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Firefox OS/Performance/Profiling: Difference between revisions
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Firefox OS/Performance/Profiling (view source)
Revision as of 04:45, 10 January 2014
, 10 January 2014→Profiling with the gecko profiler
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= Profiling with the gecko profiler = | = Profiling with the gecko profiler = | ||
Good at: Native stacks (with runtime options) + javascript profiling, low overhead sampling, familiar for gecko developers | |||
See [https://developer.mozilla.org/en-US/docs/Performance/Profiling_with_the_Built-in_Profiler#Profiling_Boot_to_Gecko_%28with_a_real_device%29 these instructions]. Patches are in-flight to get native stacks in profiles, but that's not in default configurations yet. | See [https://developer.mozilla.org/en-US/docs/Performance/Profiling_with_the_Built-in_Profiler#Profiling_Boot_to_Gecko_%28with_a_real_device%29 these instructions]. Patches are in-flight to get native stacks in profiles, but that's not in default configurations yet. | ||
= Profiling with systrace = | |||
Good at: Shows process preemption, shows all calls to instrumented functions, Familiar for android developers | |||
Bad at: Requires configure option, higher overhead | |||
*Better instructions coming*. | |||
Build with '--enable-systrace' and follow [http://developer.android.com/tools/help/systrace.html these instructions for systrace.py]. | |||