Re: [ck] Re: [announce] [patch] Voluntary Kernel Preemption Patch

From: Chris Friesen
Date: Mon Jul 12 2004 - 09:16:30 EST


Ingo Molnar wrote:
it was reporting more accurate latencies, except that there were strange
spikes of latencies. It turned out that for whatever reason, userspace
RDTSC is not always reliable on my box (!).

Would the fact that rdtsc is not serializing have any effect here? Or would that be a small enough error to not have any effect?

Chris
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