How to determine memory usage?

[kj]

I want to determine how much memory my Perl program is using. If
possible, I'd like to measure the memory "high water mark", i.e.
the most memory used by the program at any point during its run.
If this is not possible, I'd settle for some instant memory read
that I can call periodically from within the program.

How should I do this?

Thanks!

kj

 

[xhoster]

I want to determine how much memory my Perl program is using. If
possible, I'd like to measure the memory "high water mark", i.e.
the most memory used by the program at any point during its run.
If this is not possible, I'd settle for some instant memory read
that I can call periodically from within the program.

How should I do this?

On Linux I do this:

my $mem = (`ps -p $$ -o rss `)[1];

Gives size in kb. It is the resident size, so if you are worried being
partially swapped out, read the man page for ps and change rss to whatever
it should be.

Xho