SuperMicro i7 (UP) - very slow performance
freebsd at jdc.parodius.com
Wed Sep 22 08:43:12 UTC 2010
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 at 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?
> FreeBSD galacticdominator.com 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #1: Sun
> Jun 20 21:05:37 CDT 2010
> adam at galacticdominator.com:/usr/obj/usr/src/sys/GENERIC
> CPU: Intel(R) Core(TM) i7 CPU 870 @ 2.93GHz (2940.64-MHz K8-class
> MD5 time trial. Digesting 100000 10000-byte blocks ... done
> Digest = 766a2bb5d24bddae466c572bcabca3ee
> Time = 2.012719 seconds
> Speed = 496840352.000000 bytes/second
> interrupt total
> 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
| Jeremy Chadwick jdc at 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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