debugTracePostFrameCallbacks top-level property
getter/setter pair
Record timeline trace events for post-frame callbacks.
When this flag is set to false (the default), the developer timeline records when post-frame callbacks are running, but it does not tell you any information about how that time is spent within specific callbacks:
When this flag is set to true, timeline events will be recorded for each post-frame callback that runs, like so:
Implementation
bool debugTracePostFrameCallbacks = false;