t prove it, because= it is undefined behaviour to claim something is in bounds when it is not. T= he same is true of a lot of other properties on the IR. Many are not computa= ble to recover post facto, they rely on translation from a higher-level lang= uage that enforces the properties by construction. David From nobody Mon Oct 14 11:47:27 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XRwSz0CgHz5YRRk for ; Mon, 14 Oct 2024 11:47:31 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fout-a3-smtp.messagingengine.com (fout-a3-smtp.messagingengine.com [103.168.172.146]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XRwSx6J4gz41Z6 for ; Mon, 14 Oct 2024 11:47:29 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=Fc9Wtcfh; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=giIK6NKu; spf=pass (mx1.freebsd.org: domain of void@f-m.fm designates 103.168.172.146 as permitted sender) smtp.mailfrom=void@f-m.fm; 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Mon, 14 Oct 2024 07:47:28 -0400 (EDT) Date: Mon, 14 Oct 2024 12:47:27 +0100 From: void To: freebsd-hackers@freebsd.org Subject: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline X-Spamd-Result: default: False [-3.58 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.98)[-0.980]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:103.168.172.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[103.168.172.146:from]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:151847, ipnet:103.168.172.0/24, country:AU]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4XRwSx6J4gz41Z6 X-Spamd-Bar: --- I dimly remember a HZ setting, maybe kernel config option? From years ago. I can't find it in recent /sys/amd64/conf/* Does this functionality still exist or has it moved elsewhere? Or did it ever exist? I am seeing slow network throughput speeds in virtio-net relative to linux vms on the same host and thought maybe it had something to do with polling too fast. -- From nobody Mon Oct 14 15:01:17 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XS0mt338pz5Yh9D for ; Mon, 14 Oct 2024 15:01:34 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XS0ms5XQBz4Mfd for ; Mon, 14 Oct 2024 15:01:33 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49EF1HB5075035; Tue, 15 Oct 2024 00:01:18 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1728918079; bh=s3V1+6HXtgUlXA9QMOBJk0K9Ny21G8ZsDu/n8Ng6OX8=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=Ed3fkJZ95MttErmqhea3UA2WC83BvyoEtP5CeCT5oaNyOrdERbHKZ25cqnASvAzVZ yJREfsN8BHUmfDbad/8E6iqfZSWWNW1eWrLxFWkEuiSuSUGR+EDQR1C7nU49T8lwoV 1wo/AKc3tp7MoUKBJG4gjILmb2AmsGruAOuVorWA= Date: Tue, 15 Oct 2024 00:01:17 +0900 From: Tomoaki AOKI To: void Cc: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-Id: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> In-Reply-To: References: Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XS0ms5XQBz4Mfd X-Spamd-Bar: ---- On Mon, 14 Oct 2024 12:47:27 +0100 void wrote: > I dimly remember a HZ setting, maybe kernel config option? > From years ago. I can't find it in recent /sys/amd64/conf/* > Does this functionality still exist or has it moved elsewhere? > Or did it ever exist? > > I am seeing slow network throughput speeds in virtio-net relative to linux vms > on the same host and thought maybe it had something to do with polling too fast. > -- Tunable kern.hz? Or something else? -- Tomoaki AOKI From nobody Mon Oct 14 15:04:18 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XS0r45L6Kz5YhZc for ; Mon, 14 Oct 2024 15:04:20 +0000 (UTC) (envelope-from des@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XS0r44phCz4NhK for ; Mon, 14 Oct 2024 15:04:20 +0000 (UTC) (envelope-from des@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728918260; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=r8de3htg9FKq+AZEcoowI3o9a9dwpI4O+/luP8lv1Vc=; b=fKkIAhgwkpptnWavBc+lsf7Sr99zMpYsRlGRWKKwBE/b9gmxgQ7lgNelXHbL9HEzmcQHHo SBwtrqHgA0EFaQWkLlnTJiAX9Dp2PbFbIY4Wg2qCezcxnP24nYkGT52ix5uVZYXtLjWEOT szxrdfOdmZvEAMpw1ZomPGcd1d+c0uVTGtw/T7I2tuCTaeY5Auiihu7rnqol4WarykcQLl BfqzveugLPClEdnsl3qqw1PRBhmgunrm80Bpwk3mpCnxLaYt2Jn1FTCKiQtGSvyvw+LpuW wJiGTP43AmdIHml9UQ307hqGag1VA9yMALpblnjwsjROwjlX9tSmAnVY5aU8ig== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728918260; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=r8de3htg9FKq+AZEcoowI3o9a9dwpI4O+/luP8lv1Vc=; b=Q3Y8b9Z5MprxBIRI1kGwnmSH3mMxMFcRhr5ZH5NQy6GUSamRz7UjU0fv3JECjRDBiQlk7i nYI4wGRImIphP66lAVbWuJBMNsQpru/pBScNaVZA7lbyMl7zaRJ7MvlWsyfFhtmlHxpz57 5lXdKgUf6WJK8j7PgDnyyME2MdZaaFiKlIajpqBnn+rg95ZtI2IEHSZyxnaNmKRq+Z4Rnr V0SrTK7WLoOoqLXdDm2DVA7s8ft2lek0mXV8+bDtkiRHH6W13V0AXuZRcYTXiKB1DiTbS5 +1oVfVfA/pIyS/Q9BXaogHXeZWmwOBhrDWoG/X/C/UaSz+9Lo6h77zjMO9kSJA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1728918260; a=rsa-sha256; cv=none; b=Ei2WebsXlAyS2vYzDvBqFDRwIpCSHuW18h/ZXoWlr9U5P/wWvxniJTZPAY6jDzsEqoIQ1w kVCQv6ZVgIIQezNHFe18mhkNFvufUMEn9Kaz9k9DzWRZOAZ3OIPF+wyYNI151FRJa9JTyV Hct71xcqTPU0agwOZRjoZdMCekEOmYdUELRf9Tc+Iu8OLNVdPM8j5oZSMLUlexDpj1CSFq 4qq5fVe1L0xcpUsbdcGAs9nxqFisr+brYfPraARqvlKwJJqGGvkCssELClK6lc3lRC01/v uMTHrxAi6c79aLc95WHR/HQckmo88lxvY6ocQTJXnxJo3UWZL7MAoAEftgIN0Q== Received: from ltc.des.dev (unknown [IPv6:2a01:e0a:386:9c20:922e:16ff:fef1:acef]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: des) by smtp.freebsd.org (Postfix) with ESMTPSA id 4XS0r43kVNz1SPr for ; Mon, 14 Oct 2024 15:04:20 +0000 (UTC) (envelope-from des@freebsd.org) Received: by ltc.des.dev (Postfix, from userid 1001) id C039ABF62C; Mon, 14 Oct 2024 17:04:18 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: freebsd-hackers@freebsd.org Subject: Re: polling interval In-Reply-To: (void@f-m.fm's message of "Mon, 14 Oct 2024 12:47:27 +0100") References: User-Agent: Gnus/5.13 (Gnus v5.13) Date: Mon, 14 Oct 2024 17:04:18 +0200 Message-ID: <86zfn6u3nx.fsf@ltc.des.dev> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable void writes: > I dimly remember a HZ setting, maybe kernel config option? > From years ago. I can't find it in recent /sys/amd64/conf/* Look in sys/conf/NOTES. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org From nobody Mon Oct 14 17:34:34 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XS49T5cF7z5Yt66 for ; Mon, 14 Oct 2024 17:34:37 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fout-a6-smtp.messagingengine.com (fout-a6-smtp.messagingengine.com [103.168.172.149]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XS49T1527z4fMk for ; Mon, 14 Oct 2024 17:34:37 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=ow5vHKhV; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=LWCDj5C3; spf=pass (mx1.freebsd.org: domain of void@f-m.fm designates 103.168.172.149 as permitted sender) smtp.mailfrom=void@f-m.fm; 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Mon, 14 Oct 2024 13:34:35 -0400 (EDT) Date: Mon, 14 Oct 2024 18:34:34 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> X-Spamd-Result: default: False [-1.75 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_SPAM_SHORT(0.85)[0.850]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_SPF_ALLOW(-0.20)[+ip4:103.168.172.128/27]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; RCVD_IN_DNSWL_LOW(-0.10)[103.168.172.149:from]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_COUNT_THREE(0.00)[3]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MISSING_XM_UA(0.00)[]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; ASN(0.00)[asn:151847, ipnet:103.168.172.0/24, country:AU]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4XS49T1527z4fMk X-Spamd-Bar: - On Tue, Oct 15, 2024 at 12:01:17AM +0900, Tomoaki AOKI wrote: >Tunable kern.hz? Or something else? I think that may be it! # sysctl kern.hz kern.hz: 100 # sysctl kern.hz_max kern.hz_max: 137438 -- From nobody Mon Oct 14 17:36:03 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XS4CB425Qz5Yt6N for ; Mon, 14 Oct 2024 17:36:06 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fhigh-a3-smtp.messagingengine.com (fhigh-a3-smtp.messagingengine.com [103.168.172.154]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XS4C94lw1z4fwv for ; Mon, 14 Oct 2024 17:36:05 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=XWcqry1D; dkim=pass header.d=messagingengine.com header.s=fm2 header.b="C gJfskz"; spf=pass (mx1.freebsd.org: domain of void@f-m.fm designates 103.168.172.154 as permitted sender) smtp.mailfrom=void@f-m.fm; 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Mon, 14 Oct 2024 13:36:04 -0400 (EDT) Date: Mon, 14 Oct 2024 18:36:03 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <86zfn6u3nx.fsf@ltc.des.dev> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <86zfn6u3nx.fsf@ltc.des.dev> X-Spamd-Result: default: False [-1.76 