I recently had some memory leak issues with my site. Php wasn't
releasing Simplepie's feed.

Through the process of debugging, I started thinking about the memory
consumption of my site. Which brought up a couple of questions.

1. On my dev system, the default baked app uses around 9MB; on my site
the heaviest page uses around 20MB, and the lightest page uses about
15MB. Is this normal? If not does anybody have any suggestions as to
where to look for optimization techniques?

Default Baked App.
xdebug_memory_usage(): 8,925,408 bytes, 8.51 MB
xdebug_peak_memory_usage(): 9,149,064 bytes, 8.73 MB

My heaviest page (loads simplepie rss + database query)
xdebug_memory_usage(): 21,420,048 bytes, 20.43 MB
xdebug_peak_memory_usage(): 21,660,360 bytes, 20.66 MB

My lightest page (no database calls)
xdebug_memory_usage(): 15,549,928 bytes, 14.83 MB
xdebug_peak_memory_usage(): 15,687,840 bytes, 14.96 MB

2. This memory usage is base on one user connecting to the site. If
two users connect to the site, does the memory usage double, or does
cakephp share any resources? Does anybody have any suggestions as to
how to test how much memory multiple concurrent users take up?

Thanks for any ideas.

James

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