I occasionally need to open about 50 websites in one hit… !!!
Firefox 3 is great, in that its quick, and doesn’t chew up my system RAM.
But sometimes I open up some badly written websites. I suspect they have a script error that causes an infinite loop (and thus use up all the CPU time, and cause a huge web slowdown).
So I take a look at task manager, and I see firefox is sitting at 50% (on my dual core CPU). That usually means that its using only 1 core, while the other core is idle.
If I try the same thing using IE7, I find both cores are at 100%, and ie7 feels noticeably more responsive.
It looks (to me) like firefox is not a multi-threaded application.
I’m surprised that in this age of multi core CPUs, the firefox developers haven’t developed a truly efficient product for todays CPUs.
The good news is that I recently tested googles Chrome browser… and it is amazingly good at using multiple CPUs… so much so, that if one website crashed the browser, any other tabs/websites you have open, will not be affected.
Once google irons out the security bugs, chrome will be a fantastic web browser.
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Posted by Computer Help in Technical

