Mathieu Malaterre:
>
> I am trying to find out the memory used by a process (peak memory
> actually). I found the command 'pmap', howeverI cannot find a way to
> retrieve the PID of a process when execution time is really short. For
> instance, this does not work:
>
> /bin/ls && (ps ax | grep ls)
This only starts ps | grep after ls has (successfully) finished. You
would need to use '&' instead of '&&', but that still doesn't guarantee
that ls is still running when ps collects process information. I don't
think there is any way to do that reliably. But on the other hand I
don't think memory usage for such a short-lived process is interesting
anyway.
However, instead of ps | grep I usually use pgrep.
J.
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<http://www.slowlydownward.com/NODATA/data_enter2.html>
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