(re-sending to the list because my keyboard screwed-up) On Mon, 8 Jan 2001, Tom Breza wrote:
> > Hi I just instoled kernel 2.4 on my Tosh Satelite pro 4320 > and I found that proces kapm-idled is taking quite a lot of CPU time > this is line from top > > PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND > 3 root 19 0 0 0 0 SW 0 71.6 0.0 14:46 kapm-idled > > this proces take all the time so much of procesor Time, thats quite > inoying, anyone know anything about it? That's normal. Wither 2.4 kernels, when the kernel has nothing to do it invokes a kernel thread, called kapm-idled, which is then responsible to activate the power-saving features of the CPU. The same was happening behind the stages in 2.2. The only difference is that with a 2.4 kernel this thread is visible and that it appears to take all the CPU. This is not to say that making it visible was a good idea. People keep wondering what is this kapmd process which is why it has been renamed to 'kapm-idled' in more recent kernels. Plus it makes the 'idle' value of top completely meaningless and throws off a few other applications. Oh well. > I belive that is somthing with APM, in Kernel conf I took support for > Toshiba Laptop and APM is also activate, > This is not really good to keep on laptop becuse battery will run quickly Quite the opposite as you can see. Actually on my laptop, after a few days of uptime and intensive use, kapm stops taking all the CPU time. That's when my processor gets hot and the CPU fans keeps switching on and off (when kapm works fine and the machine is idle the fan is off all the time). If someone has any idea why this happens (kernel 2.4.0test9) please let me knoe. So you see, it's a good thing that kapm-idled takes all ther CPU. -- Francois Gouget [EMAIL PROTECTED] http://fgouget.free.fr/ Any sufficiently advanced bug is indistinguishable from a feature. -- from some indian guy
