Re: can someone suggest why firefox is so &$*&^%*#^&%* slow?

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On Wed, 2014-09-24 at 10:44 -0400, Robert P. J. Day wrote:
>   i am at my wit's end with firefox on my fedora rawhide system -- to
> say it's nad-grindingly slow would be charitable. just now, i tried
> clicking on another tab ... some 30 seconds later, i am still waiting
> for the tab to change, oh, wait, there it is.
> 
>   watching any sort of youtube video is excruciating ... while audio
> is typically, i will frequently get *maybe* one frame change a second,
> i kid you not. i frequently get javascripts that are not responding,
> and i'm asked whether i want to wait for them.
> 
>   is there *something* i can do to debug this? what firefox
> configuration settings should i be looking at? i'm willing to try
> anything because, at this point, firefox is utterly unusable. even
> something as simple as scrolling in a window is painfully slow.
> 
>   oh, and i'm on a quad core i7, so i'm pretty sure horsepower isn't
> the problem.

FWIW, I've been seeing some odd 'laggy' behaviour in F21 on my desktop
lately, which does mostly seem to be in Firefox. I do have sixteen
zillion tabs open, but I do that a lot and it's not happened before, and
RAM isn't exhausted (I have 16GB, using about 8GB). I don't have Flash
installed. Not had time to look into it in more detail yet, but it does
seem like something squiffy is going on.

The symptoms are basically that things like switching tabs, highlighting
text, copy/pasting, or input appearing after I start to type lag by 1-3
seconds, and sometimes presses/characters that occur within the lag time
are lost.
-- 
Adam Williamson
Fedora QA Community Monkey
IRC: adamw | Twitter: AdamW_Fedora | XMPP: adamw AT happyassassin . net
http://www.happyassassin.net

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