On Thu, 9 Aug 2001 19:33:42 -0400, safemode <safemode@speakeasy.net> wrote:
>Is this a true usage reading or just some quirk that's supposed to happen?
>I really doubt that this kernel daemon should really be using cpu. It seems
>to respond with a higher cpu usage when i'm idle. It immediately goes away
>when something else uses cpu. If you need any more info just ask. I'm
Do you have CONFIG_APM_CPU_IDLE=y in your .config? If so, disable it.
There was a thread about this problem some months ago. I found
that on all of my APM-capable machines, including a Dell laptop,
CONFIG_APM_CPU_IDLE=y had a negative effect. The kernel ended up
in a tight loop performing tons of APM IDLE BIOS calls, since each
BIOS call returned immediately without having idled the CPU.
Leaving CONFIG_APM_CPU_IDLE unset lets the kernel use its own
"HLT when idle" code. On my main development box, idle CPU
temperature dropped >10 degrees C, and kapm-idled now uses 0% CPU.
/Mikael
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This archive was generated by hypermail 2b29 : Wed Aug 15 2001 - 21:00:31 EST