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    <p>For Unixes (Linux, Mac OS X, Solaris) you could also use the <code>getrusage()</code> function from the standard library module <code>resource</code>. The resulting object has the attribute <code>ru_maxrss</code>, which gives <em>peak</em> memory usage for the calling process:</p> <pre><code>&gt;&gt;&gt; resource.getrusage(resource.RUSAGE_SELF).ru_maxrss 2656 # peak memory usage (bytes on OS X, kilobytes on Linux) </code></pre> <p>The <a href="http://docs.python.org/library/resource.html#resource-usage" rel="noreferrer">Python docs</a> aren't clear on what the units are exactly, but the <a href="http://developer.apple.com/library/mac/#documentation/darwin/reference/manpages/man2/getrusage.2.html" rel="noreferrer">Mac OS X man page</a> for <code>getrusage(2)</code> describes the units as <em>bytes</em>. The Linux man page isn't clear, but it seems to be equivalent to the information from <code>/proc/self/status</code>, which is in <em>kilobytes</em>.</p> <p>The <code>getrusage()</code> function can also be given <code>resource.RUSAGE_CHILDREN</code> to get the usage for child processes, and (on some systems) <code>resource.RUSAGE_BOTH</code> for total (self and child) process usage.</p> <p><code>resource</code> is a standard library module.</p> <p>If you only care about Linux, you can just check the <code>/proc/self/status</code> file as described in a <a href="https://stackoverflow.com/questions/897941/python-equivalent-of-phps-memory-get-usage">similar question</a>.</p>
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    1. POTotal memory used by Python process?
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    1. COOkay, will do. I wasn't sure if SO had a process for merging questions or what. The duplicate post was partly to show people there was a standard library solution on both questions... and partly for the rep. ;) Should I delete this answer?
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    2. COOh, it appears I can't flag duplicates with my current rep - the "flag" link under questions doesn't even appear for me.
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    3. CONow you've got more than enough rep to flag :)
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