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Re: [LUG] Unusual activiy...

 

On Sun, 19 Jun 2005 14:08:26 +0100
Adrian Midgley wrote:

> > Done that.  When I try to ssh in it just sits there and waits for the 10-15 
> > minutes until the system has calmed down again.  Also tried switching to another 
> > virtual terminal, that works but is unbearably slow.  Running top doesn't seem 
> > to show anything untoward, certainly there doesn't seem to be anything that's 
> > using lots of CPU time, although kswapd does seem to be higher up the list than 
> > normal.
> 
> I know little of these things, but is this what renice is for?

You're right, renice is for this purpose.  However, that presupposes that I know 
what process is causing problems.  You see, the actual processor usage reported by 
"top" is really low, and the kswapd process that I referred to was using something 
like 0.3% of the processor time.  Now, I haven't looked into the "nice" thing that 
much, but as I understand it, even with the highest possible priority, if a process 
isn't using the CPU time other applications will still be able to run; so lowing the 
priority of a thread that's using such low CPU times won't have much effect.  Or am 
I reading this wrong?  The disk was seeing far too much activity, though.

Grant.
-- 
Artificial intelligence is no match for nuratal stidutipy.

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