How to minify Wordpress output html code on single line?

i need to speed up my Wordpress blog. I searched around the web, but no success. I want to minify or compress my output html code on one(single) line, like Matt Cutt's blog. I tried W3TC, WP Minify and many others, but without result. I need script, plugin, function or something that works.

Thanks in advance.

Solution

This is really not the best way to speedup your site. If you do it in the template it make the files unreadable and hard to maintain for less than 1% speedup. If you do it with a plugin that process the output, it will slow down the render.

Make sure :

You use as few plugins as possible, for example it's much faster to copy tracking code (google analytics or such) in footer.php than using a plugin
You have compiled, cleaned, minifyied CSS and JS that is on your server and properly compressed files.
You use CDN for all files that are on CDN like JQuery on https://developers.google.com/speed/libraries/devguide
Put mod_expire on your server and set expire date for media files far in future with .htaccess . This will prevent browsers from checking if files have changed (all the 200 status code you see in network traffic analysis)
Cache content using WP supercache or similar plugin
Install APC cache with enough memory (at least 32M for a single WP installation)