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Date:      Tue, 26 Feb 2008 15:01:23 +0800
From:      David Xu <davidxu@FreeBSD.org>
To:        Jeff Roberson <jroberson@chesapeake.net>
Cc:        current@FreeBSD.org
Subject:   Re: Topology aware scheduling algorithm.
Message-ID:  <47C3B943.8020407@freebsd.org>
In-Reply-To: <20080225195402.M920@desktop>
References:  <20080225161855.M920@desktop> <47C37CAC.90806@freebsd.org> <20080225195402.M920@desktop>

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Jeff Roberson wrote:

> I think our identcpu.c already detects this information.  That's what 
> I'm using.  Although I assume that all cpus are identical and fall back 
> on a flat topology if this isn't the case.  I'd like to start including 
> more cache information though.
> 
> Jeff

The patch does not assume all cpus are identical, in theory, one can 
have a machine with one cpu is 4-core and another is 2-core cpu.
only one place needs to be fixed in the patch,the global variable
cpu_feature, which is easy to fix for the patch.

David Xu




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