Bug #22127
Updated by Peter Amstutz 3 months ago
The red bars represent a stalled event loop, this means the browser is basically unresponsive during these times. With a debug build, total time spent is about 8s.
!wb2-debug-jank.png!
The release build is better, but event loop is still blocked for about 2s:
!wb2-release-jank.png!
One thing that is suspicious is that the stacked blue bars represent "requestContainerStatusCount" and it is only when all those requests are completed that there is a break in the event loop being blocked.