Systrace doesn't produce detailed JS Thread calls info

[tadas-subonis]

I've tried using systrace like this:

C:\Python27\python.exe systrace.py --time=15 -o D:\tmp\traces\trace7.html sched gfx view -a com.insasd

but it doesn't show anything for mqt_js thread, apart that it is busy. I wasn't able to see detailed JS calls as shown on the docs. Debug mode is enabled.

Also, I've tried adding

import {View, StyleSheet, BackAndroid, StatusBar, ActivityIndicator, Systrace} from "react-native";
Systrace.setEnabled(true);

but it throws exception:

E/ReactNativeJS(30175): undefined is not a function (evaluating 'global.nativeTraceEndSection(TRACE_TAG_REACT_APPS)')
I/ReactNativeJS(30175): 'Failed to print error: ', 'undefined is not a function (evaluating \'global.nativeTraceBeginSection(TRACE_TAG_REACT_APPS,profileName,args)\')'
E/ReactNativeJNI(30175): Got JS Exception: TypeError: undefined is not a function (evaluating 'global.nativeTraceEndSection(TRACE_TAG_REACT_APPS)') (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:18511)
E/ReactNativeJNI(30175): Got JS Stack: endEvent@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:18511:29
E/ReactNativeJNI(30175): loadModuleImplementation@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:135:18
E/ReactNativeJNI(30175): guardedLoadModule@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:70:32
E/ReactNativeJNI(30175): _require@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:54:18
E/ReactNativeJNI(30175): http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:1490:21
E/ReactNativeJNI(30175): loadModuleImplementation@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:127:8
E/ReactNativeJNI(30175): guardedLoadModule@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:63:37
E/ReactNativeJNI(30175): _require@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:54:18
E/ReactNativeJNI(30175): global code@http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:12
E/unknown:React(30175): Exception in native call from JS
E/unknown:React(30175): com.facebook.react.devsupport.DebugServerException: TypeError: undefined is not a function (evaluating 'global.nativeTraceEndSection(TRACE_TAG_REACT_APPS)') (http://localhost:8081/index.android.bundle?platform=android&dev=true&hot=false&minify=false:18511)

I am using WIndows 10 with Android

[charpeni]

@facebook-github-bot label Icebox

[charpeni]

Hi there! This issue is being closed because it has been inactive for a while.

But don't worry, it will live on with ProductPains! Check out its new home: https://productpains.com/post/react-native/systrace-doesnt-produce-detailed-js-thread-calls-info

ProductPains helps the community prioritize the most important issues thanks to its voting feature.
It is easy to use - just login with GitHub.

Also, if this issue is a bug, please consider sending a PR with a fix.
We're a small team and rely on the community for bug fixes of issues that don't affect fb apps.

[charpeni]

@facebook-github-bot close

[facebook-github-bot]

@charpeni tells me to close this issue. If you think it should still be opened let us know why.