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Date: Fri, 6 Jul 2001 16:24:52 -0300 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
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To: Sasha Pachev <sasha@mysql.com>
Cc: Mike Kravetz <mkravetz@sequent.com>, <linux-kernel@vger.kernel.org>
Subject: Re: Strange thread behaviour on 8-way x86 machine
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On Fri, 6 Jul 2001, Sasha Pachev wrote:

> Upon further investigation and testing, it turned out that the kernel was not
> at fault - the problem was high mutex contention, which caused frequent
> context switches, and the idle CPU was apparently from the scheduler waiting
> for the original CPU to become available too often.
>
> On a side note, it would be nice if a process could communicate
> to the kernel that it would rather run on the first available
> CPU than wait for the perfect one to become available.

The kernel already does this.

Rik
--
Executive summary of a recent Microsoft press release:
   "we are concerned about the GNU General Public License (GPL)"


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