William L. Maltby wrote:
Regardless of that, it sounds like your situation indicates a need to
run SAR. Turn on your system accounting collection and the reports will
let you see exactly what's happening with memory, swap, HD, ... and
when. I presume that these are as good or better than the old UNIX ones
I remember.
Once you have the bullets, I'm not sure what you might shoot, but you
ought to kill *something* just for the aggravation you've been
caused! ;-)
Bill,
After running sar, I'm not sure I'm confused as I was. I tend to
think sar might be correct in what it records and sees. Looking at
memory usage and swap, I find the system *is* using all of the available
memory, especially at 0420, most likely when the updatedb and slocate
crons run. % memory used is averaging 94.26% and swap peaked at about
21%, which sort of relates to the 221mb shown by free this morning.
When the machine is quiescent as it gets, mem usage drops to 72% and
swap drops to 0.20 %, again, which corresponds with what is reported by
free and the system monitor applet. To make a long story short, the
machine apparetly does need the swap at times, and while it's not using
much during model run time, the cron jobs do turn it loose!
Sar can report *alot* of things, and I suspect I'll be using it more
to see if there is anything I can do to tweak the thing to get a bit
more performance out of it. Bad enough that it takes so long for my
jobs to run, but the number crunching the model does IS pretty tough on
things I suppose. Guess we've beat up the swap thing enough.. I'll
try to learn more about how to use the additional info at my disposal now.
Sam
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