iowait using all my CPU after suspend
William John Murray
W.J.Murray at rl.ac.uk
Tue Feb 5 08:59:24 UTC 2008
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
--
________________________________________________________________
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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