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2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.




How much RAM is Apache using?

Terminal - How much RAM is Apache using?
ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc
2009-07-31 15:15:08
Functions: echo ps sed tail
How much RAM is Apache using?

Display the amount of memory used by all the httpd processes. Great in case you are being Slashdoted!


There are 4 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

Is this K bite, or K byte or what? :)

Comment by tiagocruz 291 weeks and 6 days ago
man ps


rss RSS resident set size, the non-swapped physical memory that a task has used (in kiloBytes). (alias rssize, rsz).


Comment by ricardoarguello 291 weeks and 6 days ago

See also: http://www.pixelbeat.org/scripts/ps_mem.py

Comment by pixelbeat 291 weeks and 6 days ago

Depends on the version of ps as -C is not always for matching command names or even a valid option.

Comment by drizzt 291 weeks and 6 days ago

or per pid:

ps -ylC httpd | awk '{print $8}' | sed '1d'

Comment by unixx 291 weeks and 6 days ago


# ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc


So... 1719572 KB ~= 1679.26 MB?

# ./ps_mem.py | grep http

Private + Shared = RAM used Program

350.1 MiB + 7.2 MiB = 357.3 MiB httpd (201)

What's correct number? :/

Comment by tiagocruz 291 weeks and 6 days ago

This worked best for me. But I don't have bc installed.

ps -ylC httpd | awk '{print $8}' | sed '1d' | awk '{ total += $1 }END{ print total }'

Comment by rkaneknight 63 weeks and 2 days ago

Your point of view

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