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Bob_Z_148422's avatar
Bob_Z_148422
Icon for Nimbostratus rankNimbostratus
Dec 28, 2016

LTM VE: task using high CPU

Every now and then a task stats running at high CPU and causes a lag in normal transactions.   I see that five processes are created very frequently and I assume they are for a request going throu...
application delivery
LTM
Patrik_Jonsson's avatar
Patrik_Jonsson
Icon for MVP rankMVP
Dec 28, 2016

Hey Bob!

Try running this:

watch -n1 "ps aux | awk '{if(\$3 > 10){ print \$0 }}' >> /var/tmp/psstat.log"

What it does is to once per second capture the CPU usage of processes using more than 10% CPU (increase the limit if you see fit) and logs it into 

/var/tmp/psstat.log

Then you can sort it by running:

cat /var/tmp/psstat.log | sort -rk 3,3

If you can paste the rows containing the mysterious process we might be able to figure it out.

/Patrik