Using the key word "Control Chart" I have found in the www.CMG.org knowledge base a few very old CMG papers with some discussions about using classical SPC approach against computer performance data.
Here is the first one:
Fine-Grain Analysis (FGA): A Methodology for Analyzing Intermittent Performance Problems
By Robert Berry & Jeffrey Hedglin
The paper describes what Mainframe metrics are good to use for Control Charting. They should be two types - a. Performance Quality Measure - sounds like modern KPI... (e.g. response time); b. System performance metrics (e.g. CPU queue length). Then the paper describes how the intermittent problem could be detected just by plotting SPC Control Charts for both type of metrics in sync (correlated).
I use that approach a lot now, but using MASF type of Control chart and specifically my IT-Control Charts. BTW I am writing now my next CMG paper and plan to add there a couple very persuasive examples of correlated IT-Control Charts, such as, number of concurrent user LOGONS vs. number of Ph. CPUs used by LPARS on some p770 AIX frame....
To be continued....
This blog relates to experiences in the Systems Capacity and Availability areas, focusing on statistical filtering and pattern recognition and BI analysis and reporting techniques (SPC, APC, MASF, 6-SIGMA, SEDS/SETDS and other)
I have got the comment on my previous post “ BIRT based Control Chart “ with questions about how actually in BIRT the data are prepared for ...
Your are welcome to post to this blog any message related to the Capacity, Performance and/or Availability of computer systems. Just put you...
Thursday, April 5, 2012
Prehistory of SEDS: Virtual CMG'90 Trip Report about Control Chart Usage. Part 1.
Posted by Igor Trubin at 4:33 PM
Labels: CMG, CMG'90, Control Chart, process-control chart, SEDS, SPC
He started in 1979 as IBM/370 system engineer. In 1986 he got his PhD. in Robotics at St. Petersburg Technical University (Russia) and then worked as a professor teaching CAD/CAM, Robotics for 12 years. He published 30+ papers and made several presentations for conferences related to the Robotics and Artificial Intelligent fields. In 1999 he moved to the US, worked at Capital One bank as a Capacity Planner. His first CMG.org paper was written and presented in 2001. The next one, "Exception Detection System Based on MASF Technique," won a Best Paper award at CMG'02 and was presented at UKCMG'03 in Oxford, England. He made other tech. presentations at IBM z/Series Expo, SPEC.org, Southern and Central Europe CMG and ran several workshops covering his original method of Anomaly and Change Point Detection (Perfomalist.com). Author of “Performance Anomaly Detection” class (at CMG.com). Worked 2 years as the Capacity team lead for IBM, worked for SunTrust Bank for 3 years and then at IBM for 3 years as Sr. IT Architect. Now he works for Capital One bank as IT Manager at the Cloud Engineering and since 2015 he is a member of CMG.org Board of Directors. Runs UT channel iTrubin
Subscribe to: Post Comments (Atom)
Is the subject connected with your profesыional sphere or maybe is it more about your leisure and free time?ReplyDelete