Still waiting for swap prefetch [LWN.net]

Still waiting for swap prefetch

Posted Jul 26, 2007 19:01 UTC (Thu) by nevyn (subscriber, #33129)
In reply to: Still waiting for swap prefetch by vmole
Parent article: Still waiting for swap prefetch

Let's try longer than 30 secs, eh?

% ps ax -o cmd:50,vsz,rss,stime | egrep '[p]ython'
/usr/bin/python -E /usr/sbin/setroubleshootd       808024 12104 Jul06
python /usr/share/system-config-printer/applet.py  232764  6436 Jul06
/usr/bin/python -E /usr/bin/sealert -s             411728 18524 Jul06
python /usr/libexec/revelation-applet --oaf-activa 458328 55056 Jul06
python /usr/lib64/gdesklets/gdesklets-daemon       453980 65768 Jul23
python ./hpssd.py                                  171220  1176 Jul11

...that's 2_536_044 KB VSZ and 159_064 KB RSS, and as you can see I've rebooted gdesklets recently (it was roughly double that, I think).

Plus I'm not running pupplet/yum-updatesd atm. And for instance "revelation-applet" is just a text entry box 95% of the time.

I appreciate that the huge VSZ numbers are (hopefully) mostly unused shared libs. etc. but half a GB is still a lot for the OS to manage for a text box, and 40+MB of RSS for a simple GUI is far from "so much crap".

For comparison my webserver uses two processes with a VSZ of about 12MB each and RSS of about 1MB each, and I'd prefer that to be smaller.

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Still waiting for swap prefetch

Posted Jul 26, 2007 19:24 UTC (Thu) by vmole (subscriber, #111) [Link]

You said "a simple hello world" program, and that's what I tested. Comparing GUI programs to a webserver is irrelevant. What you've mostly demonstrated is that that GNOME/GTK is huge. Blaming that on Python doesn't seem to make sense. I'd bet a Perl implemenation of the same programs would be equally huge.