Gzip: The fastest method?

[Gamingforce]

What's the fastest form of Gzip you can have on your web server?

Is it via the php.ini line:
zlib.output_compression = Off

mod_gzip

or the php function vBulletin uses?

[eva2000]

fastest for whole server i.e. html and php pages or just vB's php pages ?

if for just vB then vB's gzip if for entire server then mod_gzip

[Gamingforce]

It was for all PHP / HTML files. Thanks for your help, I guess I'll be going with mod_gzip. Too bad there is no version for Apache 2.