Messages in this thread | | | Subject | Re: 2.6.19-rc6-mm1 -- sched-improve-migration-accuracy.patch slows boot | From | Don Mullis <> | Date | Tue, 28 Nov 2006 10:47:02 -0800 |
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On Mon, 2006-11-27 at 11:16 +0100, Ingo Molnar wrote: > could you run this utility: > > http://people.redhat.com/mingo/time-warp-test/time-warp-test.c > > on your box for a while (10 minutes or so) - what does it print? > > Ingo
1 CPUs, running 1 parallel test-tasks. checking for time-warps via: - read time stamp counter (RDTSC) instruction (cycle resolution) - gettimeofday (TOD) syscall (usec resolution) - clock_gettime(CLOCK_MONOTONIC) syscall (nsec resolution)
new TOD-warp maximum: -442709 usecs, 00042352e214e2f8 -> 00042352e20e21a3 | 0.69 us, TSC-warps:0 | 6.89 us, TOD-warps:1 | 6.89 us, CLOCK-warps:0 |
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