PHP Performance problem after upgrade to 5.1.6 or 5.2.0

Miroslav Lachman 000.fbsd at
Sat Feb 3 19:40:26 UTC 2007

Thomas Hurst wrote:

> * Miroslav Lachman (000.fbsd at wrote:
>>I have performance problem with PHP after upgrading from PHP 5.1.4 to
>>newer version regardles if newer version is 5.1.6 or 5.2.0. I tested
>>both with same result.
> Every time I upgrade PHP and see a performace regregression like this,
> it's been a result of forgetting to update eAccelerator, or whatever
> flavour of the year PHP bytecode cache is at the time.
> If you're sure your cache is loading (i.e. it shows up in phpinfo()
> and isn't logging errors on startup), you might find it useful to grab
> backtraces from busy processes (the source tarball includes a .gdbinit
> that allows you to grab PHP backtraces too, provided you're compiling
> with debug symbols enabled) to see where they might be spending their
> time.

I am not using any PHP bytecode cache. About one year ago I tried 
eAccelerator which causes Apache freeze. Now I installed ZendOptimizer 
and load increased!! by 50% :o(

Miroslav Lachman

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