Date: Thu, 21 Dec 2017 21:39:48 +0100 From: "Kristof Provost" <kristof@sigsegv.be> To: "Michael Grimm" <trashcan@ellael.org> Cc: freebsd-jail@FreeBSD.org, freebsd-net@freebsd.org Subject: Re: performance issue within VNET jail Message-ID: <B6446660-9FD2-4C28-A3A2-8AC99624C7FF@sigsegv.be> In-Reply-To: <4F5EE3F6-0163-4435-8726-56B0D4AE9FAF@ellael.org> References: <4F5EE3F6-0163-4435-8726-56B0D4AE9FAF@ellael.org>
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On 21 Dec 2017, at 21:24, Michael Grimm wrote: > > I do have to admit that I am lost here, and that I cannot think about > what is going wrong. The last download I did try at my old severs has > been some weeks ago. Ever since I did upgrade FreeBSD 11.1-STABLE, and > I did move my infrastructure from bare metal to cloud, thus I cannot > test anymore if my old servers would have shown that performance issue > in the meantime. > > Thus any feedback is highly recommended! > Can you try turning off TSO? (`ifconfig $ifname -tso`) There have been issues with pf and TSO checksums, which looked a lot like this (i.e. bad TCP performance). Those problems should be fixed, but this is easy to test. Regards, Kristof From owner-freebsd-jail@freebsd.org Thu Dec 21 20:50:28 2017 Return-Path: <owner-freebsd-jail@freebsd.org> Delivered-To: freebsd-jail@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D87B5E89DF4; Thu, 21 Dec 2017 20:50:28 +0000 (UTC) (envelope-from trashcan@ellael.org) Received: from mx1.enfer-du-nord.net (mx1.enfer-du-nord.net [91.121.41.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A4D8777E0C; Thu, 21 Dec 2017 20:50:28 +0000 (UTC) (envelope-from trashcan@ellael.org) Received: from [IPv6:2003:8c:2e04:e501:40cc:d10e:17c0:531] (p2003008C2E04E50140CCD10E17C00531.dip0.t-ipconnect.de [IPv6:2003:8c:2e04:e501:40cc:d10e:17c0:531]) by mx1.enfer-du-nord.net (Postfix) with ESMTPSA id 3z2kL2420czDnb; Thu, 21 Dec 2017 21:50:18 +0100 (CET) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\)) Subject: Re: performance issue within VNET jail From: Michael Grimm <trashcan@ellael.org> In-Reply-To: <B6446660-9FD2-4C28-A3A2-8AC99624C7FF@sigsegv.be> Date: Thu, 21 Dec 2017 21:50:17 +0100 Cc: freebsd-net@freebsd.org, freebsd-jail@FreeBSD.org Content-Transfer-Encoding: quoted-printable Message-Id: <8102F5FD-DCFC-4EF8-A443-9E6C9EB1F467@ellael.org> References: <4F5EE3F6-0163-4435-8726-56B0D4AE9FAF@ellael.org> <B6446660-9FD2-4C28-A3A2-8AC99624C7FF@sigsegv.be> To: Kristof Provost <kristof@sigsegv.be> X-Virus-Scanned: clamav-milter 0.99.2 at mail X-Virus-Status: Clean X-Mailer: Apple Mail (2.3445.5.20) X-BeenThere: freebsd-jail@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: "Discussion about FreeBSD jail\(8\)" <freebsd-jail.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-jail>, <mailto:freebsd-jail-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-jail/>; List-Post: <mailto:freebsd-jail@freebsd.org> List-Help: <mailto:freebsd-jail-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-jail>, <mailto:freebsd-jail-request@freebsd.org?subject=subscribe> X-List-Received-Date: Thu, 21 Dec 2017 20:50:28 -0000 Kristof Provost <kristof@sigsegv.be> wrote: >=20 > On 21 Dec 2017, at 21:24, Michael Grimm wrote: >> I do have to admit that I am lost here, and that I cannot think about = what is going wrong. The last download I did try at my old severs has = been some weeks ago. Ever since I did upgrade FreeBSD 11.1-STABLE, and I = did move my infrastructure from bare metal to cloud, thus I cannot test = anymore if my old servers would have shown that performance issue in the = meantime. >>=20 >> Thus any feedback is highly recommended! > Can you try turning off TSO? (`ifconfig $ifname -tso`) >=20 > There have been issues with pf and TSO checksums, which looked a lot = like this (i.e. bad TCP performance). Those problems should be fixed, = but this is easy to test. >=20 I did try it, but without success.=20 This only worked for the external interface, though. Both epairX = interfaces didn't accept that command: ifconfig: -tso: Invalid argument I did mention that I previously tried "sysctl net.inet.tcp.tso=3D0". = That shoukld do the same, right? Thanks and regards, Michael
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