CPU/RAM Problem
 

I am having a machine that with no clear reason just freezes and i have to do restart before getting everything going again. Is there a way to log the cpu and RAM usage to enable me to check which processes used the most cpu and ram at the point before the machine freezes. I think one of my programs just start using all the cpu available. Do you know about a problem in Mysql using up all cpu available?

Isak

If you haven't changed anything and this just suddenly started then I'd be looking at hardware not software. Even with a fullyloaded system you shouldn't get freezes for no reason. Nothing is listed in /var/log/messages?

If you do what to try to find out whats going on with your processes you can always run something like every minute from roots crontab, but this still may not show you the problem as it will use resources itself.

HTH

Jamie...

'top' of course gives you a running view of every processes RAM and processor usage. If the freezes happen with enough warning, you may also want a terminal running with:

tail -f /var/log/messages

Honestly if its a sudden hard freeze, that's typically a hardware issue: dead fans, bad memory, etc.

Cheers,

Finegan

I had a problem that sounds something like that. In my case the
browser just ate up the whole RAM and swap until everything
- well not really crashed - but it took about 3 minutes just to get
a shell up to kill the browser.
If you running KDE or Gnome try to run a systemmonitor in the
taskbar that shows what is going on with your memory.

I had problems with that also.

In my case, it was a bad memory card. It would work on boot testing, but once Linux started trying to use it, BAM! Freeze.