[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-thinkpad
Subject:    Re: [ltp] kapm-idled
From:       George Staikos <staikos () 0wned ! org>
Date:       2001-05-09 14:21:35
Message-ID: 0105091021350B.03535 () thunk ! tr ! 0wned ! org
[Download RAW message or body]

On Wednesday 09 May 2001 05:30, Falco Cesare wrote:
> I was playing with top on my TP i1200 (Debian 2.2 with Kernel 2.4.3) and i
> noticed the process
> kapm-idled doing over 25% of the cpu.
>
> I think it's a kernel daemon (maybe apm=advanced power management???), but
> it seems so expensive for cpu usage...

  That's an idle daemon which just (iirc) just issues halts to preserve power 
for the CPU.  Now I did install one kernel on my i Series that had the idle 
daemon using heavy cpu and actually making the machine very slow.  I upgraded 
and now all works fine.  The annoying thing is that it screws up statistics, 
and I think they have fixed this in the more recent 2.4.x kernels.  In fact, 
on my 2.4.1 Mandrake patched kernel, this doesn't show any cpu load % anymore 
but the cpu _Time_ still goes up (which makes sense to do).

-- 

George Staikos


----- The Linux ThinkPad mailing list -----
The linux-thinkpad mailing list home page is at:
http://www.bm-soft.com/~bm/tp_mailing.html


[prev in list] [next in list] [prev in thread] [next in thread]