Messages in this thread | | | Date | Mon, 16 Dec 2002 11:55:42 -0800 | From | "H. Peter Anvin" <> | Subject | Re: Intel P6 vs P7 system call performance |
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Pavel Machek wrote: > >>The vsyscall stuff costs you on every syscall. It's nice for > > > Well, the cost is basically one call. That's not *that* big cost. >
You absolutely, positively *need* the call anyway. SYSENTER trashes EIP.
-hpa
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