I recently wrote about some issues that we had to diagnose in our production environment. I wanted to take a moment to document an interesting problem that had significant performance impact, had interesting symptoms, and was a rather easy fix once it...

I have not had a chance to post much since I started this blog. My intent was to lay some ground work for building scale-out, high perf systems for medium scale sites. It seems like the best laid plans are always interrupted and my vision for this blog...

One of the first things to do when you have performance issues is to find the low hanging fruit. My definition of low hanging fruit is any change that does not affect business or application logic. For example: Adding a much needed index on a table for...