Re: How to get the amount of RAM

Here is one way to find the amount of memory used by the entire Perl process on Unix systems.

me@mybox:~/sandbox
$ perl -e 'while (1) {}' &
[1] 28892
me@mybox:~/sandbox
$ ps -o vsz -p 28892
   VSZ
 77916
[download]

That's 77 MB used in that perl process.

Comment on Re: How to get the amount of RAM Download Code

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Re^2: How to get the amount of RAM by zwon (Abbot) on Nov 09, 2011 at 13:03 UTC
I usually find `rss` and `sz` more useful comparing to `vsz`	[reply] [d/l] [select]
Re^3: How to get the amount of RAM by pvaldes (Chaplain) on Nov 09, 2011 at 16:47 UTC
And for the ram used by perl you can do this also... print `memstat \|grep perl`; you can ask for a specific process also, following the former example print `memstat -p 28892`; __END__ 592k: PID 5273 (/usr/bin/perl) 116k( 108k): /lib/ld-linux.so.2 28892 92k( 84k): [08:01]:258781 28892 44k( 36k): [08:01]:258783 28892 16k( 8k): [08:01]:258784 28892 152k( 144k): [08:01]:258791 28892 1372k( 1356k): [08:01]:258796 28892 1404k( 1396k): /usr/bin/perl 28892 1500k( 0k): [08:06]:242490 28892 -------- 5288k ( 3132k) [download] for memory use inside a specific part of a perl script see also malloc() and memstat() or -DL and warn('!') marks	[reply] [d/l] [select]