Re: cpu at 99% by firefox

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On 08/03/2015 09:51 AM, Ed Greshko wrote:
On 08/03/15 23:19, jd1008 wrote:
My suspicion is that it is not html5.
I say this because, even though I was cruising youtube,
I was not playing anything. Furthermore, I used an addon
to block all ads, so I had no animated ads, nor any ads
on the pages. So, I am puzzled about what is eating the
cpu bandwidth. I wish there were away for the user to
view all the JS directives that FF receives from the web sites
so we can know exactly what it is doing. We  need to
able to exercise total control over what the browser is
doing on behalf the websites we visit.

When I killed FF, cpu usage went down to 2%.
Looking back at the archives you seem to have more problems than you can shake a stick at.

I tried very hard today to get FF into the condition you're reporting and could not.  I went on eBay, YouTube, CNN, mlb.com, NYtimes and a whole bunch of other places.  I had 8 tabs open including Facebook and G+.  No issues.  But, I also don't have any addons or extensions to firefox since that isn't my browser of choice.

In this post you've indicated perceived problems with CPU usage as well as network bandwidth.

For the network bandwidth, you can always use wireshark to see what may be hogging the network.

For the cpu issue, maybe gdb offers some clues.

I did not mention network as that does not seem to be the problem.
Just the cpu utilization by FF according to output of top.

gdb shows stacks. How can one use gdb to find just exactly what
is eating up so much cpu?

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