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Re: [RFC] FPU context switch

To: Jun Sun <>
Subject: Re: [RFC] FPU context switch
From: Greg Lindahl <>
Date: Tue, 17 Sep 2002 12:03:10 -0700
In-reply-to: <>; from on Tue, Sep 17, 2002 at 11:48:31AM -0700
Original-recipient: rfc822;
References: <> <> <>
User-agent: Mutt/
On Tue, Sep 17, 2002 at 11:48:31AM -0700, Jun Sun wrote:

> I think this gives a big performance improvement because most processes
> don't use FPU during their runs but they all have used_math flag set!


You really ought to prove that first. Many people spend a lot of time
optimizing things that aren't important. If it isn't important, than
the simplest scheme is the best choice.


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