Turck MMCache is a PHP Accelerator, Optimizer and Encoder. It increases performance of PHP scripts by caching them in compiled state, so that the overhead of compiling is almost completely eliminated. Also it uses some optimizations for speed up of PHP scripts execution. Turck MMCache typically reduces server load and increases the speed of your PHP code by 1-10 times. It has been tested with PHP 4.1.0 - 4.3.1 under Linux and Windows with Apache 1.3 and 2.0.
This is a bugfix release. The bug with too many open files was fixed. Low level locking on x86 was disabled by default.