Native Module performance issues with RN 0.27 (Android)

[undef1ned]

After upgrading to RN 0.27.1 I've noticed huge performance issues with my custom android module. Basically the module represents a video player which streams video over network. The module is based on exoPlayer. I have no any crashes or so, just the video is very laggy and interrupts every time. It's completely unusable. After rolling back to Rn 0.26.3 - everything is fine

Seems custom native modules support was broken

[K-Leon]

I can confirm this.. there is a critical performance degradation in 0.27 and 0.28. Reverting to 26.3 fixed it.

In fact TouchableOpacity + Navigation Push while a NativeModule runs in Background results in a 20-60 second lag. 0.26 works like a charm.

[oureta]

I'm experiencing this on iOS as well

[lucasfeliciano]

👍 ward

[charpeni]

@facebook-github-bot label Android

[undef1ned]

After upgrading to 0.28 I'm experiencing the same problems, so did a roll-back to 0.26.3. However I depend on some features introduced in 0.28

In general, the application runs smooth on LG G4, but on the HTC Desire 500e it's unusable when built with RN 0.28 / 0.27

[charpeni]

Thank you for the reporting, it seems a blocking issue to me that will restrain developers to an old version of React Native.

Sorry for the bad label, I wasn't noticed at time that experiencing on iOS too. I'll add some labels and report it in the Core Contributors group.

cc @javache @astreet @lexs