Wordpress - Make it faster

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Wordpress - Make it faster

Aimbox nerd

General WordPress Pageload depends on loads of plugins and such and in his time with WordPress ( about 6 months now ), I always felt that WP several sluggish average load on the site .
Mysql processing pretty decent from what I can tell from my tests , but parsing the content is what takes the most time. Since I do not want to change the core files , I returned to the plug-ins , such as WP-Cache, which work , but are not ideal .
ps I know the speed depends on a million factors , but I'm running p4 3 GHz, 2 GB RAM , Apache 2 cars and even with WP default install I can not get apache bench to give more than 5 or 6 requests per second. This = slow.

URL (where the idea was taken from):
http://wordpress.org/extend/ideas/topic/make-it-faster

Bring to life!