Mailinglist Archive: opensuse (924 mails)

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Re: [opensuse] Firefox and excessive CPU consumption
  • From: Wilfred van Velzen <wvvelzen@xxxxxxxxx>
  • Date: Tue, 30 Oct 2012 20:36:32 +0100
  • Message-id: <>
(This is just a me too response, I can't help with the capture part ;))

My experience is less extreme. But it does feel like firefox became
sluggish around version 15.0.
Firefox is normally around 1% cpu, while I have on average 4 tabs
open. But browsing to some websites trigger my fan to speed up, which
it didn't before, and they seem to be loading slower then before

openSUSE 12.1 x86_64
Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz, 4GB memory.

On Tue, Oct 30, 2012 at 7:40 PM, Carl Hartung <opensuse@xxxxxxxxxxxxx> wrote:

openSUSE 11.4 x86_64, all updates
2.0 GHz T5800 Core2Duo w/ 4 GB RAM

Hi All,

This and the past few versions of Firefox seem to constantly be
'working' on something in the background and consuming between 12% and
39% CPU when checked with top. It is enough additional work to trigger
higher fan speeds, which is what brought the condition to my attention.
It launches and stays fairly quiet, at maybe a steady 3% to 6% CPU,
then gradually through the hours just gets 'busier.' AFAIK, it really
shouldn't be doing any work unless I'm actually browsing, since my
'home page' is a simple hand-edited .html local document.

What is the best way to capture a 'profile' of this activity to see
where the additional load is coming from?

Met vriendelijke groet / Best regards,
Wilfred van Velzen
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