Re: [Bug #12650] Strange load average and ksoftirqd behavior with2.6.29-rc2-git1

From: Ingo Molnar
Date: Mon Feb 16 2009 - 04:21:29 EST



* Damien Wyart <damien.wyart@xxxxxxx> wrote:

> > Does it find any TSC time warps?
>
> Seems not.

ok, it's indeed pretty conclusive:

| 2 CPUs, running 2 parallel test-tasks.
| checking for time-warps via:
| - read time stamp counter (RDTSC) instruction (cycle resolution)
|
| | TSC: 0.32us, fail:0 |

i suspect you ran it for at least a couple of minutes, and the ksoftirqd
anomaly occured during it, right?

Ingo
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