Re: kapm_idled
From: Wojtek Walczak (gminick@hacker.pl)Date: 03/23/02
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- In reply to: Thomas Conner Annandale: "kapm_idled"
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From: gminick@hacker.pl (Wojtek Walczak) Date: Sat, 23 Mar 2002 09:16:36 +0000 (UTC)
** Since micro$oft is stupid it doesn't mean
** that you should be stupid too - do NOT toppost.
Dnia Wed, 20 Mar 2002 14:24:51 +0000 (UTC), Thomas Conner Annandale napisał(a):
>My computer has been rather slow lately. I do a top and notice this line:
>
> PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
> 4 root 16 0 0 0 0 SW 52.8 0.0 5:32 kapm-idled
The linux-kernel mailing list FAQ says:
1. Why is kapmd using so much CPU time?
+ (REG) Don't worry, it's not stealing valuable CPU time from
other processes. It's just consuming idle cycles (normally
charged to the idle task, which is displayed differently in
top).
Normally, when your system is idle, the system idle task is
run, and this is shown as idle time (i.e. the "unused" CPU
time is not charged to a specific process). With APM
(Advanced Power Management), a special idle task (kapmd) is
required so that greater power saving techniques can be
enabled. So now, the "unused" CPU time is charged to the
kapmd task instead.
-- [ Wojtek gminick Walczak ][ http://hacker.pl/gminick/ ] [ gminick (at) hacker.pl ][ gminick (at) klub.chip.pl ]
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