From: Jun Sun <jsun@mvista.com>
To: "Kevin D. Kissell" <kevink@mips.com>
Cc: linux-mips@linux-mips.org, jsun@mvista.com
Subject: Re: [jsun@mvista.com: Re: [RFC] FPU context switch]
Date: Tue, 17 Sep 2002 17:14:34 -0700 [thread overview]
Message-ID: <20020917171434.Q17321@mvista.com> (raw)
In-Reply-To: <01b801c25ea7$ce074ed0$10eca8c0@grendel>; from kevink@mips.com on Wed, Sep 18, 2002 at 02:10:17AM +0200
On Wed, Sep 18, 2002 at 02:10:17AM +0200, Kevin D. Kissell wrote:
> Are you able to test this stuff on a proper SMP
> system, by the way? The efficiency of the code
> that manipulates interprocessor control variables
> can reasonably be expected to drop off a bit
> in a system with MP cache invalidations blasting
> left and right.
>
Yes. I understand this effect. Solution 1), 2)
and 3) don't really suffer from this problem because
variables tested & manipulated are local - unless the
process migrates which is a different problem.
Jun
next prev parent reply other threads:[~2002-09-18 0:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-17 23:04 [jsun@mvista.com: Re: [RFC] FPU context switch] Jun Sun
2002-09-18 0:10 ` Kevin D. Kissell
2002-09-18 0:10 ` Kevin D. Kissell
2002-09-18 0:14 ` Jun Sun [this message]
2002-09-18 8:45 ` Kevin D. Kissell
2002-09-18 8:45 ` Kevin D. Kissell
2002-09-18 16:57 ` Jun Sun
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