How much RAM is Apache using?

ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc
Display the amount of memory used by all the httpd processes. Great in case you are being Slashdoted!

2009-07-31 15:15:08

What Others Think

Is this K bite, or K byte or what? :)
tiagocruz · 667 weeks and 4 days ago
man ps ... rss RSS resident set size, the non-swapped physical memory that a task has used (in kiloBytes). (alias rssize, rsz). ...
ricardoarguello · 667 weeks and 4 days ago
See also:
pixelbeat · 667 weeks and 4 days ago
Depends on the version of ps as -C is not always for matching command names or even a valid option.
drizzt · 667 weeks and 4 days ago
or per pid: ps -ylC httpd | awk '{print $8}' | sed '1d'
unixx · 667 weeks and 4 days ago
Estrange: # ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc 1719572 So... 1719572 KB ~= 1679.26 MB? # ./ | grep http Private + Shared = RAM used Program 350.1 MiB + 7.2 MiB = 357.3 MiB httpd (201) What's correct number? :/
tiagocruz · 667 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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