My notes from the DevOps Handbook

by Gene Kim, Jez Humble, Patrick Debois, John Willis

Business value of DevOps

• business value of DevOps
• high-performing organizations using DevOps practices outperform non-high performing
  • throughput metrics
  • 30x more frequent code and change deployments
  • code and change lead time -> 200x faster
  • higher reliability metrics
  • production deployment -> 60x success rate
  • mean time to restore service -> 168x faster
  • 2x likely to exceed profitability goals
  • 50% higher/3yrs market cap growth
  • more agile, more reliable
  • higher job satisfaction
  • lower burnout rate
  • 2.2x more likely to recommend as GPTW
  • better infosec -> all stages of development

Companies with highly engaged workers grew revenues 2.5x as much as those with low engagement levels

• scaled developer productivity
• increased number of developers = decreased productivity
  • decreased due to communication, integration and testing overhead
• small teams
  • quickly, safely, independently develop
  • integrate, test, deploy into production
  • when: right cultural norms
  • architecture and practices -> productivity like a startup
• deploys/day, deploys/day/developer
  • low performers: team size 👆 deploys 👎
  • medium: team size 👆 deploys 😐
  • high: team size 👆 deploys 👆 (DevOps)