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_SPAM_SHORT(0.84)[0.844]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_SPF_ALLOW(-0.20)[+ip4:103.168.172.128/27:c]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; RCVD_IN_DNSWL_LOW(-0.10)[103.168.172.154:from]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_COUNT_THREE(0.00)[3]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MISSING_XM_UA(0.00)[]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; ASN(0.00)[asn:151847, ipnet:103.168.172.0/24, country:AU]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4XS4C94lw1z4fwv X-Spamd-Bar: - On Mon, Oct 14, 2024 at 05:04:18PM +0200, Dag-Erling Smørgrav wrote: >void writes: >> I dimly remember a HZ setting, maybe kernel config option? >> From years ago. I can't find it in recent /sys/amd64/conf/* > >Look in sys/conf/NOTES. not present in n271832-04262ed78d23 (-current) -- From nobody Mon Oct 14 19:32:52 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XS6p709PMz5Z2hD for ; Mon, 14 Oct 2024 19:33:03 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost1.sentex.ca (smarthost1.sentex.ca [IPv6:2607:f3e0:0:1::12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smarthost1.sentex.ca", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XS6p5562nz4sKX for ; Mon, 14 Oct 2024 19:33:01 +0000 (UTC) (envelope-from mike@sentex.net) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of mike@sentex.net designates 2607:f3e0:0:1::12 as permitted sender) smtp.mailfrom=mike@sentex.net; dmarc=none Received: from pyroxene2a.sentex.ca (pyroxene19.sentex.ca [199.212.134.19]) by smarthost1.sentex.ca (8.18.1/8.18.1) with ESMTPS id 49EJWs2v077333 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=FAIL) for ; Mon, 14 Oct 2024 15:32:54 -0400 (EDT) (envelope-from mike@sentex.net) Received: from [IPV6:2607:f3e0:0:4:1114:74c7:d294:89cd] ([IPv6:2607:f3e0:0:4:1114:74c7:d294:89cd]) by pyroxene2a.sentex.ca (8.18.1/8.15.2) with ESMTPS id 49EJWpxq088985 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO) for ; Mon, 14 Oct 2024 15:32:53 -0400 (EDT) (envelope-from mike@sentex.net) Message-ID: <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> Date: Mon, 14 Oct 2024 15:32:52 -0400 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: polling interval To: freebsd-hackers@freebsd.org References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> Content-Language: en-US From: mike tancsa Autocrypt: addr=mike@sentex.net; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.86 X-Spamd-Result: default: False [-1.91 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_SPAM_SHORT(0.48)[0.483]; R_SPF_ALLOW(-0.20)[+ip6:2607:f3e0::/32]; RCVD_IN_DNSWL_LOW(-0.10)[199.212.134.19:received]; MIME_GOOD(-0.10)[text/plain]; XM_UA_NO_VERSION(0.01)[]; MID_RHS_MATCH_FROM(0.00)[]; FREEFALL_USER(0.00)[mike]; ASN(0.00)[asn:11647, ipnet:2607:f3e0::/32, country:CA]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; R_DKIM_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; DMARC_NA(0.00)[sentex.net]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; ARC_NA(0.00)[] X-Rspamd-Queue-Id: 4XS6p5562nz4sKX X-Spamd-Bar: - On 10/14/2024 1:34 PM, void wrote: > On Tue, Oct 15, 2024 at 12:01:17AM +0900, Tomoaki AOKI wrote: > >> Tunable kern.hz? Or something else? > > I think that may be it! > > # sysctl kern.hz > kern.hz: 100 > > # sysctl kern.hz_max > kern.hz_max: 137438 > Did adjusting it make any difference ?     ---Mike From nobody Tue Oct 15 00:03:26 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSDpB213Cz5ZNk1 for ; Tue, 15 Oct 2024 00:03:30 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fout-a2-smtp.messagingengine.com (fout-a2-smtp.messagingengine.com [103.168.172.145]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSDp934YYz487B for ; Tue, 15 Oct 2024 00:03:29 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=OYf4hxmS; 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Mon, 14 Oct 2024 20:03:27 -0400 (EDT) Date: Tue, 15 Oct 2024 01:03:26 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> X-Spamd-Result: default: False [-3.45 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.85)[-0.849]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:103.168.172.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[103.168.172.145:from]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:209242, ipnet:103.168.172.0/24, country:US]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4XSDp934YYz487B X-Spamd-Bar: --- On Mon, Oct 14, 2024 at 03:32:52PM -0400, mike tancsa wrote: >Did adjusting it make any difference ? I set it to maximum, rebooted but the vm wouldnt come up fully lol, so made another one. I'm going to try adjusting it in small increments to see if i can get the virtio-net performance on freebsd guests to be as quick or nearly as quick as linux ones in bhyve. -- From nobody Tue Oct 15 05:20:46 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSMrJ0ZKTz5YKnp for ; Tue, 15 Oct 2024 05:20:48 +0000 (UTC) (envelope-from des@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSMrJ03mmz4k2k for ; Tue, 15 Oct 2024 05:20:48 +0000 (UTC) (envelope-from des@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728969648; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hrtnG61bSkxVyhO3vErZB8CfEB5Rx+kCr60qXN6UQgQ=; b=agRkQ4x9atxGNgy3JoPttzgM1fWEEvlrtyyFIHcbzZVZqUsIlLnB5DM8LfgUdlGCaO/Ew5 3OhzbiOawkufU28wlqzFyTpqaLWunGxrP5sM2RWE5CI4jsQx147lpjNkXjxxfJb8661wWp Sz2XJqLrTqdmpG8b2LsiUxlxXnpUv2wOrJJp+Hjhe9fA4ckFaroTXCDyqrdhCx+dT6HhI6 ZBDFUpMbLu2KtiuN9Md57SMqQ59aKHDmYxiQBFKovbB9sGlGVQfVi52nIw1Fwb7yF9j40t M2T9rfLGcSvABgJuxGCZseyGVvXYk1mIj+sO8LlyUHmPSd5S2CoUKjw+1LebGA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1728969648; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hrtnG61bSkxVyhO3vErZB8CfEB5Rx+kCr60qXN6UQgQ=; b=mHbDnfDXJUcq0XGgpmtiX5ex3nKUA9nHjgYnnV7rGU9L0Zr7e06dOkFtz0wRUXAFCzEpU6 eC2wOpNyOScILhJUYjI/rX8EDsQatzC6t9BqoDKN1Mbm/gVIg96rhKlh05LVI/NUc1Oof2 et7APACi3kzLo1zj1yWRqmYMbhLyT0XZGMGBL1clGf0p+iAgJ7l2tqaEy48RKBIRuE2uj7 yFIzWW8nUT1uVTHXt4rgBJPtpGWWL675WG2DHZ2gu55hPUn/r1Lh014I2b4UpQZKGRBNLS gQhEmYGe4Ktrb5/M3mLIZTo/JuFF2sXPwS1lgH3YQUF/U7e9a5dZwbuwcyzw3Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1728969648; a=rsa-sha256; cv=none; b=nkNi35dPTmPB/LnpLWFvAlCIzT6foeNT1CmaqZmvP0WDRpvXYwNrYHZ530XqoynItzq1A9 L5cmQ24Y3mD1XSp2bYyzAI6thMIiDZgxWoSiYD+geHqlkJskSIyxKIqS5PnnyG9sX10K64 E5iWTogvgMaJv+246sbra4FcAxfWBfkzqXHLQT6hbWBjTWrVNhAR1YbIJwwaKq8miQ2ODj k38m8bzWuUIAD+RzMnDmq5z5uS1Xxcjf3e9yyu3qqyep6cWgNyZkT3Q90J5l8ZAXfzrDnD qO5UevtcqIgtfeOp7pmeDqDy2YePEfl5/iFJe7hvl0yUvVPy1U6y/H3HiJjCsw== Received: from ltc.des.dev (unknown [91.174.26.112]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: des) by smtp.freebsd.org (Postfix) with ESMTPSA id 4XSMrH64fNzVFG for ; Tue, 15 Oct 2024 05:20:47 +0000 (UTC) (envelope-from des@freebsd.org) Received: by ltc.des.dev (Postfix, from userid 1001) id 53019BF84C; Tue, 15 Oct 2024 07:20:46 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: freebsd-hackers@freebsd.org Subject: Re: polling interval In-Reply-To: (void@f-m.fm's message of "Mon, 14 Oct 2024 18:36:03 +0100") References: <86zfn6u3nx.fsf@ltc.des.dev> User-Agent: Gnus/5.13 (Gnus v5.13) Date: Tue, 15 Oct 2024 07:20:46 +0200 Message-ID: <86v7xut00h.fsf@ltc.des.dev> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable void writes: > Dag-Erling Sm=C3=B8rgrav writes: > > void writes: > > > I dimly remember a HZ setting, maybe kernel config option? > > > From years ago. I can't find it in recent /sys/amd64/conf/* > > Look in sys/conf/NOTES. > not present in n271832-04262ed78d23 (-current) https://cgit.freebsd.org/src/tree/sys/conf/NOTES#n1283 DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org From nobody Tue Oct 15 05:57:07 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSNfP1W3Pz5YMtC for ; Tue, 15 Oct 2024 05:57:17 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from gilb.zs64.net (gilb.zs64.net [212.12.50.234]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature ECDSA (P-256) client-digest SHA256) (Client CN "gilb.zs64.net", Issuer "E6" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSNfN61JXz4nvT for ; Tue, 15 Oct 2024 05:57:16 +0000 (UTC) (envelope-from stb@lassitu.de) Authentication-Results: mx1.freebsd.org; none Received: by gilb.zs64.net (Postfix, from stb@lassitu.de) id 33D274E454; Tue, 15 Oct 2024 05:57:00 +0000 (UTC) Content-Type: multipart/signed; boundary="Apple-Mail=_3C199DD2-16FC-4757-B7C7-CD5BCBDF9988"; protocol="application/pgp-signature"; micalg=pgp-sha512 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3818.100.11.1.3\)) Subject: Re: polling interval From: Stefan Bethke In-Reply-To: Date: Tue, 15 Oct 2024 07:57:07 +0200 Cc: freebsd-hackers@freebsd.org Message-Id: References: To: void X-Mailer: Apple Mail (2.3818.100.11.1.3) X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:13135, ipnet:212.12.48.0/21, country:DE] X-Rspamd-Queue-Id: 4XSNfN61JXz4nvT X-Spamd-Bar: ---- --Apple-Mail=_3C199DD2-16FC-4757-B7C7-CD5BCBDF9988 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 14. Oct 2024, at 13:47, void wrote: >=20 > I dimly remember a HZ setting, maybe kernel config option? > =46rom years ago. I