Make WordPress posts 20-50% faster, in one step. Not needed for 2.8+.
On posts and pages with comments the most timeconsuming part in page creation is translating the smilies to images!
This has now been fixed in WordPress 2.8-bleeding-edge, but if you are not using that (and in production you probably shouldn't, yet!), this plugin gives you the speedup anyway.
It replace smilies_init with a new one that constructs a more efficient regular expression, resulting in 10 ggr faster handling of smilies replacement.
Note: it uses the 'e' modifier to preg_replace to avoid patching any core files. Not all hosts allow this.