Performance/ProfilerBackendMobile

Profiler Backend for Mobile

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

Scope

• Windows and Mac are out of scope for this project.
• Due to Android and B2G being based on Linux, Linux may be handled by this project as well.

Duration

TBD

Communication

Communication Type	Mechanism	Audience
General discussion	dev-platform list	devs
Progress reports	Julian Seward's blog	all

Progress Reports

2012
Profiler backend news, 10 April 2013

People

Engineering lead	Julian Seward
Engineering	Benoit Girard, Mike Hommey

Milestones/Iterations/Tasks

TBD