Date: Wed, 29 Jul 2015 00:42:12 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Glen Barber <gjb@FreeBSD.org> Cc: re@FreeBSD.org, Xin Li <delphij@delphij.net>, freebsd-stable@freebsd.org, d@delphij.net Subject: Re: freebsd downgrade Message-ID: <20150728214212.GK43740@zxy.spb.ru> In-Reply-To: <20150725022750.GC33184@FreeBSD.org> 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>
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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.
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