how to calculate a process's memory?

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i calculate system memory usage by /proc/meminfo

(MemFree + Buffers + Cached) / MemTotal

the result is as same as I saw in System Monitor.

But how to calculate a process's memory?

e.x:
/proc/22062/statm ----> 83561 4533 3331 58 0 1042 0

System Monitor ----> 6.4 MiB

I wonder how System Monitor get the 6.4 MiB.

Please tell me a right way to calculate process's real memory usage.

Posted 24-Aug-14 22:59pm

niujian2358

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niujian2358 · Answer 1 · 2014-08-27T18:50:00

Solution 2

/proc/<pid>/statm

(rss - shared)*4/1024

Posted 27-Aug-14 18:50pm

niujian2358