From: Samuel Flory <sflory@rackable.com>
To: John Appleby <john@dnsworld.co.uk>
Cc: xyko_ig@ig.com.br, linux-kernel@vger.kernel.org
Subject: Re: Wrong number of cpus detected/reported
Date: Tue, 10 Jun 2003 13:36:49 -0700 [thread overview]
Message-ID: <3EE64161.5010102@rackable.com> (raw)
In-Reply-To: <434747C01D5AC443809D5FC540501131569E@bobcat.unickz.com>
John Appleby wrote:
>>After the upgrade the system is reporting that the machine has 8 cpu
>>instead of 4. I have been looking for some kind of information on the
>>Internet (www.google.com/linux) about that but I didn't have success.
>>
>>
>
>I suspect that it is identifying 4 Xeon CPUs with Hyperthreading, which
>will correctly double the amount of processors your kernel thinks you
>have. Intel's Hyperthreading
>
>This ought to be a good thing... the only thing I don't quite understand
>is that I thought Hyperthreading was added in 2.4.17.
>
>
>
Red Hat enabled basic hyperthreading support in their 2.4.9 eratta
kernels some where along the line. I just didn't think 1.4 Xeons did
HT. (Maybe the MP Xeons are different from the DP xeons.)
--
There is no such thing as obsolete hardware.
Merely hardware that other people don't want.
(The Second Rule of Hardware Acquisition)
Sam Flory <sflory@rackable.com>
next prev parent reply other threads:[~2003-06-10 20:29 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <434747C01D5AC443809D5FC5405011310B7169@bobcat.unickz.com>
2003-06-10 20:21 ` Wrong number of cpus detected/reported John Appleby
2003-06-10 20:36 ` Samuel Flory [this message]
2003-06-10 21:04 ` Steven Cole
2003-06-10 21:35 ` Alan Cox
2003-06-10 21:52 ` Steven Cole
2003-06-10 22:06 ` Alan Cox
2003-06-10 22:16 ` mikpe
2003-06-11 16:17 ` Timothy Miller
2003-06-11 16:28 ` mikpe
2003-06-11 21:26 ` Con Kolivas
2003-06-11 0:04 Lauro, John
[not found] <434747C01D5AC443809D5FC5405011310B7190@bobcat.unickz.com>
2003-06-10 21:11 ` John Appleby
-- strict thread matches above, loose matches on Subject: below --
2003-06-10 20:35 Lauro, John
2003-06-10 18:50 José Francisco Ribeiro Neto
2003-06-10 20:17 ` David Schwartz
2003-06-10 21:08 ` Timothy Miller
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