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TaskTracer: Difference between revisions
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→How to use Task Tracer: Add addition description about the use of GeckoProfiler.
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(→How to use Task Tracer: Add addition description about the use of GeckoProfiler.) |
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* Where it is dispatched from. | * Where it is dispatched from. | ||
== How to use | == How to use TaskTracer == | ||
=== mozilla-central === | === mozilla-central === | ||
1. Build and flash (built-in) | 1. Build and flash (built-in) | ||
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./profile.sh start -f tasktracer | ./profile.sh start -f tasktracer | ||
You can still combine the "tasktracer" feature with other supported flags of "start" command. For example, <code> ./profile.sh start -f tasktracer,js,leaf -i 50</code> will start profiling on all processes with tasktracer and default features, and longer the sampling interval to 50 milliseconds. | |||
3.1. Capture current | Please note that because TaskTracer is design to record the correlation of tasks between threads and processes, enabling this feature will start profiling on all processes, which says, later commands such as <code>./profile.sh start -p aProcessName</code> will be invalid. | ||
3. Get results | |||
3.1. Capture current results | |||
./profile.sh capture | ./profile.sh capture | ||
3.2. Get | In additional to the original results of GeckoProfiler, turning on <code>-f tasktracer</code> should find a section of TaskTracer data inserted into each output files. The first recording period is from the time of <code>./profile.sh start</code> till the time of first <code>./profile.sh capture</code>, the next recording period is then from the time of this <code>capture</code> till the next <code>capture</code>...and so on. | ||
3.2. Get TaskTracer Converter | |||
git clone https://github.com/ginayeh/task-tracer-converter -b v2.0 | git clone https://github.com/ginayeh/task-tracer-converter -b v2.0 | ||
3.3. Convert | 3.3. Convert results | ||
mv profile_*.txt task-tracer-converter/log/ | mv profile_*.txt task-tracer-converter/log/ | ||
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=== v1.3T === | === v1.3T === | ||
1. Get the source code of | 1. Get the source code of TaskTracer. | ||
git clone https://github.com/shellylin/gecko-dev/tree/tt-1.3t | git clone https://github.com/shellylin/gecko-dev/tree/tt-1.3t | ||