Re: What is kapm-idled?
I've seen some slowdown's also when kapm-idled is enabled in the kernel:
processes would be slower starting
HD access was slower
screen refresh was slower
etc...
Using kernel 2.4.9 on a Dell Latitude CP M233ST.
Once I recompiled without the option, my speed is back.
I notice that the kapm-idled still shows up in my process
list, but it is not sucking up all the CPU time now.
Steve
On Wed, Sep 05, 2001 at 01:12:04AM +0800, csj wrote:
> On 04 Sep 2001 09:53:03 +0100
> Ross Burton <ross.burton@mail.com> wrote:
> > On Mon, 2001-09-03 at 22:34, Eric G. Miller wrote:
> <snip>
> > > AFAIK, kapm-idled has something to do with apm management on newer
> > > kernels. That 80% CPU usage is apparently something of a lie, since
> > > when this process is switched in, it isn't doing anything (e.g. 80%
> > > idled, or some such). I'm still running in 2.2.x land, so maybe
> someone
> > > else can give a better explanation...
> >
> > That's right. kapm-idled is the idle time daemon in kernel 2.4.x. It
> > runs when the processor is not doing anything and calls the idle/call
> > instructions to cool the processor/slow the processor/save battery.
>
> Got it. I remember ticking some option in the xconfig after I recompiled
> for a newer processor. Now, does this "idle time daemon" have any
> performance penalty? Does it have anything to do with the slower hard
> disk accesses I've been having after I upgraded to a Duron 800?
>
>
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