1557491 - twitch makes my macbook pro very sad

Status: NEW

(Core :: Graphics: WebRender, defect, P3)

Description

[Aria Beingessner [:Gankra]]

Attachment: about-support.txt

Mostly filing this bug to remind myself to investigate this more closely. My machine gets bogged down very easily when watching twitch streams. Seems to mostly be a function of the target render size. So for instance if I shrink the window down to ~1/4 of my screen it can play alright, but past that it can start causing my laptop to become very unresponsive.

Just now it seems to have caused a crash, I think from running out of memory for textures?

https://crash-stats.mozilla.org/report/index/9b273d8a-d926-4243-8889-7df8d0190606

I don't think I generally have any such problems with youtube.

I just turned off document splitting to see if that improves the situation.

Comment 1

[Aria Beingessner [:Gankra]]

some profiles:

fullscreen: https://perfht.ml/2WNZQ47

with chat: https://perfht.ml/2WTxw0g

1/4 screen: https://perfht.ml/2WRlJ2K

Comment 2

[Aria Beingessner [:Gankra]]

profile from miko, who has also noticed this: https://perfht.ml/2K1aYoz

Comment 3

[Aria Beingessner [:Gankra]]

redid profiles with screenshots disabled and interval fixed (new install):

fullscreen: https://perfht.ml/2WQCk6L

with chat: https://perfht.ml/2WQCwmv

1/4 screen: https://perfht.ml/2WQCuLp

(might have gotten these mixed up)