I suggest to try with PHP 5.4. If it is EE installation please talk to support first as 5.4 is not officially supported yet (not fully tested) but works correctly since 1.13/1.8 based on the feedback i got.

Potential PHP problems with EE 1.13 or CE 1.8
Is there any performance difference between using something like

for(int i = 0; i &lt; 10; i++) { ... }


and

for(int i = 0; i &lt; 10; ++i) { ... }


or is the compiler able to optimize in such a way that they are equally fast in the case where they are functionally equivalent?

Edit:
This was asked because I had a discussion with a co-worker about it, not because I think its a useful optimization in any practical sense. It is largely academic. 
