Devops Behavioral Economics: Displayed behavior as compared to reported behavio

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@stahnma 2018

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@stahnma

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@stahnma Hard Hitting Stats • The most common length of a repository name is 17.6 characters • The most common project name is “api”, followed by “terraform”, “infrastructure”, and “web” • After environmental names (e.g dev, test, stage) the most common branch name is “update-readme” • 0.01% of workﬂows have English curse words in the name of the branch

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@stahnma

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@stahnma

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@stahnma MTTR = Time from red to green Delivery lead time = time of workflow? Deployment frequency = how often do you kick off workflows? Change failure rate = workflow failure rate? Mapping Metrics

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@stahnma Fastest Recovery < 1 second MTTR

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@stahnma Fastest Recovery < 1 second MTTR

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@stahnma Put stuff here

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@stahnma Lead Time Some people would cry for that 50p length, question is would it be tears of sorrow or joy Min 50p 95p Max 2.1s 3m27s 28m45s 3.3 days

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@stahnma Lead Time Some people would cry for that 50p length, question is would it be tears of sorrow or joy Min 50p 95p Max 2.1s 3m27s 28m45s 3.3 days

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@stahnma 25 Number of runs per day per project Number of projects building this many  times per day Deployment Frequency

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@stahnma 50p 95p 99p Max workflows per day per project 3 29 74 2488 workflows per org per day 6 85 250 3036 workflows per project on master branch per day 1 13 39 2443 Deployment Frequency

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@stahnma 50p 95p 99p Max workflows per day per project 3 29 74 2488 workflows per org per day 6 85 250 3036 workflows per project on master branch per day 1 13 39 2443 Deployment Frequency

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@stahnma Change Failure Rate Normal failure rate of roughly ~20%

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@stahnma 50p of approvals happen in 3.53 minutes 3% for workﬂows with approval jobs 20% for all workﬂows Manual Approval Jobs

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@stahnma Manual Approval Jobs 50p Length (wthout an approval) : 3m27s 50p Length with Approvals: 14m38s Some workﬂows have more than 1 approval job 3.5% of jobs using manual approvals

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@stahnma Language Fail rate on master Median branches Median users PHP 7.0% 5 2 JavaScript 9.5% 5 2 Python 10.6% 5 2 Ruby 10.9% 9 3 Go 12.4% 4 2 Java 13.1% 4 2

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@stahnma Language Fail rate on master Median branches Median users PHP 7.0% 5 2 JavaScript 9.5% 5 2 Python 10.6% 5 2 Ruby 10.9% 9 3 Go 12.4% 4 2 Java 13.1% 4 2

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@stahnma Open Space? Thank you.