December 18, 2012
deviation

Deviant Deviation

A few years ago, I worked a performance project.  You probably know the type:  Customers were upset, executives were upset, technical staff were asking for specific direction (and not getting much) … nobody was happy. The code was already in production, and there was no obvious ‘roll it […]
December 9, 2012
system_sm

(Just Starting to) Analyze Performance Data

If you’ve done any performance testing, or even seen a demo, you are probably familiar with the “big line graph” that is created as the test runs. A Typical Response Time Graph The typical scenario is simple:  Have the load tool start with one simultaneous user running a script.  Then […]