Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 28 Jul 2015 21:45:28 +0000
From:      Glen Barber <gjb@FreeBSD.org>
To:        Slawa Olhovchenkov <slw@zxy.spb.ru>
Cc:        re@FreeBSD.org, Xin Li <delphij@delphij.net>, freebsd-stable@freebsd.org, d@delphij.net
Subject:   Re: freebsd downgrade
Message-ID:  <20150728214528.GC54478@FreeBSD.org>
In-Reply-To: <20150728214212.GK43740@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>

next in thread | previous in thread | raw e-mail | index | archive | help

--E+SuQPWxZ0J/gtME
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

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 wrote:
> > > > > > >=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 you st=
ill
> > > > see degraded network performance?=20
> > >=20
> > > 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.
> > >=20
> >=20
> > Please try with the 10.2-RC1 that was just released, and report back.
>=20
> Root of cause is BIOS setting: need ACPI NUMA to OFF.
> After this change performance gain about 30%.
> Sorry for false alaram.
>=20

Thank you for providing this information.

Glen


--E+SuQPWxZ0J/gtME
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=FlVa
-----END PGP SIGNATURE-----

--E+SuQPWxZ0J/gtME--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20150728214528.GC54478>