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DateTue, 17 Dec 2002 19:36:19 -0800
From"H. Peter Anvin" <>
SubjectRe: Intel P6 vs P7 system call performance
Ulrich Drepper wrote:
> 
> That's good to know but not what I meant.
> 
> I referred to syscall/sysret opcodes.  They are broken in their own way
> (destroying ecx on kernel entry) but at least they preserve eip.
> 

Destroying %ecx is a lot less destructive than destroying %eip and %esp...

	-hpa

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