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SubjectRe: TCP push sometimes missing under 2.2.5?
   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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