Hi,
On Fri, 10 Aug 2007, Mike Galbraith wrote:
> I guess I'm going to have to give up on trying to reproduce this... my
> 3GHz P4 is just not getting there from here. Last attempt, compiled UP,
> HZ=1000 dynticks, full preempt and highres timers fwiw.
>
> 6392 root 20 0 1696 332 248 R 25.5 0.0 3:00.14 0 lt
> 6393 root 20 0 1696 332 248 R 24.9 0.0 3:00.15 0 lt
> 6391 root 20 0 1696 488 404 R 24.7 0.0 3:00.20 0 lt
> 6394 root 20 0 2888 1232 1028 R 24.5 0.1 2:58.58 0 sh
Except for UP and HZ=1000, everything else is pretty much turned off.
If you use a very recent kernel, the problem may not be visible like this
anymore.
It may be a bit easier to reproduce, if you change the end time t0 in lt.c
a little. Also try to start the busy loop first.
bye, Roman
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