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Firefox 33.0 CPU goes up to 40% when watching movies (regression comparing to rv32)




3 years ago
2 years ago


(Reporter: Damian Szczepanik, Unassigned)


Firefox Tracking Flags

(Not tracked)




3 years ago
After one of the recent upgrade (I believe it was about v32) Firefox started to consume more than 40% CPU when watching embedded movie so other programs could not work smoothly.

1. Install fresh Firefox v33 and remove old profiles (just to be sure than this is fresh installation)
2. Visit http://www.tvn24.pl/wideo/z-anteny/czy-polska-wyda-polanskiego,1356494.html?playlist_id=17824 and observe CPU. Refresh page if problem does not happen for the first time

I tried to switch off all plugins, hardware acceleration and JavaScript but that is not the source of the problem. Problem happens when video is attached to the site or it is playing.

Identyfikator programu 	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0
Selecting developer Tools:memory as component can only be a mistake....

The page is using flash to play the videos and I get only around 5% CPU useage of Firefox (32 and trunk)
The additional Flash process consumes a little bit more with around 15% CPU.

>Firefox started to consume more than 40% CPU when watching embedded movie so other programs could not work smoothly.

Firefox.exe , plugin-container.exe or the additional flash-player.exe ?
Which Flash plugin version do you use ?
Component: Developer Tools: Memory → Untriaged

Comment 2

3 years ago
When the page is loading Firefox consumes at least 30%, when the page is loaded Flash consumes up to 30%. However the music from external player has problem with playing when the page is loading what means that the cause of the problem is in Firefox.

When I disable Flash extension then page is not loaded but the problem with CPU remains.

Flash version: x32


3 years ago
Summary: CPU goes up to 40% when watching movie (regression comparing to v32) → Firefox 33.0 CPU goes up to 40% when watching movies (regression comparing to rv32)

Comment 3

3 years ago
I was looking for the solution for this problem and based on what Google says I'm not the only one who has discovered this regression in recent builds. Since I have quite fast notebook it might be some collision with graphical card or something like that?

I tried ti switch off hardware acceleration but it changes nothing.
Can you please post the graphic section from about:support (enter as URL)  ?
Could you try a new profile : http://support.mozilla.org/kb/Managing%20profiles

Comment 5

3 years ago
Data sterownika	4-17-2013
GPU #2 Active	false
ID dostawcy	0x8086
ID urządzenia	0x0166
Okna ze sprzętowym przyspieszeniem grafiki	0/1 Basic (OMTC)
Opis adaptera	Intel(R) HD Graphics 4000
RAM adaptera	Unknown
Renderer WebGL	Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)
Sterowniki adaptera	igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
Wersja sterownika
windowLayerManagerRemote	true
Włączone DirectWrite	false (6.2.9200.16492)
AzureCanvasBackend	skia
AzureContentBackend	cairo
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0
Hi Damian,

I have tested your issue on latest Firefox release (43.0.3) and latest Nightly (46.0a1) and I could not reproduce it. I have loaded the page using flash and the CPU usage is about 5-10%, Same results if I load the page without flash plugin disabled.

Firefox: 46.0a1, Build ID: 20151223140742, User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0
Firefox: 46.0a1, Build ID: 20160103030302, User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:46.0) Gecko/20100101 Firefox/46.0

Can you please test this on the latest Firefox release (43.0.3) or latest Nightly (46.0a1, https://nightly.mozilla.org/) and tell me if this still reproduces for you ? When doing this please use a new fresh Firefox profile, maybe also in safe mode (https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems). 
A lot of things changed from Firefox 33.0 and also the flash plugin received several updates. Your issue could have been fixed along the way.

Flags: needinfo?(damian.publicemail)
Considering the fact that the reporter did not provided more information on my request, I will mark this issue as resolved - worksforme. 
If you can still reproduce this, feel free to reopen it and provide the requested information.

Last Resolved: 2 years ago
Flags: needinfo?(damian.publicemail)
Resolution: --- → WORKSFORME
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