Thread (2 messages) 2 messages, 2 authors, 2002-09-18

Re: [jsun@mvista.com: Re: [RFC] FPU context switch]

From: Jun Sun <hidden>
Date: 2002-09-18 00:27:08

Possibly related (same subject, not in this thread)

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
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