can't find it in recent /sys/amd64/conf/* > Does this functionality still exist or has it moved elsewhere? > Or did it ever exist? >=20 > I am seeing slow network throughput speeds in virtio-net relative to = linux vms > on the same host and thought maybe it had something to do with polling = too fast. But it's not the buggy acceleration that virtio-net tries? I've turned = off all offloading on my interfaces, as I was getting strange = connectivity problems when it was enabled. Disabled is the default for = OPNsense and many other appliances. See for example = https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D165059. Stefan --=20 Stefan Bethke Fon +49 175 3288861 --Apple-Mail=_3C199DD2-16FC-4757-B7C7-CD5BCBDF9988 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEEJ+hF98o4r3eU/HiPD885WK4W4sEFAmcOBDMACgkQD885WK4W 4sFlXAf+P1kroWMk/8k9HYNSMU6y/FbllXmMredWugL2xwkw2t5wf2PvXKV2f3y9 SEsvNggPwCA65LyufdLZxc1I10zDEzpAL8czg208KGUWTkE9/Cxas2ppsq2zYUIr RBZwyJm5OrCEjurHAUX72dMIV5B4UytXQ25A/V+JQKtRo0Alwzih7ggHvprrArre CKglbKVF6Enr3d7gPh6t/bAKywLhARTMGAFjfXwTXIgrMW1yGk9zoDdU9vV+PpGL q6itAT5xVIku3/NdHQ0/ZAUxVcye9Env81RxfqsqDJ9qGw7Rsy0HQ47U2gLWCJ42 8TejWindmh5xV6Hi1F13dL9O8JUpmA== =Pdls -----END PGP SIGNATURE----- --Apple-Mail=_3C199DD2-16FC-4757-B7C7-CD5BCBDF9988-- From nobody Tue Oct 15 08:41:35 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSSJB6pmJz5Yb3h for ; Tue, 15 Oct 2024 08:41:46 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSSJB1pYrz49KL for ; Tue, 15 Oct 2024 08:41:45 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49F8fZj9098667; Tue, 15 Oct 2024 17:41:36 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1728981696; bh=l6Md6B0kgQBhau5WuD5+9pLbSQcC7A7V3T6yoS7mv2s=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=H0/+3x8qCjL4ms1PHpSeOJNWvjdNUAKrsaxpxpWWkpcCq1Dlz+zXCPFRk3izWkBVv WcA01NwjT2TKCuLaXq0jAuq16Yaz51pALixcv7V+9bjY3p/lEjUKe8+RhsiX+HyX1j H92hMRnuzdArjKSevpvvXBzi1TsgquoZqppGr0xs= Date: Tue, 15 Oct 2024 17:41:35 +0900 From: Tomoaki AOKI To: void Cc: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-Id: <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> In-Reply-To: References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XSSJB1pYrz49KL X-Spamd-Bar: ---- On Tue, 15 Oct 2024 01:03:26 +0100 void wrote: > On Mon, Oct 14, 2024 at 03:32:52PM -0400, mike tancsa wrote: > > >Did adjusting it make any difference ? > > I set it to maximum, rebooted but the vm wouldnt come up > fully lol, so made another one. kern.hz dedines how frequently the forced task (process) switch happens. The fewer the value is, the faster the process runs (lower overhead) with the cost of lower responsiveness. OTOH, the higher kern.hz is, the more chance to responding for user interaction, with the cost of total performance loss (higher overhead). These are because how much instructions could be run on single tick (process/context switching) is affected with this. And this also affects kernel, not only userland. And of course, affected by IPC and clock freq of CPU cores and memory (including caches) bandwidth, too. This means, setting too high value causes kernel to not finishing needed-finishing-in-1-tick operations. Maybe your vm kernel thread would be in this state. > I'm going to try adjusting it in small increments to see if i can get the > virtio-net performance on freebsd guests to be as quick or nearly as quick as > linux ones in bhyve. > -- This tunable is defined as SYSCTL_INT(_kern, OID_AUTO, hz, CTLFLAG_RDTUN | CTLFLAG_NOFETCH, &hz, 0, "Number of clock ticks per second"); SYSCTL_INT(_kern, OID_AUTO, hz_max, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, HZ_MAXIMUM, "Maximum hz value supported"); SYSCTL_INT(_kern, OID_AUTO, hz_min, CTLFLAG_RD, SYSCTL_NULL_INT_PTR, HZ_MINIMUM, "Minimum hz value supported"); in sys/kern/subr_param.c with related definitions and includes. In this file, HZ is dedaulted as 1000 if not defined in other place or make command line. Initially variable hz is set to -1, fetch for tunable kern.hz, if none, hz = vm_guest > VM_GUEST_NO ? HZ_VM : HZ; is applied. IIRC, in ancient days, default kern_hz (HZ) was 100 and bumped to 1000 (current default) at some point. So trying around 10000 or 5000 and if not satisfactory, try increasing or decreasing would be nice for recent amd64 hardwares. (It depends, though.) FYI, I'm configuring kern.hz=4096 in /boot/loader.conf. Lost where I've seen, but recommended by somewhere. -- Tomoaki AOKI From nobody Tue Oct 15 08:44:36 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSSMX3Hy8z5YbNn for ; Tue, 15 Oct 2024 08:44:40 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSSMW6088z4BrR; Tue, 15 Oct 2024 08:44:39 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49F8iahr099383; Tue, 15 Oct 2024 17:44:37 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1728981877; bh=n0BFDsr/j11OPMwW6ICxVOHd7vW/G6DgTnfEMFbiOYU=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=jRAhBExaYactVwSqv9mUoHHgqwppHp+78tF23ZOCARaHyOSNeCivurp0FvtKETPOM zp3EFcpAoPlEyWOOSY2PTyYceQRNXd9G2N4jY067/2hrhhx7NoiKonSQMImAvjNy2c ta7y9ktmM8FTSCmsAk0jnP3V7CCzkMTA+7coYyZ8= Date: Tue, 15 Oct 2024 17:44:36 +0900 From: Tomoaki AOKI To: Dag-Erling =?UTF-8?B?U23DuHJncmF2?= Cc: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-Id: <20241015174436.14d9d2e3187d83b1e8c1cb51@dec.sakura.ne.jp> In-Reply-To: <86v7xut00h.fsf@ltc.des.dev> References: <86zfn6u3nx.fsf@ltc.des.dev> <86v7xut00h.fsf@ltc.des.dev> Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XSSMW6088z4BrR X-Spamd-Bar: ---- On Tue, 15 Oct 2024 07:20:46 +0200 Dag-Erling Smørgrav wrote: > void writes: > > Dag-Erling Smørgrav writes: > > > void writes: > > > > I dimly remember a HZ setting, maybe kernel config option? > > > > From years ago. I can't find it in recent /sys/amd64/conf/* > > > Look in sys/conf/NOTES. > > not present in n271832-04262ed78d23 (-current) > > https://cgit.freebsd.org/src/tree/sys/conf/NOTES#n1283 > > DES > -- > Dag-Erling Smørgrav - des@FreeBSD.org Note that NOTE is not used in GENERIC (default) build. So defined value 100 would be applicable only when LINT build or intentionally defined as such somewhere or command line. -- Tomoaki AOKI From nobody Tue Oct 15 09:30:59 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSTPF2T8Wz5YdpS for ; Tue, 15 Oct 2024 09:31:13 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fhigh-b2-smtp.messagingengine.com (fhigh-b2-smtp.messagingengine.com [202.12.124.153]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSTPD3XcSz4JGr for ; Tue, 15 Oct 2024 09:31:12 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=xfR1Ude6; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=QH4KMg4d; 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Tue, 15 Oct 2024 05:31:10 -0400 (EDT) Date: Tue, 15 Oct 2024 10:30:59 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> X-Spamd-Result: default: False [-3.48 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.98)[-0.978]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[202.12.124.153:from] X-Rspamd-Queue-Id: 4XSTPD3XcSz4JGr X-Spamd-Bar: --- On Tue, Oct 15, 2024 at 05:41:35PM +0900, Tomoaki AOKI wrote: >IIRC, in ancient days, default kern_hz (HZ) was 100 and bumped to 1000 >(current default) at some point. So trying around 10000 or 5000 and >if not satisfactory, try increasing or decreasing would be nice for >recent amd64 hardwares. (It depends, though.) > >FYI, I'm configuring kern.hz=4096 in /boot/loader.conf. Lost where I've >seen, but recommended by somewhere. The test vm here defaulted to 100. I got best throughput by turning it down to 8. Not by a lot though. I've commented out the hz value for now and rebooted: % sysctl -a | ug hz 14: kern.clockrate: { hz = 100, tick = 10000, profhz = 8128, stathz = 127 } 191: kern.hz_min: 8 192: kern.hz_max: 137438 193: kern.hz: 100 6321: vfs.deferred_unmount.retry_delay_hz: 100 7299: debug.psm.hz: 20 8002: hw.atkbd.hz: 0 this is on -current built a few hrs earlier today I'll try with hz as 0 or -1. I wish I could remember the linux article, as they have a setting *something* like this and it's called something different. -- From nobody Tue Oct 15 09:41:21 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSTd11cwvz5YgJd for ; Tue, 15 Oct 2024 09:41:25 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fout-b6-smtp.messagingengine.com (fout-b6-smtp.messagingengine.com [202.12.124.149]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSTd04Rc8z4KY8 for ; Tue, 15 Oct 2024 09:41:24 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=GbJcR+Tj; dkim=pass header.d=messagingengine.com header.s=fm2 header.b="l nGezCd"; 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Tue, 15 Oct 2024 05:41:22 -0400 (EDT) Date: Tue, 15 Oct 2024 10:41:21 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <86zfn6u3nx.fsf@ltc.des.dev> <86v7xut00h.fsf@ltc.des.dev> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <86v7xut00h.fsf@ltc.des.dev> X-Spamd-Result: