Re: PATCH: Precise Accounting for 2.6.7
From: Andi Kleen
Date: Wed Jun 23 2004 - 10:00:24 EST
Timm Morten Steinbeck <timm.steinbeck@xxxxxxxxxxxxxxxxxxxxx> writes:
> Hi,
>
> we have ported our x86 precise accounting patch from the 2.4 kernel
> series to 2.6.7.
[...]
On many SMP systems it will not be very precise after longer uptimes
because the TSCs of the CPUs drift away noticeable and timestamps
from different CPUs cannot be really compared.
-Andi
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