Re: [PATCH] Hook up getcpu system call for IA64

From: Ken Chen <>
Date: 2007-02-07 09:02:43
> Could you please explain why fsys call? Sys_getcpu takes about 600cycles
> on 1.6GHz Montecito. Do we need to save these cycles?

Andi Kleen used to lecture me every so often why it is important to
have fast vgetcpu on x86-64 (I don't think ia64 is excluded from
that).  His lecture is also all over the lkml mailing list.
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Received on Wed Feb 07 09:03:03 2007

This archive was generated by hypermail 2.1.8 : 2007-02-07 09:03:18 EST