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Support timeline can be enabled in release mode #14521
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yuanhuihui
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Enable SUPPORT_TIMELINE macro, capture systrace in release mode as below:
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chinmaygarde
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Dec 17, 2019
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relation to flutter/flutter#47771 |
filmil
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Mar 13, 2020
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The timeline function needs ServiceIsolate to cooperate with it, so it will be controlled by the SUPPORT_TIMELINE macro and FLAG_support_service, but systrace does not require ServiceIsolate to work properly.
SUPPORT_TIMELINE macro should be used to determine whether to enable systrace in release mode. For android, systrace is supported in release mode by default. When using a hybrid project of android native and flutter, we can control the SUPPORT_TIMELINE macro through a script to decide whether to enable systrace in release mode, which is used to assist in analyzing performance issues in production.
endless_trace_buffer, trace_startup, trace_skia, trace_systrace, these trace-related parameter assignments should be put together to initialize more clearly. By default, SUPPORT_TIMELINE is turned off, so it will not affect the current logic.
I have submitted PRs to better support systrace，as below: