Re: Intel P6 vs P7 system call performance

H. Peter Anvin (
Tue, 17 Dec 2002 19:36:19 -0800

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...


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at