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SubjectWhy is kslowd accumulating so much CPU time?
From

My laptop is running 2.6.35-rc2 (plus a few patches) and after not quite
four hours of beeing booted (3:45 to be precise), top shows that kslowd
has accumulated as surprising amount of CPU time. From top display:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6173 root 15 -5 0 0 0 S 6 0.0 10:42.91 kslowd001
1219 root 15 -5 0 0 0 S 5 0.0 11:00.68 kslowd000
1765 root 15 -5 0 0 0 S 5 0.0 10:59.20 kslowd002
6784 root 15 -5 0 0 0 S 4 0.0 10:34.37 kslowd003
4946 root 20 0 144m 34m 17m S 3 0.9 2:24.62 Xorg

This came up because I was trying to figure out why mouse response was
being so jerky. There aren't that many users of slow-work, and given
that I'm not using cifs, fscache, gfs2, my suspicions are falling on
drivers/gpu/drm/drm_crtc_helper.c (Would this be something that would be
in use on a Lenovo T400 laptop?)

Is there any way to easily see what is scheduling themselves to use the
slow workqueue?

Thanks,

- Ted


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