[Sugar-devel] OT: determining memory usage of short-lived processes

[Sascha Silbe]

On Sun, Jun 07, 2009 at 12:28:58AM +0200, Martin Langhoff wrote:

[ps_mem.py]
> Perhaps you knew it already -- it's a good tool worthy of promotion 
> so...
Got to know it only recently and it's indeed very useful, even though it 
requires root access (for obvious reasons).

> Run the whole thing under /usr/bin/time, which is different from the
> shell's 'time' built-in.
Interesting, always thought they have the same output. Thanks for the 
tip!

> The report is actually about the pagefaults, which for relatively 
> short runs relate almost linearly to mem usage.
But doesn't it include non-RAM pagefaults (i.e. mmap()ed files) as well?
It's a shame that Linux doesn't support most of the interesting fields 
(only utime, stime, minflt, majflt, nvcsw and nivcsw according to 
getrusage(2)). Even the proc files used by ps_mem.py are empty (in 
zombie state).

CU Sascha

-- 
http://sascha.silbe.org/
http://www.infra-silbe.de/
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