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Firefox OS/Performance/App Performance Validation: Difference between revisions
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Firefox OS/Performance/App Performance Validation (view source)
Revision as of 21:06, 25 February 2014
, 25 February 2014→8. Compositor FPS
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'''Platform Contact''': Graphics | '''Platform Contact''': Graphics | ||
'''What does it mean''': | '''What does it mean''': | ||
Check that the generated layer tree can composited by the GPU every frame. | |||
'''Verification Steps''': | '''Verification Steps''': | ||
* Turn on 'Frames per second' from the Developer HUD. | |||
* Watch the left most FPS counter during animations and scrolling. This number should remain very close to the refresh rate of the display (~60 FPS for most devices). Large layer transformations (check with layer border/layers.dump) will cause a dip in this counter. | |||
and | |||
* Turn on 'Frames per second' from the Developer HUD. | |||
* Set layers.offmainthreadcomposition.frame-rate to 0. | |||
* Watch the left most FPS counter during idle at various stage of your app. This number should remain very close to the refresh rate of the display (~60 FPS for most devices). There should be little to no dips below 60 FPS here. | |||
== 9. Memory usage == | == 9. Memory usage == | ||