Performance page slow to load on Linux #6708
Description
Dev tools peformance tab takes over 10 seconds to load, compared to just 2 seconds for observatory
launch-performance-tab-devtools.webm
observatory-timeline-launch.webm
This is on a simple dart app:
$ cat i1.dart
main() {
Future.delayed(Duration(seconds :5), () { print('elapsed'); });
launched like
$ out/ReleaseX64/dart --observe:8080 --disable-service-auth-codes --timeline_streams=all --timeline-recorder=endless --serve-observatory i1.dart
Devtools app launched separately, connected to this dart app paused.