default: False [-3.48 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.98)[-0.977]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; MID_RHS_NOT_FQDN(0.50)[]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27:c]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:151847, ipnet:202.12.124.0/24, country:AU]; RCVD_IN_DNSWL_NONE(0.00)[202.12.124.149:from] X-Rspamd-Queue-Id: 4XSTd04Rc8z4KY8 X-Spamd-Bar: --- On Tue, Oct 15, 2024 at 07:20:46AM +0200, Dag-Erling Smørgrav wrote: >void writes: >> Dag-Erling Smørgrav writes: >> > void writes: >> > > I dimly remember a HZ setting, maybe kernel config option? >> > > From years ago. I can't find it in recent /sys/amd64/conf/* >> > Look in sys/conf/NOTES. I completely missed this last line ^^ sorry. -- From nobody Tue Oct 15 09:51:20 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSTrX0CNhz5YgZ7 for ; Tue, 15 Oct 2024 09:51:24 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fhigh-b2-smtp.messagingengine.com (fhigh-b2-smtp.messagingengine.com [202.12.124.153]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSTrW365nz4MKX for ; Tue, 15 Oct 2024 09:51:23 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=cFfYcsOi; dkim=pass header.d=messagingengine.com header.s=fm2 header.b=F3xW0r5I; spf=pass (mx1.freebsd.org: domain of void@f-m.fm designates 202.12.124.153 as permitted sender) smtp.mailfrom=void@f-m.fm; 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Tue, 15 Oct 2024 05:51:22 -0400 (EDT) Date: Tue, 15 Oct 2024 10:51:20 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: X-Spamd-Result: default: False [-3.49 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.997]; NEURAL_HAM_MEDIUM(-0.99)[-0.993]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27:c]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[202.12.124.153:from] X-Rspamd-Queue-Id: 4XSTrW365nz4MKX X-Spamd-Bar: --- On Tue, Oct 15, 2024 at 07:57:07AM +0200, Stefan Bethke wrote: >But it's not the buggy acceleration that virtio-net tries? I've turned off all offloading on my interfaces, as I was getting strange connectivity problems when it was enabled. Disabled is the default for OPNsense and many other appliances. See for example https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=165059. Thanks for this. I ran a tcpdump on the iperf3 'server' and not until I had turned off all offloading completely - in vtnet0 in the vm, bge0 on the bhyve server, and em0 on the iperf3 target, only then did incorrect checksums disappear. The bandwidth as measured with iperf3 seems to have decreased though. But the effective bandwidth, I'd guess, has gone up because there's no more reported checksum errors as measured at the target. - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.06 sec 4.46 GBytes 637 Mbits/sec 1326 sender [ 5] 0.00-60.07 sec 4.45 GBytes 637 Mbits/sec receiver I'll next try setting kern.hz to -1 -- From nobody Tue Oct 15 10:20:49 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSVVY66zYz5Yj1T for ; Tue, 15 Oct 2024 10:20:53 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fhigh-b2-smtp.messagingengine.com (fhigh-b2-smtp.messagingengine.com [202.12.124.153]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSVVX66lpz4RX9 for ; 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Tue, 15 Oct 2024 06:20:51 -0400 (EDT) Date: Tue, 15 Oct 2024 11:20:49 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: X-Spamd-Result: default: False [-3.32 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.82)[-0.825]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27:c]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[202.12.124.153:from] X-Rspamd-Queue-Id: 4XSVVX66lpz4RX9 X-Spamd-Bar: --- On Tue, Oct 15, 2024 at 10:51:20AM +0100, void wrote: >I'll next try setting kern.hz to -1 setting it to -1 returns a kern.hz value of 100 on reboot setting it to 0 returns the kern.hz_min value of 8 setting it to 1 and the kern.hz_min value to 1 still returns 8. kern.hz=8 and kern.hz=100 gave the same numbers on bandwidth tests. -- From nobody Tue Oct 15 10:25:39 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSVc66vn4z5Yjm9 for ; 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Tue, 15 Oct 2024 06:25:40 -0400 (EDT) Date: Tue, 15 Oct 2024 11:25:39 +0100 From: void To: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-ID: Mail-Followup-To: freebsd-hackers@freebsd.org References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> X-Spamd-Result: default: False [-3.34 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.84)[-0.840]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27:c]; MIME_GOOD(-0.10)[text/plain]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; RCVD_VIA_SMTP_AUTH(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[202.12.124.153:from] X-Rspamd-Queue-Id: 4XSVc61rs5z4T1w X-Spamd-Bar: --- On Tue, Oct 15, 2024 at 05:41:35PM +0900, Tomoaki AOKI wrote: >FYI, I'm configuring kern.hz=4096 in /boot/loader.conf. Lost where I've >seen, but recommended by somewhere. all offloading at source, host and destination turned off, default kern.hz in vm ================================================================================ - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.06 sec 4.46 GBytes 637 Mbits/sec 1326 sender [ 5] 0.00-60.07 sec 4.45 GBytes 637 Mbits/sec receiver same as above, but with kern.hz=8 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.02 sec 4.45 GBytes 637 Mbits/sec 1148 sender [ 5] 0.00-60.02 sec 4.45 GBytes 637 Mbits/sec receiver as above, kern.hz=4096 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.07 sec 3.09 GBytes 441 Mbits/sec 1013 sender [ 5] 0.00-60.07 sec 3.09 GBytes 441 Mbits/sec receiver With all offloading turned off, not seeing incorrect checksums at the destination now. -- From nobody Tue Oct 15 12:20:03 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSY8J1HYVz5Yrj0 for ; Tue, 15 Oct 2024 12:20:16 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSY8H3nmPz4jQg for ; Tue, 15 Oct 2024 12:20:14 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49FCK4UJ043372; Tue, 15 Oct 2024 21:20:05 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1728994805; bh=3W/hcuzjI7ih9zOA0Rg8kiRXUiKOAp0nq7kYP8BMUag=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=NZmJdw0r83QaVft9MmB2j+7RuEapl0bjsFZnXyEhc8wOwdLV7saAbG8c4Kg7PCK8l Am7RqtCDoJOaR4qXqhatwju7D+szqDST9Glp//2AAfaqqbKT7W3LLfgiCSkXqsIkqj Xce9kCUAj8tNvHYzU4fHwsqO68f0U7s6KTbzqFmQ= Date: Tue, 15 Oct 2024 21:20:03 +0900 From: Tomoaki AOKI To: void Cc: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-Id: <20241015212003.888c87d24bf6ec6dfc3fc549@dec.sakura.ne.jp> In-Reply-To: References: <20241015000117.8a731ab66a1af876879f5ca8@dec.sakura.ne.jp> <9513c9d9-8f7c-4842-a535-b387082e4e3e@sentex.net> <20241015174135.14866b319a49ddafeca6e3bb@dec.sakura.ne.jp> Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XSY8H3nmPz4jQg X-Spamd-Bar: ---- On Tue, 15 Oct 2024 11:25:39 +0100 void wrote: > On Tue, Oct 15, 2024 at 05:41:35PM +0900, Tomoaki AOKI wrote: > > >FYI, I'm configuring kern.hz=4096 in /boot/loader.conf. Lost where I've > >seen, but recommended by somewhere. > > all offloading at source, host and destination turned off, default kern.hz in vm > ================================================================================ > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-60.06 sec 4.46 GBytes 637 Mbits/sec 1326 sender > [ 5] 0.00-60.07 sec 4.45 GBytes 637 Mbits/sec receiver > > same as above, but with kern.hz=8 > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-60.02 sec 4.45 GBytes 637 Mbits/sec 1148 sender > [ 5] 0.00-60.02 sec 4.45 GBytes 637 Mbits/sec receiver > > as above, kern.hz=4096 > - - - - - - - - - - - - - - - - - - - - - - - - - > [ ID] Interval Transfer Bitrate Retr > [ 5] 0.00-60.07 sec 3.09 GBytes 441 Mbits/sec 1013 sender > [ 5] 0.00-60.07 sec 3.09 GBytes 441 Mbits/sec receiver > > With all offloading turned off, not seeing incorrect checksums at the > destination now. > -- Maybe kern.hz=4096 would be too large (short time per tick) for your VMs, as VMs basically need more time than bare metal for emulated (virtualized) syscalls or some instructions by mature. And possibly (as I don't use offloading on VirtualBox that is the only VM I tried) interactions between host (emulated hardware) and guests about offloading has some issues. -- Tomoaki AOKI From nobody Tue Oct 15 12:43:47 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSYgb3KZHz5Yt86 for ; Tue, 15 Oct 2024 12:43:55 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSYgZ6j9rz4ljQ for ; Tue, 15 Oct 2024 12:43:54 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49FChlbW048091; Tue, 15 Oct 2024 21:43:48 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1728996228; bh=E2CR2Cnyrth1ffiUpQkkCiAQb8dMEh6Cd4ZdA69RPUo=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=OS5pb9nZhVYi3Y4LlkEa4z4MfgBDHUEDYA7DKwxdclfklvrd6TarGz4ADf33u0uqD