Messages in this thread | | | Date | Tue, 17 Dec 2002 19:36:19 -0800 | From | "H. Peter Anvin" <> | Subject | Re: Intel P6 vs P7 system call performance |
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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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