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Date:      Thu, 07 Mar 2002 18:11:40 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Poul-Henning Kamp <phk@critter.freebsd.dk>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, Jeff Roberson <jeff@FreeBSD.org>, Matthew Jacob <mjacob@feral.com>
Subject:   Re: cvs commit: src/sys/sys smp.h src/sys/kern subr_smp.c src/sy
Message-ID:  <XFMail.020307181140.jhb@FreeBSD.org>
In-Reply-To: <4774.1015539960@critter.freebsd.dk>

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On 07-Mar-02 Poul-Henning Kamp wrote:
> In message <XFMail.020307171639.jhb@FreeBSD.org>, John Baldwin writes:
> 
>>Does that make sense?  I'm not say we need to support some wildly sparse
>>range,
>>but we shouldn't assume 0 and 1 for any dual CPU system.
> 
> What is the problem with putting a logical CPU id in a word in the 
> per-cpu area ?  As far as I know, that would even be faster to read
> than the APIC-id ?

Nothing.  We actully do this now.  We just base the logical ID on the physical
ID now in a 1:1 fashion.

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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