Date: Mon, 9 Oct 2017 12:02:24 +0200 From: "O. Hartmann" <ohartmann@walstatt.org> To: Allan Jude <allanjude@freebsd.org> Cc: freebsd-performance@freebsd.org Subject: Re: Xeon Gold 6138's Running FBSD 11.1 and TrueOS Stable [GCC 5.4] Message-ID: <20171009120224.3f2ca1e6@thor.intern.walstatt.dynvpn.de> In-Reply-To: <43eb65d2-ffed-8216-17f8-7936932e5e0a@freebsd.org> References: <CAD2Ti28dJFMf16osgLT8%2BdayPJZDtuALncs5MUnoQGqvbFc2wQ@mail.gmail.com> <43eb65d2-ffed-8216-17f8-7936932e5e0a@freebsd.org>
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--Sig_/rePbvxrMaFY+S1D=Uv52lqZ Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Am Sun, 8 Oct 2017 22:42:01 -0400 Allan Jude <allanjude@freebsd.org> schrieb: > On 2017-10-08 21:03, grarpamp wrote: > > http://www.phoronix.com/vr.php?view=3D25148 > >=20 > > While we have tested a number of Linux distributions on Intel's new > > Xeon Scalable platform, here are some initial BSD tests using two Xeon > > Gold 6138 processors with the Tyan GT24E-B7106 1U barebones server. > > FreeBSD 11.1 and the FreeBSD-derivative desktop/workstation-focused > > TrueOS (formerly known as PC-BSD) were the primary candidates for > > testing. TrueOS stable is currently tracking FreeBSD 12.0-CURRENT > > development. > > When comparing the out-of-the-box performance of FreeBSD/TrueOS and > > even with running under the GCC compiler rather than LLVM Clang, the > > Linux distributions were offering noticeably better performance on > > this dual Intel Xeon Gold server. > > _______________________________________________ > > freebsd-performance@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-performance > > To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freeb= sd.org" > > =20 >=20 > You might want to try enabling turbo boost. >=20 > sysctl dev.cpu.0.freq=3D9999 >=20 > This will change the cpu frequency from the default (2000 mhz) to 2001 > mhz, which will enable turbo boost (this specific CPU bursts to 3700 > mhz), so this will likely make a very large difference in your benchmarks. >=20 > To get more consistent results, you may actually want to disable > turboboost in the bios, and rerun the benchmarks on ALL of the operating > systems. >=20 Wow, the difference between the FreeBSDs and Linux performance is amazing a= nd for those looking at the first time on such benchmarks not knowing much about the tur= bo boost issue one would definitely choose the faster one :-( I'd appreciate results of a benchmark considering no boost and with a light= sched on the scheduler (doesn't Linux have a very sophisticated scheduler dealing/scalin= g very efficient with lots of threads/cpu cores? This could also be a very interes= ting benchmark pointing to AMDs new Epyc platform comprised also from lots of cpu cores). Kind regards, oh --=20 O. Hartmann Ich widerspreche der Nutzung oder =C3=9Cbermittlung meiner Daten f=C3=BCr Werbezwecke oder f=C3=BCr die Markt- oder Meinungsforschung (=C2=A7 28 Abs.= 4 BDSG). --Sig_/rePbvxrMaFY+S1D=Uv52lqZ Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iLUEARMKAB0WIQQZVZMzAtwC2T/86TrS528fyFhYlAUCWdtJMAAKCRDS528fyFhY lBZzAfsEJ6NkrtoNOZsiEcmDsws74dxyg9yuio7FvGr4DzsMnzGSOtK48KDfqmDh 2oMLi0+sH3JWALlGjmmVC65Ab+ZIAgCL7Q9NaV84SwfnQVdK2olORJLEQgkVHXoA j+8dPMl7uel2aJUmSbDiRiASsRXydb6viKRnonBZpvdiwHfsmBfW =3jrZ -----END PGP SIGNATURE----- --Sig_/rePbvxrMaFY+S1D=Uv52lqZ--
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