On Tue, Nov 12, 2002 at 04:11:14PM -0600, Paul Larson wrote:
I have not been able to reproduce this on a single processor machine
though.
Basically, all the test does is:
gettimeofday(&tv1, NULL);
while(!done) {
gettimeofday(&tv2, NULL);
FAIL if tv2 < tv1
tv1 = tv2;
}
Any ideas on what could be causing this?
The TSC's aren't synchronized between CPUs.
This is becoming more and more of a problem and in-escapable on some
hardware so I'm starting to wonder if assuming the TSCs are even
roughly synchronized *anywhere* is a good idea.
--cw
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