Engineering Effectiveness Newsletter (June 2022 Edition)

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Andi-Bogdan Postelnicu

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Jul 7, 2022, 11:03:31 AMJul 7
to dev-pl...@mozilla.org, firef...@mozilla.org

Welcome to the June edition of the Engineering Effectiveness Newsletter! The Engineering Effectiveness org makes it easy to develop, test and release Mozilla software at scale. See below for some highlights, then read on for more detailed info!


Highlights

  • Calixte landed the first functionalities (writing text, drawing) to perform editing of PDFs, with some improvements contributed by Jonas.

  • A new “Power Use” experimental feature has been added to the Firefox Profiler. On Apple Silicon or machines running Windows 11 on Intel CPUs, it can be enabled from about:profiling to get a very fine grained understanding of how Firefox uses power.

Contributors

  • Federico Mena Quintero (federicomenaquintero)

Detailed Project Updates

Bugzilla and Bugbug

Build System and Mach Environment

CI and Treeherder

  • Autoclassification enabled for a subset of test suites and failure types

  • Eva implemented autobackfill and autoretrigger functionality

  • Joel added support for running tests in CI with a conditioned profile (Bug 1769097)

  • Desktop CI tasks run with fission by default, no more “-fis” and “-e10s” (Bug 1750399)

  • Valentin Rigal upgraded the performance alerts table to prevent hitting the limit of alerts it can store

Crash Management

  • The crash reporter dialog now suggests sending crash reports by default on Linux (it had been accidentally disabled long ago).

Fuzzing and Sanitizers

Lint, Static Analysis and Code Coverage

OS Integration and Security

  • VA-API hardware accelerated video decoding is now supported on Linux. It is not default-enabled yet due to lack of CI coverage.

  • We now detect Windows installations where the user has broken Exploit Protection settings and disable win32k lockdown in that case.

  • Enabled "-ftrivial-auto-var-init" for code in editor component. Shipped in 102.


PDF.js

Power use

  • A new “Power Use” experimental feature has been added to the Firefox Profiler. On Apple Silicon or machines running Windows 11 on Intel CPUs, it can be enabled from about:profiling to get a very fine grained understanding of how Firefox uses power.

Release Engineering and Management

  • Fx-Trains got a performance boost as well as various improvements to its home page for releases in flight, including now data for ESR.


Thanks for reading and see you next month!

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