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Fran
Guru
Joined: 29 Feb 2004
Posts: 530
Location: Coruña (Spain)
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 Posted: Fri Oct 01, 2010 11:04 am Post subject: kslowd00x/kworker processes make my mouse jerky |
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Title says it all. I've been having this problem in my laptop (intel grapichs card) since 2.6.35. This is an example of a top output when I get a jerky mouse:
| Code: | 10158 root 15 -5 0 0 0 S 10 0.0 0:19.03 kslowd000
9997 root 15 -5 0 0 0 S 9 0.0 0:25.13 kslowd003
10159 root 15 -5 0 0 0 S 7 0.0 0:19.75 kslowd001
9996 root 15 -5 0 0 0 D 7 0.0 0:25.18 kslowd002
1477 root 20 0 156m 30m 14m D 2 0.8 0:24.24 Xorg
10013 franjva 20 0 242m 17m 11m S 1 0.5 0:00.66 gnome-terminal
10022 franjva 20 0 569m 85m 36m S 1 2.2 0:09.57 chrome
10141 franjva 20 0 876m 55m 20m S 1 1.4 0:13.53 chrome
10106 franjva 20 0 832m 23m 10m S 1 0.6 0:00.49 chrome
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I only found this thread talking about my problem, but it seems to be considered "solved" since july, so maybe my bug is different.
Anyone else with this problem?
Last edited by Fran on Sun Nov 14, 2010 3:00 pm; edited 1 time in total |
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imbiea
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 95
Location: Colorado Rockies
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| Posted: Sun Oct 31, 2010 6:57 pm Post subject: |
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I was slow to upgrade my kernel in the last few weeks.
Yes, I also have this problem with Intel Graphics card, and linux-2.6.35-gentoo-r4 The system is un-usable. Poor mouse, network, sound etc... when I ran top, I kept seeing spikes in my CPU, where kslowd000 was taking about 20% of my CPU for about 1 second, and then going off the radar.
I've gone back down to 2.6.34-r1 for the time being.
Lots of other threads outside of Gentoo talking about this issue, but I'm not seeing (yet... might have just missed it) a solution. |
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6920
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| Posted: Mon Nov 01, 2010 5:55 pm Post subject: |
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| "D" means it's waiting on the disk. Try `sysctl vm.dirty_ratio=10 vm.dirty_writeback_centisecs=1000` |
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gentoo_ram
Guru
Joined: 25 Oct 2007
Posts: 474
Location: San Diego, California USA
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| Posted: Tue Nov 02, 2010 12:09 am Post subject: |
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| kslowd are kernel threads. I highly doubt they are waiting on disk access. More likely, there is some kernel driver issue for your video driver. "D" means it is waiting for some kind of device operation to completely. Most likely having to do with the video card. I wouldn't muck with your VM settings in this case. |
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imbiea
Tux's lil' helper
Joined: 23 Nov 2004
Posts: 95
Location: Colorado Rockies
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| Posted: Tue Nov 02, 2010 12:49 am Post subject: |
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I'll try booting back into that kernel to look around more...
But let me ask. Does anyone know if this is something that has changed with 2.6.35?
Or is it something else I've done..
i.e. I "AM" trying new network drivers as well.
One thing that I DID notice, is that in switching to this kernel.. My GoogleEarth client FINALLY renders correctly. Where as before (since I've switched to 5.x on the Google Earth client) my client doesn't render right at all, it's all fragmented.. (if that's the right way to describe it)... Where as with 2.6.35 everything looks good, but I've got crap for performance. My network appears to work fine as well, but... again.. kslowd000 keeps kicking in, and killing my performance...
Once I switch back... What else should I look for ? |
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Fran
Guru
Joined: 29 Feb 2004
Posts: 530
Location: Coruña (Spain)
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