[TYPO3-core] hey lads, a bit of news from the internals

[David Coallier]

On 25/03/2008, ries van Twisk <typo3 at rvt.dds.nl> wrote:
> Anything on what was changed to get this speed up??
>  I would think Array handling... but that is just a wild guess....
>

We are working on a new language parser/scanner and are replacing the
old one with the new one made by Marcus Boerger (re2c scanner).

This improved the speed considerably. So yeah to give you a quick list:

  . Replaced flex based scanner with re2c based scanner.
  . Added garbage collector.
  . Improved PHP binary size and startup speed with GCC4 visibility control.
  . Improved engine stack implementation for better performance and stability.
  . Improved memory usage by moving constants to read only memory.
  . Changed exception handling. Now each op_array doesn't contain
    ZEND_HANDLE_EXCEPTION opcode in the end.
  . Optimized require_once() and include_once() by eliminating fopen(3) on
    second usage.
  . Optimized ZEND_FETCH_CLASS + ZEND_ADD_INTERFACE into single
    ZEND_ADD_INTERFACE opcode

and a whole bunch of performance fixes in many overused functions.

Enjoy all :)

D