I've been using monit for a little while now to monitor a few machines,
and on one particular machine which has a low priority process which
mainly runs when the CPU would have been otherwise idle (I.e. it is
"nice -n 19"), I get high user CPU usage notification, since monit
considers user usage to be "cpu_user + cpu_nice", but in reality it is a
low priority processes which would just get pushed out the way if
anything really important want to get the CPU. So I'd like to be able to
specify a check rule like "if cpu usage (user) > 70% then alert" but to
exclude the portion which came from nice. I have a couple of suggestions
for possible ways to implement it:
1. Add a new resource name which only includes cpu_user time and not
cpu_nice time - backwards compatible
2. Add a config option which excludes cpu_nice from the CPU user stat -
default to off for backwards compatibility
Of these two, I suspect the second might be simpler. Would this feature
be useful to anyone else out there?
Regards
Phil
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