I am concidering making a switch from IIS 7.5 to Apache.
I have already tried running PHP (FastCGI) on nginx but the performance was extremely bad compared to IIS 7.5
Because I am unable to find performance benchmarks (PHP) between IIS and Apache on Windows, I am asking you for your experience/feedback.
I use WinCache on IIS, and I have used eAccelerator on Apache. What about APC?
The switch will be for performance gain only.
Update: I have tried running Apache with mod_php & mod_apc. But the website felt noticeably slower than with IIS. Is this normal? The application is fully APC supported.
APC is going to be included in PHP 6, and I'd guess it has been chosen for good reason :) allthough it performs very well, but not as good as eAccelerator. And it has compatability issues with Zend Optimizer.