Hi...
i have a strange behavior on a system, that has a much high system cpu
usage, as said by top:
Cpu(s): 26.7%us 73.3%sy 0.0%ni 0.0%id 0.0%wa 0.0%hi, 0.0%si, 0.0%st
Mem: 508220k total, 447044k used, 61176k free, 19920k buffers
Swap: 987988k total, 0k used, 987988k free, 156600k cached
I think it's strange because if I kill the most cpu hungry process, the
percent of system cpu is spreaded on the other processes, so the situation
doesnt' change.
So, you're saying that no matter what you kill, the CPU usage is still
high? Now that's weird. According to top's output, could you list your
top-5 CPU hungry process?
And, what kind of workload that is handled by this box anyway? Web
serving? compile farm? rendering? Is there something like "auto forking
when needed" daemon i.e dynamically forking new child when a job need to
be handled...
how can I debug such a issue?
Is there some /proc/ information that i can examine?
top already gather the informations from /proc tree, so you don't need
to do it manually.
NB: Is this box a SMP system (multi core, hyperthreading, and so on)?
regards,
Mulyadi
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