Performance

Performance

The Firefox performance team focuses on improvements to the Gecko platform and Firefox across desktop and mobile. You can find us on #perf:mozilla.org on Matrix and #perf on Slack.

The team:

• Performance Engineering
• Performance Test Engineering
• Performance Tools Engineering

Measuring & improving Firefox performance

Write-ups

• Firefox performance knowledge-base
• How to evaluate the performance of your new feature
• Information on Talos automatic performance tests:
  • What to do when your check-in causes a Talos regression
  • Additional reading: How the Automation Team does performance sheriffing
• Avoid SQLite in your next Firefox feature

Tools

• Telemetry:
  • Telemetry dashboard
  • Adding a new Telemetry probe
• SPS Gecko Profiler
  • Reporting a Performance problem
• Buildbot/Talos
• MozGTestBench
  • Write low level microbenchmarks using GTest
• xperf
  • Tracing VirtualAlloc With Xperf
• Statuser: Restartless Firefox extension for as-it-happens hang monitoring.

Android Front-end Performance group

The Android Front-end Performance group focus on improvements to performance of the JVM portions of Android applications as opposed to the platform performance group that focuses on platform (i.e. Gecko) performance.

Performance on Fenix

• Performance: How to get started on Fenix
• Contact us on Matrix: #perf-android-frontend:mozilla.org
• Project planning: GitHub Project Board
  • Filtered issues for onboarding new team members
• Mozilla-internal resources (we're working to make this more open!)

Performance Bug Triage Guideline

• Project Flags And Keywords: Bugzilla project flags and keywords that are used to triage performance bugs