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Kasumi_Ninja
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Joined: 18 Feb 2006
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Location: The Netherlands
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 Posted: Thu Jun 01, 2006 8:25 pm Post subject: [SOLVED]pdflush high cpu usage |
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Sometimes my system freezes. When I look with the command 'top' it shows that pdflush is causing the high cpu usage. What does this process do? And what can I do to get this process back to normal?
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Last edited by Kasumi_Ninja on Sat Jun 03, 2006 6:15 pm; edited 1 time in total |
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guero61
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Joined: 14 Oct 2002
Posts: 811
Location: Behind you
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| Posted: Fri Jun 02, 2006 5:50 pm Post subject: |
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AFAIK, it's a kernel thread that's part of the disk-writing chain. When you're under high disk write load, you should see it start to use a large[r] amount of processor - how much that is depends on your chipset and setup.
As far as solution, I'm clueless - unless there's a bug in your specific kernel (what are you running?) with your specific hardware, pdflush doesn't do much until another process tells it to. |
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Kasumi_Ninja
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Joined: 18 Feb 2006
Posts: 1825
Location: The Netherlands
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| Posted: Sat Jun 03, 2006 6:14 pm Post subject: |
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I traced this problem back to hdparm not being enabeled in my kernelconfig. I recompiled the kernel with these instructions: http://gentoo-wiki.com/HARDWARE_DMA_and_you and all works now 
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