cpu at 99% by firefox

[jd1008]

On 08/27/2015 10:11 AM, Patrick O'Callaghan wrote:
> On Thu, 2015-08-27 at 22:54 +0930, Tim wrote:
>> On Tue, 2015-08-04 at 12:40 +0200, Roberto Ragusa wrote:
>>> This abandoned extension is incredibly useful:
>>>   
>>> https://www.dropbox.com/s/61ovoc4hzgtm0qf/Suspend-background-tabs-m
>>> aster.xpi?dl=0
>>>   
>>> Javascript is disabled for all background tabs, so they won't use
>>> CPU
>>> time anymore.
>> I always wondered why that sort of thing wasn't the default.  Other
>> than
>> listening to some music being played from a backgrounded tab, you
>> can't
>> do much with a web page that you're not currently looking at.  It
>> doesn't seem practical to let it suck up your CPU while you're trying
>> to
>> do other things.
> Currently Firefox tabs are not separate processes. Mozilla has been
> working on it for a while now but it will mean a change to the add-ons
> system. See http://arstechnica.com/information-technology/2015/08/mozil
> la-sets-plan-to-dump-firefox-add-ons-move-to-chrome-like-extensions/
>
> poc
>
Why not use multithreading to take care of all tabs?
That way we could actually find out which FF thread(s)
is (are) sucking up so much cpu?