How to get the memory usage of a process in Mac OS (and in iOS)?

Asked Jul 30 '13 at 20:42

Active Jul 31 '13 at 00:07

Viewed 1,994 times

In Linux, the kernel exposes various per-process memory counters through /proc/[pid]/statm including

total program size
resident set size
shared pages
text (code)
data/stack
library
dirty pages

What is the equivalent of such thing in Mac OS (and iOS)? I am aware of the sysctl interface, but it does not appear to provide the equivalent information.

I have looked at the "top" output (invoked by non-root user) on Mac OS and it contains things like

RPRVT - amount of resident memory consumed by our heap allocations
RSHRD - amount of resident shared memory (shared libraries)
RSIZE - ~equals RPRVT + RSHRD
VSIZE - the total amount of memory consumed by the process (resident and paged mem combined)

I wonder where such information is retrieved. Are there any additional counters (similar to the Linux ones) that are not displayed by top.

What about iOS?

EDIT: note that I'm looking for the per-process memory usage counter (not global system ones)

Thanks!

edited Jul 31 '13 at 00:07

asked Jul 30 '13 at 20:42

zack

Instruments + activity monitor? – Justin Meiners Jul 30 '13 at 20:47
See [this answer](http://stackoverflow.com/a/7990532/1693173) – progrmr Jul 30 '13 at 21:01
To Justin Meiners: I do not have root and cannot do any instrumentation of other apps. – zack Jul 31 '13 at 00:07
To progrmr: I am not only interested in the memory usage of my own process, but also other processes running in the system – zack Jul 31 '13 at 00:08

How to get the memory usage of a process in Mac OS (and in iOS)?

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