Tools for improving startup time
Raphael Rouvinov-Kats
Would love if expo provided more information on how long the various startup sequences take, to aid debugging startup performance. E.g. it would be good to know how long the 'check for updates' process takes, the general react native initialization time, the 'load all the JS' time, maybe even the apploading/loadassets time though that's measurable in our code. Some details on where things could be sped up ("this file takes 0.2 seconds to load") and where they can't (I'm assuming the RN startup time can't be improved) could be nice as well, just so that all the components of the 'time to interactive' can be accounted for.
slap
This would be really nice. I've spent 4 days trying to debug why one of our screens takes so long to load at startup and the current debugging tools are entirely useless for this.
Mohammed Zyaan
Its been long.. Expo need to focus on app performance. Please
Kim Brandwijk
open
Brent Vatne
under review
Brent Vatne
thanks for sharing! i agree this is important
Daniel Neal
Brent Vatne: Yep this would be great to see. As a first step, being able to include a lib like https://github.com/doomsower/react-native-startup-time to measure the true startup time would be useful.
Wodin
I think this would also help with troubleshooting networking issues in cases like these: