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Date:      Wed, 22 Sep 2010 18:12:30 +1000
From:      Peter Jeremy <peterjeremy@acm.org>
To:        Bryce <bryce@bryce.net>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: SuperMicro i7 (UP) - very slow performance
Message-ID:  <20100922081230.GA20489@server.vk2pj.dyndns.org>
In-Reply-To: <10b0bdef-2bb1-44c8-9ffb-7d3167147a4f@q2g2000vbk.googlegroups.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>

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On 2010-Sep-21 20:02:09 -0700, Bryce <bryce@bryce.net> wrote:
>On Sep 20, 6:17=A0am, peterjer...@acm.org (Peter Jeremy) wrote:
>> On 2010-Sep-18 08:32:32 -0500, Bryce Edwards <br...@bryce.net> wrote:
>>
>> >I have a Supermicro with the C7X58 motherboard and an i7 930 cpu, and
>> >it is nowhere near the performance it should be. =A0A buildworld just
>> >took 22.5 hours!

>> - md5 -t =A0 [this will help determine if the problem is lack of CPU]
>
>MD5 time trial. Digesting 100000 10000-byte blocks ... done
>Digest =3D 766a2bb5d24bddae466c572bcabca3ee
>Time =3D 5.421381 seconds
>Speed =3D 184454848.000000 bytes/second

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?

--=20
Peter Jeremy

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