PQTJr7SJfkvHVadu9pbn/UBjC/Bv/UkZFSzFc7IxGVv0vpOkqX0L4hS0qRKr4TOLPR 542NjicIgY5qh94kCocRCPkoP7iJSEVlNH7Mfte0= Date: Tue, 15 Oct 2024 21:43:47 +0900 From: Tomoaki AOKI To: void Cc: freebsd-hackers@freebsd.org Subject: Re: polling interval Message-Id: <20241015214347.7717f2749fe5807c50d91031@dec.sakura.ne.jp> In-Reply-To: References: Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XSYgZ6j9rz4ljQ X-Spamd-Bar: ---- On Tue, 15 Oct 2024 11:20:49 +0100 void wrote: > On Tue, Oct 15, 2024 at 10:51:20AM +0100, void wrote: > > >I'll next try setting kern.hz to -1 > > setting it to -1 returns a kern.hz value of 100 on reboot > setting it to 0 returns the kern.hz_min value of 8 > setting it to 1 and the kern.hz_min value to 1 still returns 8. -1 means "choose default". Behaviors for 0 and 1 would be because HZ_MINIMUM is defined as 8 in sys/sys/time.h, causing to clip to 8. > kern.hz=8 and kern.hz=100 gave the same numbers on bandwidth tests. > -- Maybe kern.hz=100 gives enough time (per tick) and kernel returns near the time even for kern.hz=8, disposing remaining time of the tick. # There was an abandoned review D40045 to reuse the disposed remaining # (fragmented) ticks. [1] And forgot tomention in my previous post. kern.hz for VMs (recognized as running on VM by FreeBSD kernel) is 100, as the default is HZ_VM. HZ and HZ_VM is defined as 1000 and 100 respectively, if not defined elsewhere. And if HZ_VM alone is not defined elsewhere, it is defined as HZ. These are because you see default kern.hz=100 on your VMs. [1] https://reviews.freebsd.org/D40045 -- Tomoaki AOKI From nobody Tue Oct 15 21:12:15 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XSmyY6K8fz5Z0k2 for ; Tue, 15 Oct 2024 21:12:37 +0000 (UTC) (envelope-from david@crossfamilyweb.com) Received: from mail.dcrosstech.com (syn-024-097-005-251.biz.spectrum.com [24.97.5.251]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mail.dcrosstech.com", Issuer "DCrossTech.com LLC CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XSmyX5cKxz53tX for ; Tue, 15 Oct 2024 21:12:36 +0000 (UTC) (envelope-from david@crossfamilyweb.com) Authentication-Results: mx1.freebsd.org; dkim=none; spf=pass (mx1.freebsd.org: domain of david@crossfamilyweb.com designates 24.97.5.251 as permitted sender) smtp.mailfrom=david@crossfamilyweb.com; dmarc=none X-Virus-Scanned: amavisd-new at dcrosstech.com Received: from [10.1.7.155] (d155.p9.wifi.dcrosstech.com [10.1.7.155]) (authenticated bits=0) by mail.dcrosstech.com (8.15.2/8.15.2) with ESMTPSA id 49FLCG1i053431 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NO); Tue, 15 Oct 2024 21:12:17 GMT (envelope-from david@crossfamilyweb.com) X-Authentication-Warning: mail.priv.dcrosstech.com: Host d155.p9.wifi.dcrosstech.com [10.1.7.155] claimed to be [10.1.7.155] Content-Type: multipart/mixed; boundary="------------GgH21HrghlcuxFkoCfeGNwNA" Message-ID: Date: Tue, 15 Oct 2024 17:12:15 -0400 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:102.0) Gecko/20100101 Thunderbird/102.15.0 Subject: Re: Review D38047 ... and then there was one.... From: "David E. Cross" To: Marek Zarychta Cc: freebsd-hackers@freebsd.org References: <1fd47603-0bf2-4fcf-a556-22335d99e203@plan-b.pwste.edu.pl> <553ea3d5-c94e-9c2f-c044-db7986625c74@crossfamilyweb.com> Content-Language: en-US In-Reply-To: X-Spamd-Result: default: False [-1.11 / 15.00]; MIME_BASE64_TEXT_BOGUS(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-0.84)[-0.839]; R_SPF_ALLOW(-0.20)[+mx]; NEURAL_HAM_SHORT(-0.17)[-0.172]; MIME_BASE64_TEXT(0.10)[]; ONCE_RECEIVED(0.10)[]; MIME_GOOD(-0.10)[multipart/mixed,multipart/alternative,text/plain,text/x-patch]; HAS_ATTACHMENT(0.00)[]; RCVD_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; DMARC_NA(0.00)[crossfamilyweb.com]; HAS_XAW(0.00)[]; ASN(0.00)[asn:11351, ipnet:24.97.0.0/16, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:+,3:~,4:+]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEFALL_USER(0.00)[david]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[]; R_DKIM_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[] X-Rspamd-Queue-Id: 4XSmyX5cKxz53tX X-Spamd-Bar: - This is a multi-part message in MIME format. --------------GgH21HrghlcuxFkoCfeGNwNA Content-Type: multipart/alternative; boundary="------------357ZKWer2OcMUq5ruO11r39t" --------------357ZKWer2OcMUq5ruO11r39t Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Ok, I've now tested this with a full buildworld with the attached patch.  This will be being updated on D38047 immediately after I send this email; and then for the point of the reviews and getting this formally into base I will be doing the requested changes of breaking it down to smaller, but I figured this should give you a taste of the improvements: (this is with 1000 groups and users defined) ~ $ time getent group >/dev/null         0.26 real         0.00 user         0.01 sys ~ $ time getent group >/dev/null         0.02 real         0.01 user         0.00 sys On 10/13/24 14:21, David E. Cross wrote: > > I have now fixed this as well. > > WARNING, I did this as a manual patch to my tree and then put it back > in git, I have not tried this EXACT code as is; I am working on some > other changes  as well so things are a bit in flux; I will attach the > diff to this, but caveat emptor. > > The patch given is to be applied incrementally after the last patch.  > let met know how it works (or if it works!) for you. > > On 10/8/24 16:17, David E. Cross wrote: >> >> Ok, I looked a bit into this and for the case of 'getent *' it really >> is not (currently) a fair comparison to speed. >> >> For 'getent password' the system currently works as follows, for each >> datasource in the list fully iterate over EVERY datasource, and >> 'cache' is a datasource, but so is ldap. >> >> What you wind up getting is a list of EVERYTHNG in files, then a list >> of everything in cache, and then a list of everything in LDAP. (or >> whatever).   SO every time it will always go back to origin, so >> caching effectively doesn't matter except to duplicate the data. >> >> I remember this when I was doing the initial development and I looked >> into ways to NOT have it do it but for some reason I didn't think it >> was possible without a substantial rewrite, I am taking another look >> to see if that is still true or if there is a way around it. >> >> Going on my vague (it has been multiple years now), I think in the >> GENERAL case it is unavoidable.  The way NSCD typically operates is >> that looked up values are PUSHED into the cache from the client.  >> That is the client says 'do you have X'? nscd replies 'no', then the >> CLIENT falls back, does the lookup, get the value and pushes it into >> nscd.  nscd additionally has a 'perform_lookups' flag that will have >> it do the lookup itself and then tell the client the result.  The >> interaction of this variable behavior is that there is no way to >> programatically shortcircuit it without libc knowing how nscd is >> optionally configured.  If libc knew that nscd would perform the >> lookups itself then it could for getent type calls just return >> immediately after the cache layer enumeration.  if libc knew that >> nscd would NOT perform lookups then it could bypass it and do the normal. >> >> >> I guess I could implement it as follows: >> >> nscd retruns NS_SUCCESS if it performs its own lookups and then in >> the case of getent NS_SUCCESS is treated as a return step for the >> cache layer only (since otherwise getent calls are treated as >> continue otherwise you'd never enumerate anything after files). and >> NS_NOTFOUND if it doesn't.. and then the libc layer would treat that >> as a continue.  .. I think that may do it... I need to refamiliarize >> myself with that code. >> >> >> In the meantime, checking basic lookups (not enumerations) is a more >> fair test.  Also keep in mind that without [notfound=return] that >> misses will always fall back to origin, which is probably what you >> want with nscd in the default configuration, but not with nscd doing >> its own lookups. >> >> On 10/7/24 11:33, Marek Zarychta wrote: >>> >>> W dniu 7.10.2024 o 07:05, David Cross pisze: >>> >>>> How many entries are in your ldap structure? I can attempt a replication here >>> >>> Hello David, >>> >>> I will rather not expose it publicly. Whole LDAP directory contains >>> few thousand entries - and it was was used for the tests mentioned >>> in this thread. >>> >>> With the filters applied I see below 1k entries, and then lookup >>> with nsdc running takes: first lookup 0.16s, next lookups 0.09s, >>> while without nscd it varies from 0.12 to 0.08 - so nscd performs OK. >>> >>> I have your patch applied and I am still testing it with >>> net/nss-pam-ldapd from ports with patch for login classes applied >>> (it's present in port but not enabled by default). So far it works >>> without issues. >>> >>> -- >>> Marek Zarychta --------------357ZKWer2OcMUq5ruO11r39t Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit

