The Pith of Performance

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• The Pith of Performance

  Possibly pithy insights into computer performance analysis and capacity planning based on the Guerrilla <a href="http://www.perfdynamics.com/books.html">series of books</a> and <a href="http://www.pe...

• The Pith of Performance: 2020

  This is really more of a note-to-self but it may also be useful for other readers. Converting between various time zones, including UTC time, is both a pain and error-prone. A better solution is to ...

• The Pith of Performance: November 2020

  As shown in the above diagram, any modern computer system can be thought of as a directed graph of individual buffers where requests wait to be serviced at some kind of shared computational resource, ...

• The Pith of Performance: Response Time Percentiles for Multi-server Applications

  In a previous post , I applied my rules-of-thumb for response time (RT) percentiles (or more accurately, residence time in queueing theory ...

• The Pith of Performance: Monitoring CPU Utilization Under Hyper-threading

  The question of accurately measuring processor utilization with hyper-threading (HT) enabled came up recently in a Performance Engineering G...

• The Pith of Performance: Going Beyond Florence Nightingale's Data Diagram: Did Flo Blow It with

  In 2010, I wrote a short blog item about Florence Nightingale the statistician , solely because of its novelty value. I didn't even bother...