Messages in this thread |  | | Date | Fri, 17 Nov 2000 14:54:36 +0100 | From | Andi Kleen <> | Subject | Re: Error in x86 CPU capabilities starting with test5/6 |
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On Fri, Nov 17, 2000 at 08:40:27AM -0500, Jeff Garzik wrote: > Andi Kleen wrote: > > No it would not. Often you want cycle accurate couting for profiling > > purposes. > > Isn't that why /dev/cpu/%d/msr exists?
Requires either root privileges or is a big security hole.
[of course rdtsc only works properly on UP or with bind_cpu()] -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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