Messages in this thread | | | Date | Mon, 12 Apr 1999 15:54:59 -0700 | From | David Miller <> | Subject | Re: TCP push sometimes missing under 2.2.5? |
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Date: Tue, 13 Apr 1999 00:40:12 +0200 From: Jens-Uwe Mager <jum@ra.han.de>
On Mon, Apr 12, 1999 at 08:24:18AM +1200, Chris Wedgwood wrote: > Is this really necessary (as you point out, it adds some cycles to > the fast path)? Sooner or later Apple will have to fix this...
It is just one more variable and the assignment and one more test for this variable, is that so bad?
It's not going to stop us from putting in the fix, but the issue is that register pressure is extremely high in that routine, and this change causes many more local variables to live on the stack instead of in hard registers.
Later, David S. Miller davem@redhat.com
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