Ok, I've now tested this with a full buildworld with the attached patch.  This will be being updated on D38047 immediately after I send this email; and then for the point of the reviews and getting this formally into base I will be doing the requested changes of breaking it down to smaller, but I figured this should give you a taste of the improvements: (this is with 1000 groups and users defined)


~ $ time getent group >/dev/null

        0.26 real         0.00 user         0.01 sys

~ $ time getent group >/dev/null

        0.02 real         0.01 user         0.00 sys


On 10/13/24 14:21, David E. Cross wrote:

I have now fixed this as well.

WARNING, I did this as a manual patch to my tree and then put it back in git, I have not tried this EXACT code as is; I am working on some other changes  as well so things are a bit in flux; I will attach the diff to this, but caveat emptor.

The patch given is to be applied incrementally after the last patch.  let met know how it works (or if it works!) for you.

On 10/8/24 16:17, David E. Cross wrote:

Ok, I looked a bit into this and for the case of 'getent *' it really is not (currently) a fair comparison to speed.

For 'getent password' the system currently works as follows, for each datasource in the list fully iterate over EVERY datasource, and 'cache' is a datasource, but so is ldap.

What you wind up getting is a list of EVERYTHNG in files, then a list of everything in cache, and then a list of everything in LDAP. (or whatever).   SO every time it will always go back to origin, so caching effectively doesn't matter except to duplicate the data.

I remember this when I was doing the initial development and I looked into ways to NOT have it do it but for some reason I didn't think it was possible without a substantial rewrite, I am taking another look to see if that is still true or if there is a way around it.

Going on my vague (it has been multiple years now), I think in the GENERAL case it is unavoidable.  The way NSCD typically operates is that looked up values are PUSHED into the cache from the client.  That is the client says 'do you have X'? nscd replies 'no', then the CLIENT falls back, does the lookup, get the value and pushes it into nscd.  nscd additionally has a 'perform_lookups' flag that will have it do the lookup itself and then tell the client the result.  The interaction of this variable behavior is that there is no way to programatically shortcircuit it without libc knowing how nscd is optionally configured.  If libc knew that nscd would perform the lookups itself then it could for getent type calls just return immediately after the cache layer enumeration.  if libc knew that nscd would NOT perform lookups then it could bypass it and do the normal.


I guess I could implement it as follows:

nscd retruns NS_SUCCESS if it performs its own lookups and then in the case of getent NS_SUCCESS is treated as a return step for the cache layer only (since otherwise getent calls are treated as continue otherwise you'd never enumerate anything after files). and NS_NOTFOUND if it doesn't.. and then the libc layer would treat that as a continue.  .. I think that may do it... I need to refamiliarize myself with that code.


In the meantime, checking basic lookups (not enumerations) is a more fair test.  Also keep in mind that without [notfound=return] that misses will always fall back to origin, which is probably what you want with nscd in the default configuration, but not with nscd doing its own lookups.

On 10/7/24 11:33, Marek Zarychta wrote:

W dniu 7.10.2024 o 07:05, David Cross pisze: 

How many entries are in your ldap structure?  I can attempt a replication here

Hello David,

I will rather not expose it publicly. Whole LDAP directory contains few thousand entries - and it was was used for the tests mentioned in this thread.

With the filters applied I see below 1k entries, and then lookup with nsdc running takes: first lookup 0.16s, next lookups 0.09s, while without nscd it varies from 0.12 to 0.08 - so nscd performs OK.

I have your patch applied and I am still testing it with net/nss-pam-ldapd from ports with patch for login classes applied (it's present in port but not enabled by default). So far it works without issues.

