From owner-freebsd-net@freebsd.org Wed Apr 10 01:09:33 2019 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5DEAC1573780 for ; Wed, 10 Apr 2019 01:09:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id ECDEF89675 for ; Wed, 10 Apr 2019 01:09:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id A9D4E157377F; Wed, 10 Apr 2019 01:09:32 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 95905157377D for ; Wed, 10 Apr 2019 01:09:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 201C089674 for ; Wed, 10 Apr 2019 01:09:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 68B3E24E07 for ; Wed, 10 Apr 2019 01:09:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x3A19VwT074352 for ; Wed, 10 Apr 2019 01:09:31 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x3A19VFB074351 for net@FreeBSD.org; Wed, 10 Apr 2019 01:09:31 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 237072] netgraph(4): performance issue [on HardenedBSD]? Date: Wed, 10 Apr 2019 01:09:29 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.2-STABLE X-Bugzilla-Keywords: needs-qa, performance X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ler@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: mfc-stable11? mfc-stable12? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Apr 2019 01:09:33 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D237072 --- Comment #14 from Larry Rosenman --- More information from Austin Robertson (aus on github): Hey Larry, I hope you don't mind me emailing you, but I've seen you've been posting ab= out a similar issue I experienced in regards to netgraph performance with pfatt= . (I had seen some freebsd.org bug report referrals in my Github repo's traffic analytics) In my experience, the netgraph configuration in pfatt can max out a single = core when reaching gigabit speeds. In some cases, the single core performance of= the process can handle it. In other cases, it cannot and speed suffers. In the case of another user, their C2758 CPU wasn't getting full gigabit performance. Upgrading to a beefier E3-1230v6 got them the full line speeds. When being throttled by the CPU, I see a high percentage of interrupts (relative to core count) against the NIC via systat -vmstat. I suspect that= the extra packet processing isn't hardware accelerated by the NIC and being han= dled in kernel space by netgraph.=20 BSD and performance aren't my expertise, and you seem to be more savvy in t= hose areas. I thought I'd pass along my experience. If you come up with a soluti= on, I'd definitely like to here it! --=20 You are receiving this mail because: You are the assignee for the bug.=