Vladan Djeric (:vladan) Reporter
	Description • 9 years ago

The height of BHR histograms in "Thread Hangs" is always zero. This is a regression from bug 1122480

	Georg Fritzsche [:gfritzsche]
	Comment 1 • 9 years ago

What is a good way to trigger some histograms there?

	Vladan Djeric (:vladan) Reporter
	Comment 2 • 9 years ago

(In reply to Georg Fritzsche [:gfritzsche] from comment #1)
> What is a good way to trigger some histograms there?

The BHR hang threshold is 128ms so browsing for a little while (especially heavy pages with Flash) will do it. Doing a tight loop from DevTools should do it too.

	Georg Fritzsche [:gfritzsche]
	Comment 3 • 9 years ago

Even with a heavy loop in the browser console i'm failing to trigger something showing up in Services.telemetry.chromeHangs.

Any tips on consistent steps to trigger data there?

	Vladan Djeric (:vladan) Reporter
	Comment 4 • 9 years ago

(In reply to Georg Fritzsche [:gfritzsche] from comment #3)
> Even with a heavy loop in the browser console i'm failing to trigger
> something showing up in Services.telemetry.chromeHangs.
> 
> Any tips on consistent steps to trigger data there?

It's in the "Thread Hangs" section (Services.telemetry.threadHangStats), not "Browser Hangs" (Services.telemetry.chromeHangs)

	Vedant Sareen [:fionn_mac]
	Comment 5 • 7 years ago

Hello!

Is this bug still relevant? I tried the above mentioned methods to trigger histograms, but nothing happened.
Could someone please guide me through replicating and understanding the issue?