Messages in this thread | | | Date | Tue, 19 Nov 2002 10:02:42 -0500 (EST) | From | Ian Morgan <> | Subject | Re: p4-clockmod doing the Right Thing[tm]? |
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On Tue, 19 Nov 2002, Ian Morgan wrote:
> ... the p4-clockmod module loads OK. Thx.
OK.. this is strange, maybe.
# cat /proc/cpufreq minimum CPU frequency - maximum CPU frequency - policy CPU 0 300685 kHz ( 12 %) - 2405487 kHz (100 %) - performance
# cat /proc/sys/cpu/0/* 2405487 2405487 300685
# echo 300685 >proc/sys/cpu/0/speed [box stalls for about 25-30 seconds]
# cat /proc/sys/cpu/0/* 300685 2405487 300685
# echo 2405487 >proc/sys/cpu/0/speed [box stalls for about 25-30 seconds]
# cat /proc/sys/cpu/0/* 2706165 2405487 300685
# cat /proc/cpufreq minimum CPU frequency - maximum CPU frequency - policy CPU 0 2405487 kHz ( 100 %) - 2706165 kHz (112 %) - powersave
?!?! Should the P4 really be able to go to 112%, and why would it do that after I told it to go back to 100% ?
Any idea why the box would stall (at least no kb/mouse input is accepted, not sure about other interrupts) for such a long time when changing the speed?
On the other hand, some short (<1 min) cpu-bound processes for benchmarking each took the same amount of time to run when the clock was at 12%, 100%, and 112%, so I'm not sure the clock was really being changed at all.
Regards, Ian Morgan
-- ------------------------------------------------------------------- Ian E. Morgan Vice President & C.O.O. Webcon, Inc. imorgan@webcon.ca PGP: #2DA40D07 www.webcon.ca * Customized Linux network solutions for your business * -------------------------------------------------------------------
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