From owner-freebsd-stable@freebsd.org Tue Jul 28 23:02:51 2015 Return-Path: Delivered-To: freebsd-stable@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 B465C9AD6B2 for ; Tue, 28 Jul 2015 23:02:51 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 93559997; Tue, 28 Jul 2015 23:02:51 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from FreeBSD.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by freefall.freebsd.org (Postfix) with ESMTP id D06471155; Tue, 28 Jul 2015 23:02:50 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Date: Tue, 28 Jul 2015 23:02:49 +0000 From: Glen Barber To: Slawa Olhovchenkov Cc: d@delphij.net, Xin Li , re@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: freebsd downgrade Message-ID: <20150728230249.GE54478@FreeBSD.org> References: <55B17DEB.6070302@delphij.net> <20150724072052.GF43740@zxy.spb.ru> <55B1EC8F.7050304@delphij.net> <20150724075010.GG43740@zxy.spb.ru> <20150724152555.GB4276@ox> <20150724153632.GH43740@zxy.spb.ru> <20150725022750.GC33184@FreeBSD.org> <20150728214212.GK43740@zxy.spb.ru> <20150728214528.GC54478@FreeBSD.org> <20150728220905.GL43740@zxy.spb.ru> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3UPJqPzJiScbNEd6" Content-Disposition: inline In-Reply-To: <20150728220905.GL43740@zxy.spb.ru> X-Operating-System: FreeBSD 11.0-CURRENT amd64 X-SCUD-Definition: Sudden Completely Unexpected Dataloss X-SULE-Definition: Sudden Unexpected Learning Event X-PEKBAC-Definition: Problem Exists, Keyboard Between Admin/Computer User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Jul 2015 23:02:51 -0000 --3UPJqPzJiScbNEd6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jul 29, 2015 at 01:09:05AM +0300, Slawa Olhovchenkov wrote: > On Tue, Jul 28, 2015 at 09:45:28PM +0000, Glen Barber wrote: >=20 > > On Wed, Jul 29, 2015 at 12:42:12AM +0300, Slawa Olhovchenkov wrote: > > > On Sat, Jul 25, 2015 at 02:27:50AM +0000, Glen Barber wrote: > > >=20 > > > > On Fri, Jul 24, 2015 at 06:36:32PM +0300, Slawa Olhovchenkov wrote: > > > > > On Fri, Jul 24, 2015 at 08:25:55AM -0700, Navdeep Parhar wrote: > > > > >=20 > > > > > > On Fri, Jul 24, 2015 at 10:50:10AM +0300, Slawa Olhovchenkov wr= ote: > > > > > > > > >=20 > > > > > > > > > For me -- degradate network performance, about 30%. I am = do > > > > > > > > > verification now, by downgrading kernel. > > > > > > > >=20 > > > > > > > > What kind of workload and what NIC are you using? > > > > > > >=20 > > > > > > > Chelsio T580-LP-CR, http serving. > > > > > > > r276179 can utilise 40Gbit, r281264 -- only 28Gbit. > > > > > >=20 > > > > > > Can you please try -RC1 when it comes out and report back if yo= u still > > > > > > see degraded network performance?=20 > > > > >=20 > > > > > Now I am try revisons r276179 and compare with r281264 (for absol= utly > > > > > clean compare -- same hardware, same configuration, same workload) > > > > > before this I am comare slighty different hardware (card instaled= in > > > > > different slots) and posibly different workload. > > > > > After this I am try r278800 and RC1 -- one times per day. > > > > >=20 > > > >=20 > > > > Please try with the 10.2-RC1 that was just released, and report bac= k. > > >=20 > > > Root of cause is BIOS setting: need ACPI NUMA to OFF. > > > After this change performance gain about 30%. > > > Sorry for false alaram. > > >=20 > >=20 > > Thank you for providing this information. >=20 > Supermicro X10DRi + Dual E5-2640v3, if you interesting >=20 Yes, thank you. We have a few X10SLH-F/X10SLM+-F systems in the FreeBSD.org cluster, but I am unsure if this option is available on all X10-series systems. I'll reboot one of them later today, and dig around in the BIOS. 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