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Bottleneck analysis - Devopsdays Silicon Valley 2013

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Lightning talk about the problems of efficiently feeding drinks to conference attendees

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Bottleneck analysis - Devopsdays Silicon Valley 2013

  1. 1. Bottle delivery dataInterval Response Time Throughput10 3.1 2220 1.2 4130 7.9 32… … …
  2. 2. Grab some data (using R)beer <-read.csv(url("http://staash.com/beer_operations.csv"))response <- beer[,2]plot(response, type="S",ylab=”response”)
  3. 3. Bottle delivery response over time
  4. 4. Analysis> summary(response)Min. 1st Qu. Median Mean 3rd Qu. Max.1.909 2.550 2.820 3.086 3.214 67.680> quantile(response,c(0.95,0.99))95% 99%4.149556 6.922115> sd(response)1.941328> mean(response) + 2 * sd(response)6.968416
  5. 5. chp(throughput,response,q=1.0)(See http://perfcap.blogspot.com/search?q=chp)
  6. 6. Scalability plots generated using appdynamics.com
  7. 7. Well behaved Lock ContentionOscillating, thread shortageLooping autoscaledBottlenecks
  8. 8. http://perfcap.blogspot.com/search?q=chp@adrianco

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