Interesting talk from Martin Thompson on performance metrics and how averages lie.

Topics covered -

• Service time and utilisation
• Probability theory and queues
• System time / utilisation levels have disproportionate
• The perils of 80% utilisation and beyond
• Coordinated omission (Gil Tene / Azul systems)

Links

• Azul Systems - How Not to Measure Latency
• http://www.todaysoftmag.com/article/756/how-not-to-measure-latency
• Garbage collection in .NET