PHP compiler - HipHop performance

Question

I have downloaded HipHop for my website, I am going through various web links which are suggesting that performance will improve 3-6 times. However I don't know the Stability of the HipHop.

Please provide your inputs so that I can decide to use HipHop.

Comments

Well. HipHop runs the backend of facebook.com AFAIK. Howbout that stability. ...

Answer 1

When I tried it I was amazed by the performance impact.
Just create yourself a PHP file that does 100.000 calculations and
compare the php execution vs. the native compiled one. That is awesome!

The drawback is, that hiphop does not support every php extension and
that it really takes some time to compile a really big framework.
If you have some code that you want to speed up and it can seperated
from the rest, then create a smaller module out of it and compile that.

Or think about creating own PECL extensions.

Answer 2

I looked into HipHop once, and I decided not to use it, I felt that there are other ways of improving performance. Having said that, it really depends on what your running IE wordpress, phpbb, mybb etc.

I rather install some cache plugin for wordpress and install something like xcache but that just me though.