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

Chris Friesen
2004-07-12T14:15:32Z

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