On Jan 26, 5:43 am, Karthik Gurusamy <[EMAIL PROTECTED]> wrote: > Hi, > > Wondering if there is a way to measure a child process's cpu usage > (sys and user) when the child is still running. I see os.times() > working fine in my system (Linux 2.6.9-42.7.ELsmp), but it gives valid > data only after the child has exited. When the child is alive, > os.times() data for child is zero for both child-sys and child-user > cpu. > > My script (process P1) launches child process P2 (using > popen2.Popen3). P2 is a long running process (big compilation). Every > minute or so, from P1, I want to measure how much cpu P2 has consumed > and based on that I can make some estimate on the completion time of > P2 (I have a rough idea how much total cpu P2 needs to complete). > > I understand it may be too expensive to update this information to the > parent process when any of the child/grand-child completes; but > wondering if any there is any way to get this info; the expensive > operations is on-demand only when the request is made. > > Thanks, > Karthik
I had a similar requirement in December and found: http://lilypond.org/~janneke/software/ proc-time.c and proc-time.py poll /proc/.... files whilst command is running to get stats. Enjoy, - Paddy. -- http://mail.python.org/mailman/listinfo/python-list
