Re: PROBLEM: no cpu MHz in /proc/cpuinfo on 2.6.25.4-rt6

From: Andi Kleen
Date: Wed Jun 11 2008 - 19:09:11 EST


Mark Hounschell <markh@xxxxxxxxxx> writes:
>
> OK. If I am always using AMD Opteron/X64 class machines am I safe here
> when no cpu freq scaling stuff is on and I'm pinned to a particular processor?

It depends on what you want to be safe against, but if you mean
"RDTSC output has an ongoing stable frequency matching your wall clock with a constant
factor" then no, you won't be safe.

-Andi
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