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Firefox/Projects/Mobile Startup Shrink: Difference between revisions
Firefox/Projects/Mobile Startup Shrink (view source)
Revision as of 22:06, 20 July 2011
, 20 July 2011→Resources
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* [[Firefox/Projects/Startup_Time_Improvements|Startup Performance]]: Somewhat recent startup time tracking project | * [[Firefox/Projects/Startup_Time_Improvements|Startup Performance]]: Somewhat recent startup time tracking project | ||
* [http://blog.mozilla.com/tglek/2011/05/13/firefox-telemetry/ Taras's telemetry blog post] | * [http://blog.mozilla.com/tglek/2011/05/13/firefox-telemetry/ Taras's telemetry blog post] | ||
== Basic startup stats in your console == | |||
Enable the preference: | |||
devtools.errorconsole.enabled | |||
You will see something like | |||
[timing] main: 488ms # When XRE_Main is called. Everything before this is | |||
# loading libxul, static initializers, etc. | |||
[timing] firstPaint: 1447ms # The first paint to the screen (most important one!) | |||
[timing] sessionRestored: 1178ms | |||
These numbers are all measured from startup. In this example, the first paint is 1447 ms from startup, not from main. | |||