How do I measure separate CPU core usage for a process?

Question

Is there any way to measure a specific process CPU usage by cores?

I know top is good for measuring the whole system\'s CPU usage by cores and taskset can provide inform

Answer 1

dstat -C 0,1,2,3 

Will also give you the CPU usage of first 4 cores. Of course, if you have 32 cores then this command gets a little bit longer but useful if you only interested in few cores.

For example, if you only interested in core 3 and 7 then you could do

dstat -C 3,7