Date: Tue, 22 Oct 2013 20:24:37 -0700 From: aurfalien <aurfalien@gmail.com> To: Adrian Chadd <adrian@FreeBSD.org> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: FreeBSD, Centos and ZFS - SOLVED Message-ID: <A66C355B-D5B2-4E6F-80CF-CF1A934D172A@gmail.com> In-Reply-To: <CAJ-Vmok8uLMxtru1Z%2BHsq1tbdkf8ZU02-%2BUK-pJEH%2BanF1hqkg@mail.gmail.com> References: <CBA24BB3-4A57-428C-B342-4BEB678B8D43@gmail.com> <1381600575.18393.33219025.5D7B78D0@webmail.messagingengine.com> <8CA809B3-1692-4760-A63F-9D7451EB49BD@gmail.com> <525D143B.50202@gmail.com> <DF3E552D-D2E6-464C-88EA-7AF34E8329CC@gmail.com> <1382285088.2462.36238881.1AA6BB17@webmail.messagingengine.com> <25C055B9-4A19-46C8-B78E-AC8BD6E00CD9@gmail.com> <CAJ-Vmok8uLMxtru1Z%2BHsq1tbdkf8ZU02-%2BUK-pJEH%2BanF1hqkg@mail.gmail.com>
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On Oct 22, 2013, at 7:55 PM, Adrian Chadd wrote: > Well, the 30% diff in performance due to those two intel CPU options = means that somehow the scheduler and power management stuff in FreeBSD = isn't playing with turbo boost / speedstep. >=20 > So yeah, figuring out why would be nice. Ditto. I never enabled powerd in FreeBSD9 or 10. Unsure what the default = position is. In CentOS, I usually just set a diff BIOS feature as disabled or = performance depending on what the options are. On this server, it had acoustic/performance/balance as well as well as = that CPU option which threw me off. - aurf >=20 >=20 >=20 > -adrian >=20 >=20 >=20 > On 22 October 2013 16:40, aurfalien <aurfalien@gmail.com> wrote: >=20 > On Oct 20, 2013, at 9:04 AM, Mark Felder wrote: >=20 > > On Sat, Oct 19, 2013, at 14:31, aurfalien wrote: > >> > >> ZoL comes with a little interesting feature; arc2 compression, = which does > >> seem to enhance performance all around. I disabled this in CentOS = to > >> level the playing field. > >> > > > > FreeBSD 10 also has L2ARC compression > > > > http://svnweb.freebsd.org/base?view=3Drevision&revision=3D251478 >=20 > OMG, what a relief... the ~30% diff in performance was due to a BIOS = setting, in particular this one; >=20 > Intel Turbo Boost Technology > Enhanced Intel SpeedStep Tech >=20 > I disabled both. >=20 > In fact, FreeBSD is showing a tad better now then CentOS. I have = files if any one is interested in viewing. >=20 > Thanks to all for the rather overwhelming response :) >=20 > Actually it was good that hardly any one did as it forced me to debug = the old fashioned way :) >=20 > - aurf > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to = "freebsd-questions-unsubscribe@freebsd.org" >=20
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