Performance:Home Page

Performance

Mozilla's performance program focuses on improvements to the Gecko platform and the Firefox Desktop and Firefox for Android products.

Projects

Active

Incremental Cycle Collection (CC)

Product impact	[DESKTOP] [MOBILE] [B2G]
Team	Andrew McCreight (lead)
Duration	TBD
Goal	Implement incremental cycle collection to reduce1 cycle collector pauses in the Firefox UI. 1Reduction in cycle collector pauses will be measured with the CYCLE_COLLECTOR_FULL Telemetry probe. The degree of reduction that can be achieved is currently unclear.
Progress reports
Work	bug 850065

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Profiler Backend for Mobile

Product impact	[MOBILE] [B2G]
Team	Julian Seward (lead), Benoit Girard, Mike Hommey
Duration	TBD
Goal	Accurate1, crash-free, deadlock-free, low overhead2 stack unwinding for the SPS profiler for Firefox for Android and Firefox OS. [1]The correct sequence of code return addresses on the stack, ideally without the unwind terminating before it gets back to main(). [2]Average unwind cost of 500 microseconds for a 30-frame backtrace on one core of a 1 GHz Cortex A9</span
Progress reports	Julian Seward's blog
Work

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• Tab Animation: Avi, Tim
• Responsiveness Gecko: Vlad
• Startup: Vlad, Aaron
• Make workers good: David Teller, Paolo
• Addons: Irving
• Talos: Nathan, Avi

On Hold

Shutdown

Hold reason	Resource availability
Product impact	[DESKTOP]
Team	Benoit Girard (lead)
Duration	TBD
Goal	Ensure 95% of Firefox desktop instances shutdown in 3 seconds or less.
Progress reports	Benoit Girard's blog
Work	bug 819063

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Proposals

• Font chromehangs: daggett???
• Non-e10s Plugin Hangs:

Tools

• Telemetry
• jydoop: Efficient and Testable hadoop map-reduce in Python (Introduction from Benjamin Smedberg)
• SPS Profiler
• Buildbot/Talos

Communication

Communication Type	Mechanism	Audience
Announcements	dev-platform list	all
Meetings	meeting time Dial-in: Audio-only conference# 99355 People with Mozilla phones or softphones please dial x4000 Conf# 99355 US/Toll-free: +1 800 707 2533, (pin 4000) Conf# 99355 US/California/Mountain View: +1 650 903 0800, x4000 Conf# 99355 US/California/San Francisco: +1 415 762 5700, x4000 Conf# 99355 US/Oregon/Portland: +1 971 544 8000, x4000 Conf# 99355 CA/British Columbia/Vancouver: +1 778 785 1540, x4000 Conf# 99355 CA/Ontario/Toronto: +1 416 848 3114, x4000 Conf# 99355 UK/London: +44 (0)207 855 3000, x4000 Conf# 99355 FR/Paris: +33 1 84 88 37 37, x4000 Conf# 99355 Gmail Chat (requires Flash and the Google Talk plugin): paste +1 650 903 0800 into the Gmail Chat box that doesn't look like it accepts phone numbers SkypeOut is free if you use the 800 number Vidyo: Performance IRC: #ircchannel Agenda:	all
Meeting summaries	this wiki	all
Micro status	statusbot	devs
Weekly status	Mozilla Status Board	devs

Minutes and Progress Reports

2013
minutes go here

People

list required competencies for people and, once defined, the people working on project. note that not all of these competencies will be required for every project

Project Champion
Program Management	Lawrence Mandel
Product
Engineering	Taras Glek, Vladan Djeric

References

Related Projects

• MemShrink

Archive

Old Projects

• Mobile Startup Shrink
• Startup Performance
• Front-end Performance (i.e., responsiveness)
• Add-on Performance
• Snappy
• Mobile Performance Info

Tools

• Codesighs - a tool which analyzes code and data size.
• Performance:Tools. For measuring performance. Tip o' the propeller-cap to Daniel Roberts (zuperdee@penguinpowered.com) for the pointers.
• Performance:Probes. Project to integrate a system of performance probes into Gecko.

Documentation and Presentations

• Code Footprint Performance:Footprint_Reduction_Techniques explains common bad patterns and how to correct them.
• Performance:Profiling_JuJu. Things you should know about doing profiling. Tips and tricks for some of the tools, and lots of other Good Things To Know.
• Profiling and leak analysis on the Mac.
• Performance:Footprint_Tools. Presentation on footprint tools
• Performance:Startup slides Presentation on general performance tools
• Performance:Leak_Tools. Presentation on memory leaks detection tools
• Mac Performance Tools Presentation on performance tools that work on Mac