Date: Wed, 22 Sep 2010 01:43:10 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Adam Vande More <amvandemore@gmail.com> Cc: Bryce <bryce@bryce.net>, freebsd-stable@freebsd.org, Peter Jeremy <peterjeremy@acm.org> Subject: Re: SuperMicro i7 (UP) - very slow performance Message-ID: <20100922084310.GA6760@icarus.home.lan> In-Reply-To: <AANLkTimRpatbjTcpdBT6EV1Jb2U3ake4me7YPxHhwO7K@mail.gmail.com> References: <AANLkTin2XH8Gs0ytgHsuF50iUJ3JFQU_OO3xSRfq3-C8@mail.gmail.com> <mailpost.1284981513.7745206.53335.mailing.freebsd.stable@FreeBSD.cs.nctu.edu.tw> <10b0bdef-2bb1-44c8-9ffb-7d3167147a4f@q2g2000vbk.googlegroups.com> <20100922081230.GA20489@server.vk2pj.dyndns.org> <AANLkTimRpatbjTcpdBT6EV1Jb2U3ake4me7YPxHhwO7K@mail.gmail.com>
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On Wed, Sep 22, 2010 at 03:30:33AM -0500, Adam Vande More wrote:
> On Wed, Sep 22, 2010 at 3:12 AM, Peter Jeremy <peterjeremy@acm.org> wrote:
>
> > I think something is badly wrong here. That's less than 1/2 the speed
> > of my Athlon 4850e (2.5GHz) and only 60% more than my Atom N270. None
> > of the other figures you posted look anomolous. Are you sure the CPU
> > is actually running at full speed and you haven't done something like
> > disable the caches in BIOS?
> >
>
> FWIW:
>
> FreeBSD galacticdominator.com 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #1: Sun
> Jun 20 21:05:37 CDT 2010
> adam@galacticdominator.com:/usr/obj/usr/src/sys/GENERIC
> amd64
> CPU: Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz (2940.64-MHz K8-class
> CPU)
>
> MD5 time trial. Digesting 100000 10000-byte blocks ... done
> Digest = 766a2bb5d24bddae466c572bcabca3ee
> Time = 2.012719 seconds
> Speed = 496840352.000000 bytes/second
>
> vmstat
> -i
>
> interrupt total
> rate
>
> irq16: vgapci0+ 10720642 54
> irq18: fwohci0 2 0
> irq23: ehci1 623712 3
> cpu0: timer 393496151 1996
> irq256: hdac0 8063581 40
> irq257: re0 4136265 20
> irq259: ahci1 1925783 9
> cpu1: timer 393494902 1996
> cpu6: timer 393494606 1996
> cpu5: timer 393494653 1996
> cpu7: timer 393494701 1996
> cpu4: timer 393494785 1996
> cpu3: timer 393494732 1996
> cpu2: timer 393494404 1996
> Total 3173428919 16102
>
> His interrupts seem high compared to this setup, but I don't what expected
> values should be.
How are his interrupt rates "higher" than yours? If you're focused on
the cpuX entries, don't be.
To the OP:
1) I don't see how/why USB Legacy support would have anything to do with
your problem (meaning: you stated that things "improved a little" if you
disabled USB Legacy support in the BIOS, which makes no sense given what
that option does).
2) There's been a discussion on -stable about FreeBSD incorrectly
determining different kinds of CPU characteristics on newer processors
like the i7, with HTT in use. I can dig up the thread if you'd like.
It does include a patch.
3) Reset the BIOS settings to Factory Defaults ("Load Setup Defaults"
or the like), and then write down whatever you change, then post the
changes here.
--
| Jeremy Chadwick jdc@parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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