Memory Leak, or Coding problem ?

[eluser]n8m[/eluser]
Hi all,

while testing my Application, I just stumbled over something. I used the profiler to see how many memory my application will need. After a bit of navigating on this page, I found out that the memory usage constantly began to raise. Since this page will be used by many (many) people, this can be a problem.

What I do on this page is open and parse xml files with simplexml and the usual usermanagement stuff with a database. It would be nice if someone can tell me if this has something to do with my programming, or if this is something dependend on Codeigniter.

Thanks in advance,
n8m