Tutorvo

Startup Time Percentiles: p50 & p90 Cold Start

Lesson 4 of 815 minLab

This lesson is part of the course

In this lesson

You take 24 measured launches of Ridgeway, compute the p50 and p90 of cold and warm starts, the share of slow cold starts and check the p90 against the budget.

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Lessons in this course

  1. Crash-Free Users & Crash-Free SessionsLab15 min Locked
  2. Crash Rate per 1,000 Sessions by VersionLab15 min Locked
  3. ANR & Freeze Rate by Device SegmentLab15 min Locked
  4. Startup Time Percentiles: p50 & p90 Cold StartLab15 min Locked
  5. Top Crash Clusters: the Pareto ChartLab15 min Locked
  6. Staged Rollout: Continue, Wait or HaltLab15 min Locked
  7. Regression Detection: Is the New Version Really Worse?Lab15 min Locked
  8. The Stability Dashboard: Budgets, Status & Red FlagsLab15 min Locked