iowait using all my CPU after suspend
William John Murray
W.J.Murray at rl.ac.uk
Tue Feb 5 10:56:46 UTC 2008
On Tue, 2008-02-05 at 08:59 +0000, William John Murray wrote:
> My laptop suspends/resumes using fglrx. Good.
> But on resume it is often incredibly unresponsive.
>
> The 'system monitor' applet shows CPU 100% busy, nearly all in 'IO
> wait'
> mpstat claims iowait is 7%, idle 59%.
>
> I don't know what I am doing, but I google-guess:
> ps -eo pid,tid,class,rtprio,ni,pri,psr,pcpu,stat,wchan:14,comm | grep D
>
> PID TID CLS RTPRIO NI PRI PSR %CPU STAT WCHAN COMMAND
> 238 238 TS - 0 19 0 0.0 D congestion_wai pdflush
> 239 239 TS - -5 24 0 0.0 D< get_request_wa kswapd0
> 497 497 TS - -5 24 0 0.0 D< get_request_wa kjournald
> 760 760 TS - 0 19 0 0.0 D+ sync_buffer bash
> 761 761 TS - 0 19 0 0.0 D sync_page sh
> 2641 2641 TS - 0 19 0 5.0 Ds+ sync_page X
> 3286 3286 TS - 7 12 0 0.1 DNl sync_page beagled
> 3376 3376 TS - 0 19 0 0.0 Dl sync_page
> pam-panel-icon
> 4450 4450 TS - 0 19 0 6.5 Dl sync_page firefox-bin
>
>
> Anyone know how I should proceed?
>
> Thank you,
> Bill
>
Hm.. I learnt something. If I suspend with a click on the battery icon
it resumes. But if I close the lid it doesn't. What is the difference?
Bill
--
________________________________________________________________
Dr William Murray w.j.murray at rl.ac.uk (44)-1235-446256
RAL, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
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