This blog..

.. is about optimisation that isn't evil.

Faster webpages with mod_pagespeed

Google announced mod_pagespeed, a module for Apache that changes the content to automatically follow a lot of well-known web application performance optimization guidelines. At the documentation, the available filters are explained in detail. Bonus: There’s also a section in the documentation about the potential risks of every filter.

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yum install iostat

Sometimes you’re working on a machine and miss a certain tool. In my case, it was iostat I missed on a Red Hat server. iostat is a useful tool for a quick look at the I/O statistics of a unix/linux based machine.
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Use different servers for different content

Most of the content of web pages can be grouped in two types: Static and dynamic content.

These content types have different requirements on the server software.
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