DevOps & Software Delivery in a Global Pandemic
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“
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performance described vs performance derived
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Jeremy Meiss Director, DevRel & Community
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2 million 44,000+ 160,000+ 1,000x jobs/day orgs projects Larger than surveys
- 40k in 2019
- 150k in 2019 6
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Four classic metrics Deployment frequency Lead time to change Change failure rate Recovery from failure time
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CI/CD Benchmarks for high performance Throughput At will Duration <10 minutes Success Rate
90% Mean Time to Recovery <1 hour
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The Data
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Photo by: Matthew Henry
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Throughput
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Most teams are not deploying dozens of times per day
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Image by Pawan Kolhe from Pixabay
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Duration
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Photo by Lukas from Pexels
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Success Rate
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Photo by Brett Sayles from Pexels
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Recovery Time
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Recovery Time
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Recovery Time
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The Insight
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2020 has been a year.
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Throughput
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Throughput in a global pandemic
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Peak Throughput was in April 2020
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Duration
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Duration in a global pandemic
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Hypothesis: more tests written in March, driving up Duration. In April, a concerted effort on optimization
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Success rate
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Success rate in a global pandemic
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Success rate in a global pandemic
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Success rate in a global pandemic
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Hypothesis: people working hard on core business stability
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Recovery Time
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Recovery time in a global pandemic
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Hypothesis: few distractions* working at home
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Important to set targets Throughput The average number of workflow runs per day Duration The average length of time for a workflow to run Mean time to recovery The average time between failures & their next success Success rate The number of successful runs / the total number of runs over a period of time Median CircleCI Developer Suggested Benchmarks 0.7 times/day Merge on any pull request < 4 minutes 5-10 minutes < 56 minutes Under 1 hour 80% for default branch 90% or better on default branch
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Things that make you go 🤔
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Branch information
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No significant change in default branch from master… yet.
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Success Rate on default branch higher than on non-default
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Duration on default branches faster at every percentile
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Recovery Time lower on default branches at every percentile
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What development practices definitively work?
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Success Rate does not correlate with company size
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Duration is longest for teams of one
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Recovery Time decreases with increased team size (up to 200)
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Performance is better with >1 contributor
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Software is collaborative
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Language by Throughput
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Language by Success Rate
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Language by fastest TTR
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Language by shortest duration
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“Don’t deploy on Friday” is not a thing.
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“Don’t Deploy on Friday” is not a thing ○ 70% less Throughput on weekends ○ 11% less Throughput on Friday (UTC) ○ 9% less Throughput on Monday (UTC)
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Full Report https://circle.ci/ssd2020
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Thank you.
