From owner-freebsd-stable@freebsd.org Tue Jul 28 22:09:08 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 635E49AD543 for ; Tue, 28 Jul 2015 22:09:08 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from zxy.spb.ru (zxy.spb.ru [195.70.199.98]) (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 1E0312F2; Tue, 28 Jul 2015 22:09:08 +0000 (UTC) (envelope-from slw@zxy.spb.ru) Received: from slw by zxy.spb.ru with local (Exim 4.84 (FreeBSD)) (envelope-from ) id 1ZKD3Z-000DoJ-SW; Wed, 29 Jul 2015 01:09:05 +0300 Date: Wed, 29 Jul 2015 01:09:05 +0300 From: Slawa Olhovchenkov To: Glen Barber Cc: d@delphij.net, Xin Li , re@FreeBSD.org, freebsd-stable@freebsd.org Subject: Re: freebsd downgrade Message-ID: <20150728220905.GL43740@zxy.spb.ru> References: <1437693686.78236.2.camel@yandex.com> <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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150728214528.GC54478@FreeBSD.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: slw@zxy.spb.ru X-SA-Exim-Scanned: No (on zxy.spb.ru); SAEximRunCond expanded to false 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 22:09:08 -0000 On Tue, Jul 28, 2015 at 09:45:28PM +0000, Glen Barber wrote: > 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: > > > > > 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: > > > > > > > > > On Fri, Jul 24, 2015 at 10:50:10AM +0300, Slawa Olhovchenkov wrote: > > > > > > > > > > > > > > > > For me -- degradate network performance, about 30%. I am do > > > > > > > > verification now, by downgrading kernel. > > > > > > > > > > > > > > What kind of workload and what NIC are you using? > > > > > > > > > > > > Chelsio T580-LP-CR, http serving. > > > > > > r276179 can utilise 40Gbit, r281264 -- only 28Gbit. > > > > > > > > > > Can you please try -RC1 when it comes out and report back if you still > > > > > see degraded network performance? > > > > > > > > Now I am try revisons r276179 and compare with r281264 (for absolutly > > > > 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. > > > > > > > > > > Please try with the 10.2-RC1 that was just released, and report back. > > > > Root of cause is BIOS setting: need ACPI NUMA to OFF. > > After this change performance gain about 30%. > > Sorry for false alaram. > > > > Thank you for providing this information. Supermicro X10DRi + Dual E5-2640v3, if you interesting