Messages in this thread | | | Date | Wed, 09 Jun 2010 14:36:00 -0400 | Subject | Why is kslowd accumulating so much CPU time? | From | "Theodore Ts'o" <> |
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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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