-- 
Marek Zarychta
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boundary="00000000000049ee070624e47788" X-Spamd-Result: default: False [-4.00 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; MID_RHS_MATCH_FROMTLD(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; RCVD_COUNT_ONE(0.00)[1]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::42c:from] X-Rspamd-Queue-Id: 4XWX0Z51fKz4GPQ X-Spamd-Bar: --- --00000000000049ee070624e47788 Content-Type: text/plain; charset="UTF-8" https://github.com/bmegli/wifi-scan Here it is. It uses nl80211.h header. I think we should do the same on FreeBSD. Mentorship is required for me to work on it. Please help me with this. --00000000000049ee070624e47788 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Here it is. It uses nl8021= 1.h header. I think we should do the same on FreeBSD. Mentorship is require= d for me to work on it. Please help me with this.
--00000000000049ee070624e47788-- From nobody Sun Oct 20 19:41:05 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XWphh3Y1Qz5ZhJp for ; Sun, 20 Oct 2024 19:41:08 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Received: from omta002.cacentral1.a.cloudfilter.net (omta002.cacentral1.a.cloudfilter.net [3.97.99.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XWphh0C6Cz4d4r for ; Sun, 20 Oct 2024 19:41:07 +0000 (UTC) (envelope-from cy.schubert@cschubert.com) Authentication-Results: mx1.freebsd.org; none Received: from shw-obgw-4003a.ext.cloudfilter.net ([10.228.9.183]) by cmsmtp with ESMTPS id 2FtqtOzBwMArN2bnXtzDt0; Sun, 20 Oct 2024 19:41:07 +0000 Received: from spqr.komquats.com ([70.66.152.170]) by cmsmtp with ESMTPSA id 2bnVtSrt1E0IV2bnWt4VqZ; Sun, 20 Oct 2024 19:41:07 +0000 X-Auth-User: cschuber X-Authority-Analysis: v=2.4 cv=cI9DsUeN c=1 sm=1 tr=0 ts=67155cd3 a=y8EK/9tc/U6QY+pUhnbtgQ==:117 a=y8EK/9tc/U6QY+pUhnbtgQ==:17 a=kj9zAlcOel0A:10 a=DAUX931o1VcA:10 a=NEAV23lmAAAA:8 a=YxBL1-UpAAAA:8 a=6I5d2MoRAAAA:8 a=EkcXrb_YAAAA:8 a=iOAlJfNJ-knqRSpXEdYA:9 a=CjuIK1q_8ugA:10 a=Ia-lj3WSrqcvXOmTRaiG:22 a=LK5xJRSDVpKd5WXXoEvA:22 Received: from slippy.cwsent.com (slippy [10.1.1.91]) by spqr.komquats.com (Postfix) with ESMTP id 8B73F2F3; Sun, 20 Oct 2024 12:41:05 -0700 (PDT) Received: by slippy.cwsent.com (Postfix, from userid 1000) id 87D67216; Sun, 20 Oct 2024 12:41:05 -0700 (PDT) X-Mailer: exmh version 2.9.0 11/07/2018 with nmh-1.8+dev Reply-to: Cy Schubert From: Cy Schubert X-os: FreeBSD X-Sender: cy@cwsent.com X-URL: http://www.cschubert.com/ To: Artem Hevorhian cc: freebsd-hackers@freebsd.org Subject: Re: Help wanted on porting a wifi library from Linux to FreeBSD In-reply-to: References: Comments: In-reply-to Artem Hevorhian message dated "Sun, 20 Oct 2024 11:38:48 +0300." List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 20 Oct 2024 12:41:05 -0700 Message-Id: <20241020194105.87D67216@slippy.cwsent.com> X-CMAE-Envelope: MS4xfNDBda8N/hIovx26/VM3YznShyXo9z1e+XUO7vCvHEKb/n06E4ihS3WAaxwdvZQK1dIfXhhaMlR/lqcUbhEnPTuTf0RkRHeda646wYZGRjCP3uhcq5It 9FH+lVXotl/5C9atVmuRQdDggfe/ZPx3XqG5nKwTLb2xSs5P0RdKJtBC+lYZDGRFBLzNDybRk4ExW4Mce9GHkCMvDLa4vON0/m9PqENHi/LGSrfFqxl+umfN XxZZoZqE98HNfNwmK0fXIg== X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:16509, ipnet:3.96.0.0/15, country:US] X-Rspamd-Queue-Id: 4XWphh0C6Cz4d4r X-Spamd-Bar: ---- In message , Artem Hevorhian writes: > > https://github.com/bmegli/wifi-scan > > Here it is. It uses nl80211.h header. I think we should do the same on > FreeBSD. Mentorship is required for me to work on it. Please help me with > this. Porting GPL code to FreeBSD is not a good idea. A rewrite under a BSD license would work though. -- Cheers, Cy Schubert FreeBSD UNIX: Web: https://FreeBSD.org NTP: Web: https://nwtime.org e^(i*pi)+1=0 From nobody Sun Oct 20 20:46:02 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XWr7f73CLz5Zlmy for ; Sun, 20 Oct 2024 20:46:06 +0000 (UTC) (envelope-from bacon4000@gmail.com) Received: from mail-yw1-x1136.google.com (mail-yw1-x1136.google.com [IPv6:2607:f8b0:4864:20::1136]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XWr7f0msTz4k4V for ; Sun, 20 Oct 2024 20:46:06 +0000 (UTC) (envelope-from bacon4000@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b=GTV7cjJ0; spf=pass (mx1.freebsd.org: domain of bacon4000@gmail.com designates 2607:f8b0:4864:20::1136 as permitted sender) smtp.mailfrom=bacon4000@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-yw1-x1136.google.com with SMTP id 00721157ae682-6e2e427b07dso30822297b3.1 for ; Sun, 20 Oct 2024 13:46:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729457165; x=1730061965; darn=freebsd.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=dqGT6Uj5LBEjQpx52vIjrxMCrpnqs9X07DkHEisUBxQ=; b=GTV7cjJ0OOSsDS4VMK9J2Sex/h237ip/8VoPOjmeBrnu0UqAft9U9RN/SAAg/dMzTD DOm5XI/KtIzCAzNlAGaF0metzqXdvczbMUTSUvx9EahMX7hLOaRoEcTvDGE/kzN9zOIW 1Ja3aOHQI2NctFzF17lpZLIocVnnsG+e3zcHZZK66X9FiIa0lzdpAQ3OnFKHzUKoDlyW 1ghkctk6VBEYucPjmrD4ecsSpQ1SxPzw0uvgXg4guyC6p9vtz4YAnOGRDxFKGgmVFy8W 0FF0ujDWKWC28J8CBm5VHQoWJ5hkvCyCEw4Sukw4ZyaiCfKL7W8Akbgl4UUYH+4H1xvY avsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729457165; x=1730061965; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=dqGT6Uj5LBEjQpx52vIjrxMCrpnqs9X07DkHEisUBxQ=; b=jy2sInyc3leVk08sqjFNUXAaEoVI7k60NXnI1nN15h4+ZSEePkc+U4ZI61HYsqgb12 jW8NP6Y/fiAvJpAPJVzZgV53P6F9zoVxrK0i8/DILcUdvK0qEESVMtzmT2+LODUXXBGM 3uVjoNltCtrcwdfOesj4J6+xI1jw9fHw513hv6uqYjIUBMIpbfba9DgpW2WaU5xkRZc/ e06NXHiLbnQe9MDNOZEpLt/cmMVb7fJwklXtPn6X0fwpBTWE+dN1PtUTyGkNduUQWa1Q WFAp7mVj5yTVJ1ARIzuZeXxQFhtpl7bljoR9Ecf76+qSvanm1teiFFVtT608+Vvm4eCI 7TuA== X-Gm-Message-State: AOJu0YywIgdJhHneIhqL7my/ungtAEByvNczvMgSPwTgLcrKO++damr6 hgM3SdRnjh4ooGPJ3z9lwZJq5bAU3FNSoSoj315OrKG3DkOPuXYj5WJFxd2c X-Google-Smtp-Source: AGHT+IF04MjJX1czGZRzY/Yz5ou+2JtvjF2OZOxdZwtRrhOVsdOgrZNWoJ/s40xbXRpEOQIKaIowaw== X-Received: by 2002:a05:690c:fcd:b0:6e3:bbc:338c with SMTP id 00721157ae682-6e5bf72c4acmr72968167b3.6.1729457164696; Sun, 20 Oct 2024 13:46:04 -0700 (PDT) Received: from [192.168.0.146] (108-255-3-0.lightspeed.milwwi.sbcglobal.net. [108.255.3.0]) by smtp.gmail.com with ESMTPSA id 00721157ae682-6e5f5ccb44fsm4401297b3.80.2024.10.20.13.46.03 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 20 Oct 2024 13:46:03 -0700 (PDT) Message-ID: Date: Sun, 20 Oct 2024 15:46:02 -0500 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Help wanted on porting a wifi library from Linux to FreeBSD To: freebsd-hackers@freebsd.org References: <20241020194105.87D67216@slippy.cwsent.com> Content-Language: en-US From: Jason Bacon In-Reply-To: <20241020194105.87D67216@slippy.cwsent.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Result: default: False [-3.99 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; MIME_GOOD(-0.10)[text/plain]; XM_UA_NO_VERSION(0.01)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_DN_NONE(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::1136:from] X-Rspamd-Queue-Id: 4XWr7f0msTz4k4V X-Spamd-Bar: --- On 10/20/24 14:41, Cy Schubert wrote: > In message om> > , Artem Hevorhian writes: >> >> https://github.com/bmegli/wifi-scan >> >> Here it is. It uses nl80211.h header. I think we should do the same on >> FreeBSD. Mentorship is required for me to work on it. Please help me with >> this. > > Porting GPL code to FreeBSD is not a good idea. A rewrite under a BSD > license would work though. Porting GPL code into the FreeBSD base is undesirable, but is there any reason this could not reside in ports? -- Life is a game. Play hard. Play fair. Have fun. From nobody Sun Oct 20 20:59:35 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XWrRT2ndXz5ZmWc for ; Sun, 20 Oct 2024 20:59:49 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XWrRT0PNyz4lCg for ; Sun, 20 Oct 2024 20:59:49 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-pf1-x434.google.com with SMTP id d2e1a72fcca58-71e4fa3ea7cso2981507b3a.0 for ; Sun, 20 Oct 2024 13:59:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20230601.gappssmtp.com; s=20230601; t=1729457987; x=1730062787; darn=freebsd.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=38C9ozoAxySi8zIO/uNTPamjWBdtIILE+4TsPBpFSqM=; b=EHW/PPdY45v1ZJjSBmCxgNStpEWgPac+/+SLVMNTNf9P+9H9OkSCNj/khXWomK+JQI mS7hR2YpmsaGaBprBSeopXgVhp3kAea0z14jzw8HSz2bTv1WBWoFJK7hqF/EtFdlIZRv DYyyUEPO54O6Sg31qXoiuCKJETPUF3HIVBUtAAn5GDTC0FPc6P0Y2rY8vxwBzcc3ecig goIGvbaNjgtC8s5k9O3kfaNXMzioCf/gcGXRTU5R+xDE0URQbdnr0tl5Zky6l4Pq2N3D gxufjWX/KV/cl6VZlHI75tNrB/Vvk6ufdVOWTfSbYUiqXeuKtV7HVMs1NgmJdpRUaaQz /IEQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729457987; x=1730062787; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=38C9ozoAxySi8zIO/uNTPamjWBdtIILE+4TsPBpFSqM=; b=kpxKv8TPvwpVDJcl85XmsUrCe6d8TLL3X+g5WdZA9z1kTsdL3vFezH7OMTKq3fqTxX tx4KShjpPjQTukI94BIU4YIiGISpGQToCeLSrrLPvR6yAV5nQxxf3M/tuYRgbi/KSEMB 5oUaI4kHHuRJcrlB9W/jgqNAPKGvVfGRVRi7pptwHHHNrxXwo/zULFTamKpfhQt72Ygp DRzNZg4ei5f4izebEaa8FRBlto2pamnJf/8MxSZ0MF80K9sje0/oQd9Qd0j9kAjttlbj vyew1vcBCNbssKKRSTPIqjb9sgCjY9UPK2mh2x/6hY2uP28t22pC1EaS5AFnNIn1g/cO Hj8A== X-Gm-Message-State: AOJu0Yw7z5KH4DkvYupB8WHMLywvCTjPtN/K9BvXcnMM3m/LYAz7QavL BO9uxQK+cKFi2GRwp7a2w7gjL6EHb9h4CQi3dr5PACEO4fCBckv9ATW//7fWrzKPxFgR3IJVA53 B4bmTMH/rL+whm+Cdie2NEwSKwBZYlUD1NDxc2tRn02R3jfW7MMedsA== X-Google-Smtp-Source: AGHT+IEPY1O1Fdvc/+cSrgBTETyL1GrSYmP/Rix9+MilcrxrnCUV805W8pgi4vMo+C5flLNX46UFp5AyURhi2o1D20M= X-Received: by 2002:a05:6a00:2d1a:b0:71d:fb29:9f07 with SMTP id d2e1a72fcca58-71ea3212103mr13970265b3a.15.1729457987286; Sun, 20 Oct 2024 13:59:47 -0700 (PDT) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 References: <20241020194105.87D67216@slippy.cwsent.com> In-Reply-To: From: Warner Losh Date: Sun, 20 Oct 2024 14:59:35 -0600 Message-ID: Subject: Re: Help wanted on porting a wifi library from Linux to FreeBSD To: Jason Bacon Cc: FreeBSD Hackers Content-Type: multipart/alternative; boundary="000000000000fc98ab0624eed0a0" X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US] X-Rspamd-Queue-Id: 4XWrRT0PNyz4lCg X-Spamd-Bar: ---- --000000000000fc98ab0624eed0a0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sun, Oct 20, 2024, 2:46=E2=80=AFPM Jason Bacon wro= te: > On 10/20/24 14:41, Cy Schubert wrote: > > In message > > om> > > , Artem Hevorhian writes: > >> > >> https://github.com/bmegli/wifi-scan > >> > >> Here it is. It uses nl80211.h header. I think we should do the same on > >> FreeBSD. Mentorship is required for me to work on it. Please help me > with > >> this. > > > > Porting GPL code to FreeBSD is not a good idea. A rewrite under a BSD > > license would work though. > > Porting GPL code into the FreeBSD base is undesirable, but is there any > reason this could not reside in ports? > Ports are fine as GPL Warner --=20 > Life is a game. Play hard. Play fair. Have fun. > > --000000000000fc98ab0624eed0a0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Sun, Oct 20, 2024, 2:46=E2=80=AFPM Jason Bacon <= bacon4000@gmail.com> wrote:
On 10/20/24 14:41, Cy Schubert wrote= :
> In message <CA+AExUT4fM+p85Shzp1xFFOrabS_FDwWYSbUJjmka6+ROOJnLw@mai= l.gmail.c
> om>
> , Artem Hevorhian writes:
>>
>> https://github.com/bmegli/wifi-scan
>>
>> Here it is. It uses nl80211.h header. I think we should do the sam= e on
>> FreeBSD. Mentorship is required for me to work on it. Please help = me with
>> this.
>
> Porting GPL code to FreeBSD is not a good idea. A rewrite under a BSD<= br> > license would work though.

Porting GPL code into the FreeBSD base is undesirable, but is there any reason this could not reside in ports?

Ports are fine as GPL=C2=A0

Warner=C2=A0

--
Life is a game.=C2=A0 Play hard.=C2=A0 Play fair.=C2=A0 Have fun.

