"Start/Stop Sampling Profiler" not working on Android

[dannycochran]

Is this a bug report?

Yes

Have you read the Contributing Guidelines?

Yes

Environment

Environment:
OS: macOS High Sierra 10.13.3
Node: 6.10.3
Yarn: 1.3.2
npm: 3.10.10
Watchman: Not Found
Xcode: Xcode 9.2 Build version 9C40b
Android Studio: Not Found

Packages: (wanted => installed)
react: 16.2.0 => 16.2.0
react-native: 0.53.3 => 0.53.3

Target Platform: Android API 23, Nexus 5X

Steps to Reproduce

1. create a new react-native app from scratch (or use the repo I provided below)
2. react-native run-android
3. open debugging menu
4. tap "Start/Stop Sampling Profiler"
5. get red screen and error

Expected Behavior

I would be able to start profiling memory usage in my react-native app

Actual Behavior

"TypeError: undefined is not a function (evaluating 'global.pokeSamplingProfiler()')"

Reproducible Demo

Either create a react-native repo from scratch, or use this repo here which is just that (no local modifications made after react-native init):

https://github.com/dannycochran/rn-profiler

[evanjmg]

Same here for Nexus 4, 5.1.1 +1

[tuomohopia]

I seem to be hitting the same problem on both, Android Studio emulator as well as on my own Oneplus 5T.

RN 0.55

[aayushis12]

same with Android 8.0.0

[Lidanha]

Hey guys,

I have the same issue, is there a workaround for finding performance issues?

Thanks,
Lidan

[337240552]

android 6.0 Rn 0.55.0

[JulianKingman]

I get the same global.pokeSamplingProfiler. I'm using ExpoKit 28.0.0, fwiw

[haggholm]

Ditto. Same as #15003?

[fzyzcjy]

same +1, rn 0.55

[fzyzcjy]

Any ideas? :/

[tuomohopia]

Still getting this at RN 0.57.2 - anyone got any closer to understanding the root of the problem?

[sesam]

Getting this on both 0.55.4 and 0.57.1

[armaanahluwalia]

Same on android with RN 0.55.4

[henrymoulton]

Same on android with RN 0.55.4

[axe-fb]

I think we no longer use the sample profiler. I would recommend using Systrace.

Here is a post I wrote about profiling- http://blog.nparashuram.com/2018/11/react-native-performance-playbook-part-i.html

[stale]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as a "Discussion" or add it to the "Backlog" and I will leave it open. Thank you for your contributions.

[axe-fb]

I am working on a fix for this.

[stale]

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require the community's attention? This issue may be closed if no further activity occurs. You may also label this issue as a "Discussion" or add it to the "Backlog" and I will leave it open. Thank you for your contributions.

[stale]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please feel free to create a new issue with up-to-date information.