Re: OT: performance problems.
On Mon, Jan 07, 2002 at 05:53:36PM +0100, martin f krafft wrote:
> also sprach Dave Sherohman <esper@sherohman.org> [2002.01.07.1709 +0100]:
> > Although I think that ALSA sounds like the most likely source of trouble,
> > based on previous responses, I'll also point out that, with load in the
> > 3-4 range but CPU at 75% idle, your major bottleneck is most likely I/O,
> > not processor time, so nice isn't likely to help much (if at all).
>
> that's a pretty good point. i'll look into it. what are disk intensive
> processes that don't eat CPU time? cp?
Possibly. The first thing I look at when I see a situation like that
is the output of `free`. If the free mem shown on the +/- line is
less than the used swap on the last line, then any process could
become arbitrarily disk intensive.
I don't recall whether you said you were ripping CDs at the time, but
it's normal for each instance of cdparanoia (or similar) to add a
point to your load average, but that should have little to no effect
on system performance - it's spending the vast majority of its time
waiting for the CD's read buffer to fill.
--
When we reduce our own liberties to stop terrorism, the terrorists
have already won. - reverius
Innocence is no protection when governments go bad. - Tom Swiss
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