--000000000000fc98ab0624eed0a0-- From nobody Sun Oct 20 22:22:13 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XWtGt2kYGz5ZrVZ for ; Sun, 20 Oct 2024 22:22:30 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XWtGs38tSz4tvS for ; Sun, 20 Oct 2024 22:22:28 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-21-232.area1b.commufa.jp [123.1.21.232]) (authenticated bits=0) by www121.sakura.ne.jp (8.17.1/8.17.1/[SAKURA-WEB]/20201212) with ESMTPA id 49KMMENs035239; Mon, 21 Oct 2024 07:22:14 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=dec.sakura.ne.jp; s=s2405; t=1729462934; bh=9YrPzyJQ7LTwHAj+Ukmd0WiKC955Umb9k+K2fZ4/zfQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=MySaB0OekOfJ0Pq42f/qjd6eGsK1MzNkkqGgbtsmN+aDIJyihih7AURVWW6wwQNY0 2yHYDDi41wfKuwCfTRrpdTqb0ydn3BxUD4vKR/emm2yj3f1j0Wespi/VsYyOwgz2+J 6Dv+d/GiIGdKfkBkoS6WrpULWk2YS6nuCxRiFym4= Date: Mon, 21 Oct 2024 07:22:13 +0900 From: Tomoaki AOKI To: Cy Schubert Cc: Artem Hevorhian , freebsd-hackers@freebsd.org Subject: Re: Help wanted on porting a wifi library from Linux to FreeBSD Message-Id: <20241021072213.d372a39793a9564030a31085@dec.sakura.ne.jp> In-Reply-To: <20241020194105.87D67216@slippy.cwsent.com> References: <20241020194105.87D67216@slippy.cwsent.com> Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd14.1) List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] X-Rspamd-Queue-Id: 4XWtGs38tSz4tvS X-Spamd-Bar: ---- On Sun, 20 Oct 2024 12:41:05 -0700 Cy Schubert wrote: > In message om> > , Artem Hevorhian writes: > > > > https://github.com/bmegli/wifi-scan > > > > Here it is. It uses nl80211.h header. I think we should do the same on > > FreeBSD. Mentorship is required for me to work on it. Please help me with > > this. > > Porting GPL code to FreeBSD is not a good idea. A rewrite under a BSD > license would work though. Or requesting and acquiring for ALL authors of ALL needed files to be BSD-compatiblly licensed (including dual or more licenced in conjunction with GPL)? > -- > Cheers, > Cy Schubert > FreeBSD UNIX: Web: https://FreeBSD.org > NTP: Web: https://nwtime.org > > e^(i*pi)+1=0 -- Tomoaki AOKI From nobody Sun Oct 20 22:34:53 2024 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XWtYF1WtSz5Zs16 for ; Sun, 20 Oct 2024 22:34:57 +0000 (UTC) (envelope-from bacon4000@gmail.com) Received: from mail-yb1-xb2e.google.com (mail-yb1-xb2e.google.com [IPv6:2607:f8b0:4864:20::b2e]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4XWtYD6cRCz4wlJ for ; Sun, 20 Oct 2024 22:34:56 +0000 (UTC) (envelope-from bacon4000@gmail.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-yb1-xb2e.google.com with SMTP id 3f1490d57ef6-e29756dc019so3476092276.3 for ; Sun, 20 Oct 2024 15:34:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729463696; x=1730068496; darn=freebsd.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=o875oekd4VF+DdX9oC27BuTNLl/FRxopn68bAxK1r6E=; b=Bo8HNjnaPkxNmH3dnPqNHw6IcLnAJc4fe3Qk4KUcM+b+FitnweYMDKXZ++OLtjVMnW qEzkKBLldl5gnEz94gor4g7LxjwEpE2VLnCgd9y0SZxv5jmBaAbGJcDEQoeeqjjjbg2C GRMdu/A/wJH6AoTSeknrPmv5pNzFgQgHRLSwic+K0dx3Q6wIAUmpcUCIqNP8ieAxNCmi yNcpPIUJu6cWeliMflwT44FXR2QeLjA7dIKPcQyg3pEICd9O5Z50pfVThC3jqQQrScDQ 7wajBi6xen/+65SnqiuBuNA0rwjog7HoDwdaFe8d5SH6e5MBv2nPvk6rzUmI1li/KAnv +Xvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729463696; x=1730068496; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=o875oekd4VF+DdX9oC27BuTNLl/FRxopn68bAxK1r6E=; b=pIfHy5GGPWsx0J1uM4Hv3oR/hSsBOGsWhJsADr3wSvtakNW87PLx7U1UqQ0M6yemNM pRp/k4P6nOGSxd3j6x04EpDmKkILTNXRDypOzDWTp8LITxOZ6XuWdjH5ngbQSJtfQn1D l58lzTJXg/RcYo6f9e5i6GhnkRdDZi/QZUHvNDn4AjIU+ZWGfqbLUB16jFXfhozFho6C oqjMKCtBAGA0X4sRA7jYMrYeLAzavdV1VScphnQGEv1ddMf3HYTI6x8lLr2sio7knxSb JEq+dJ5xViX36kLY+0DMtWP2eBmVuWnheyfNbDGA4h+tpSxJjvmeh5K0GroPabT+nxMN kWdw== X-Gm-Message-State: AOJu0YzgazcfvsGlahq4Kt+cnrG27WVtrYJyqf09VwrFDGN6/yXUlqLn sJywY1js0wEqs33Q/iHs15pG8345yjwjAQg3BtL9zB/wzkC9QjMt X-Google-Smtp-Source: AGHT+IEl3RaXd6xeLeaCg9eNzxDAa9+gTMLdu0P19oyeIJtQ+r0HMWmzWlJ3S8ifyn5NcyXt6h1wTg== X-Received: by 2002:a05:6902:1894:b0:e29:7d3d:6e49 with SMTP id 3f1490d57ef6-e2bb11bb128mr8913481276.4.1729463695961; Sun, 20 Oct 2024 15:34:55 -0700 (PDT) Received: from [192.168.0.146] (108-255-3-0.lightspeed.milwwi.sbcglobal.net. [108.255.3.0]) by smtp.gmail.com with ESMTPSA id 3f1490d57ef6-e2bdc98f41asm480152276.19.2024.10.20.15.34.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 20 Oct 2024 15:34:54 -0700 (PDT) Message-ID: <579931fb-3ef5-46b0-983e-0d63950cd261@gmail.com> Date: Sun, 20 Oct 2024 17:34:53 -0500 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Help wanted on porting a wifi library from Linux to FreeBSD To: Warner Losh Cc: FreeBSD Hackers References: <20241020194105.87D67216@slippy.cwsent.com> Content-Language: en-US From: Jason Bacon In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US] X-Rspamd-Queue-Id: 4XWtYD6cRCz4wlJ X-Spamd-Bar: ---- T24gMTAvMjAvMjQgMTU6NTksIFdhcm5lciBMb3NoIHdyb3RlOg0KPiANCj4gDQo+IE9uIFN1 biwgT2N0IDIwLCAyMDI0LCAyOjQ24oCvUE0gSmFzb24gQmFjb24gPGJhY29uNDAwMEBnbWFp bC5jb20gDQo+IDxtYWlsdG86YmFjb240MDAwQGdtYWlsLmNvbT4+IHdyb3RlOg0KPiANCj4g ICAgIE9uIDEwLzIwLzI0IDE0OjQxLCBDeSBTY2h1YmVydCB3cm90ZToNCj4gICAgICA+IElu IG1lc3NhZ2UNCj4gICAgIDxDQStBRXhVVDRmTStwODVTaHpwMXhGRk9yYWJTX0ZEd1dZU2JV Smpta2E2K1JPT0puTHdAbWFpbC5nbWFpbC5jDQo+ICAgICAgPiBvbT4NCj4gICAgICA+ICwg QXJ0ZW0gSGV2b3JoaWFuIHdyaXRlczoNCj4gICAgICA+Pg0KPiAgICAgID4+IGh0dHBzOi8v Z2l0aHViLmNvbS9ibWVnbGkvd2lmaS1zY2FuIDxodHRwczovL2dpdGh1Yi5jb20vYm1lZ2xp Lw0KPiAgICAgd2lmaS1zY2FuPg0KPiAgICAgID4+DQo+ICAgICAgPj4gSGVyZSBpdCBpcy4g SXQgdXNlcyBubDgwMjExLmggaGVhZGVyLiBJIHRoaW5rIHdlIHNob3VsZCBkbyB0aGUNCj4g ICAgIHNhbWUgb24NCj4gICAgICA+PiBGcmVlQlNELiBNZW50b3JzaGlwIGlzIHJlcXVpcmVk IGZvciBtZSB0byB3b3JrIG9uIGl0LiBQbGVhc2UNCj4gICAgIGhlbHAgbWUgd2l0aA0KPiAg ICAgID4+IHRoaXMuDQo+ICAgICAgPg0KPiAgICAgID4gUG9ydGluZyBHUEwgY29kZSB0byBG cmVlQlNEIGlzIG5vdCBhIGdvb2QgaWRlYS4gQSByZXdyaXRlIHVuZGVyIGEgQlNEDQo+ICAg ICAgPiBsaWNlbnNlIHdvdWxkIHdvcmsgdGhvdWdoLg0KPiANCj4gICAgIFBvcnRpbmcgR1BM IGNvZGUgaW50byB0aGUgRnJlZUJTRCBiYXNlIGlzIHVuZGVzaXJhYmxlLCBidXQgaXMgdGhl cmUgYW55DQo+ICAgICByZWFzb24gdGhpcyBjb3VsZCBub3QgcmVzaWRlIGluIHBvcnRzPw0K PiANCj4gDQo+IFBvcnRzIGFyZSBmaW5lIGFzIEdQTA0KDQpSaWdodCwgYnV0IHRoZSBxdWVz dGlvbiB3YXMgd291bGQgd2lmaS1zY2FuIHdvcmsgd2VsbCBhcyBhIHBvcnQgdnMgcGFydCAN Cm9mIGJhc2UuDQoNCi0tIA0KTGlmZSBpcyBhIGdhbWUuICBQbGF5IGhhcmQuICBQbGF5IGZh aXIuICBIYXZlIGZ1bi4NCg==