how to measure multi process?

[softarts]

i.e. 7-8 process in same computer, communicated with each othervia socket, I want to measure how many CPU times spent on the socket, to see if we can improve the performance.can I regard these 8 process as a "group" and measure the % cpu time on socket ?

seems I can only measure the process one by one withcall-graph activity?so I have to do some calculationto get the socket time.

[Peter_W_Intel]

I suppose that call graph results alway provide time spending without CPU-n specific info, that is, you can know the function spending time but don't know exact time on each CPU; sampling result will provide much detail info on each CPU - if click "CPU" icon on toolbar for processes/threads/modules/hotspotsreports.

Regards, Peter