From owner-freebsd-current@freebsd.org Mon Mar 29 04:26:17 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 931C65BB43F for ; Mon, 29 Mar 2021 04:26:17 +0000 (UTC) (envelope-from gcr+freebsd-current@tharned.org) Received: from roadkill.tharned.org (tunnel294749-pt.tunnel.tserv9.chi1.ipv6.he.net [IPv6:2001:470:1f10:107f::2]) (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 "tharned.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F7zzX5RS2z4YKM for ; Mon, 29 Mar 2021 04:26:15 +0000 (UTC) (envelope-from gcr+freebsd-current@tharned.org) Received: from flake.tharned.org ([IPv6:2001:470:1f11:107f:f533:a111:d2ec:bfb5]) (authenticated bits=0) by roadkill.tharned.org (8.16.1/8.16.1) with ESMTPSA id 12T4Q296011164 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Sun, 28 Mar 2021 23:26:03 -0500 (CDT) (envelope-from gcr+freebsd-current@tharned.org) X-Authentication-Warning: roadkill.tharned.org: Host [IPv6:2001:470:1f11:107f:f533:a111:d2ec:bfb5] claimed to be flake.tharned.org From: Greg Rivers To: Guido Falsi , FreeBSD Current Cc: Graham Perrin , David G Lawrence Subject: Re: 13.0 RC4 might be delayed Date: Sun, 28 Mar 2021 23:26:02 -0500 Message-ID: <3765721.kAAoriTUSa@no.place.like.home> In-Reply-To: <20210329013713.GA52047@mailx.dglawrence.com> References: <2766233C-3CC7-4B02-95AB-7555A60FFD81@samsco.org> <1b3605eb-388e-283b-d907-67058ea62c0a@madpilot.net> <20210329013713.GA52047@mailx.dglawrence.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.4 (roadkill.tharned.org [IPv6:2001:470:1f10:107f:0:0:0:2]); Sun, 28 Mar 2021 23:26:04 -0500 (CDT) X-Rspamd-Queue-Id: 4F7zzX5RS2z4YKM X-Spamd-Bar: ----- X-Spamd-Result: default: False [-5.50 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+a]; HAS_XAW(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[tharned.org:+]; DMARC_POLICY_ALLOW(-0.50)[tharned.org,quarantine]; NEURAL_HAM_SHORT(-1.00)[-0.998]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2001:470:1f10:107f::2:from]; CTE_CASE(0.50)[]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; TAGGED_FROM(0.00)[freebsd-current]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[tharned.org:s=2020]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; DWL_DNSWL_MED(-2.00)[tharned.org:dkim]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; SPAMHAUS_ZRD(0.00)[2001:470:1f10:107f::2:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FREEMAIL_CC(0.00)[gmail.com,dglawrence.com]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-current]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Mar 2021 04:26:17 -0000 On Sunday, 28 March 2021 20:37:13 CDT David G Lawrence via freebsd-current wrote: > > > On 27/03/21 06:04, David G Lawrence via freebsd-current wrote: > > >>> On Fri, Mar 26, 2021 at 1:01 PM Graham Perrin > > >>> wrote: > > >>> > > >>>> On 26/03/2021 03:40, The Doctor via freebsd-current wrote: > > >>>>> ??? if people are having issues with ports like ??? > > >>>> > > >>>> If I'm not mistaken: > > >>>> > > >>>> * 13.0-RC3 seems to be troublesome, as a guest machine, with > > >>>> emulators/virtualbox-ose 6.1.18 as the host > > >>>> > > >>>> * no such trouble with 12.0-RELEASE-p5 as a guest. > > >>>> > > >>>> I hope to refine the bug report this weekend. > > >>>> > > >>> > > >>> Had nothing but frequent guest lockups on 6.1.18 with my Win7 system. > > >>> That > > >>> was right after 6.1.18 was put into ports. Fell back to legacy (v5) and > > >>> will try again shortly to see if it's any better. > > >> > > >> Kevin, > > >> > > >> ?????? Make sure you have these options in your /etc/sysctl.conf : > > >> > > >> vfs.aio.max_buf_aio=8192 > > >> vfs.aio.max_aio_queue_per_proc=65536 > > >> vfs.aio.max_aio_per_proc=8192 > > >> vfs.aio.max_aio_queue=65536 > > >> > > >> ?????? ...otherwise the guest I/O will random hang in VirtualBox. This > > >> issue was > > >> mitigated in a late 5.x VirtualBox by patching to not use AIO, but the > > >> issue > > >> came back in 6.x when that patch wasn't carried forward. > > > > > > Sorry I lost that patch. Can you point me to the patch? Maybe it can be > > > easily ported. > > > > > > > I found the relevant commit. Please give me some time for testing and > > I'll put this patch back in the tree. > > If you're going to put that patch back in, then AIO should probably be > made an option in the port config, as shutting AIO off by default will > have a significant performance impact. Without AIO, all guest IO will > be become synchronous. > Ideally, someone would fix the AIO case by either increasing the defaults > in FreeBSD to something reasonable, and/or properly handing the case when > an AIO limit is reached. > Agreed, it would be a shame to have AIO disabled by default. A one time update to sysctl.conf (per the existing pkg message!) is a small price to pay for much better performance. -- Greg