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I'm trying to solve a perf issue in my Android library. I use androidx.tracing to add trace events in system trace. My question is that should I use trace() or traceAsync() for a suspend function?

suspend fun foo() = traceAsync("foo", 0) { bar() }
suspend fun bar() = ...

According to the source code, trace() is a wrapper of beginSection/endSection, which need to execute on the same thread, it seems obvious I need to use traceAsync().

However, Gemini insists trace() is the right approach, on the other hand, ChatGPT/Claude/Grok said traceAsync() is correct.

I cannot find guidance from official document, and cannot find much references from public repos. Does anyone have experience which one I should use and why?

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