there was this article
on memory usage on slashdot few days ago. good read.
to sum up the article, in linux, application uses shared libraries and the shared libraries are being shared among other applications. but it is still only one copy of shared library. ps aux gives you the memory usage on the process itself and the shared library too.
so, try run ps aux to grab your perl proc id.then run pmap -d Proc_ID. the mapped: result at the bottom line is the total memory usage including shared libraries. writeable/private is the one without counting the shared libraries.
my sshd pmap output:
mapped: 3652K writeable/private: 804K shared: 0K
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link
or How to display code and escape characters
are good places to start.