Performance

One of the best websites to look for performance related information is Brendan Gregg. Here are all this Linux Perf related resources.

Theory

• The USE Method

  The Utilization Saturation and Errors (USE) Method is a methodology for analyzing the performance of any system. It directs the construction of a checklist, which for server analysis can be used for quickly identifying resource bottlenecks or errors. It begins by posing questions, and then seeks answers, instead of beginning with given metrics (partial answers) and trying to work backwards.