Outrageous memory usage with cElementTree

Shahms King shahms at shahms.com
Fri Apr 7 20:38:23 UTC 2006


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I was trying to figure out why my small python application was using
outrageous amounts of memory on FC5 and managed to track it down to a
single anonymous rw mapping that's 32380K.  It only gets mapped after
importing cElementTree but I can't figure out why.  It doesn't happen
under FC4 or FC3.  Is this memory actually used or is it another
artifact of Linux's often questionable RSS statistics?  32MB is a lot of
memory to be using for no apparent reason, especially as it is
per-process unshared memory.  It's particularly vexing using mod_python
and kid (which uses cElementTree, if available) as it means that every
single httpd process uses ~50MB base memory, which is ridiculous.


- --
Shahms E. King <shahms at shahms.com>
Multnomah ESD

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