* Francis Giraldeau ([email protected]) wrote: > Hi, > > In a trace, the time difference between two timestamps doesn't match the > time it should have elapsed. For example, when measuring the duration of > "sleep 1" in the trace, 0.358s is obtained. The real duration of the > sleep is indeed 1 second. The error seems proportional to a constant > factor. > > I get this behavior on a 32 bits Ubuntu with 2.6.35-24-lttng from the > PPA. I'm running the same version of kernel but configured with 64 bits > and durations are correct. > > I put a sample trace here: > > http://secretaire.dorsal.polymtl.ca/~fgiraldeau/sleep-1x-1sec.tar.gz > > Seems a bug to me, or maybe I'm doing something wrong?
What is the output of your /proc/cpuinfo ? Can you paste your dmesg ? Thanks, Mathieu > > Cheer, > > Francis > > > _______________________________________________ > ltt-dev mailing list > [email protected] > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com _______________________________________________ ltt-dev mailing list [email protected] http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev
