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On Thu, 17 Jun 2010, Wills Fidell wrote:
All, At first I thought this was my imagination, but it is definitely happening:If I open up a php.net function manual page, say http://uk2.php.net/manual/en/function.date.php, in Firefox the cpu usage jumps to 99% for a period of a few seconds before the page finally loads, and there is a corresponding leap in memory usage too. The effect is more than enough to cause annoyance.However, it is not just requesting the page for the first time that does this. Switching tabs from another site back to the php.net page does the same. In my test, carried out as I write this email, switching tabs caused FF to hang for 12s.I have also just noticed that if I hide FF and then return to it when the 'top' page is php.net the same thing happensThis does not effect any other sites that I have come across. So does anybody have any ideas what is going on?
No... And I can't replicate it either.. It does cause a spike to 104% as the page loads in my firefox, but that's only for about a second as the page is actually being rendered. Switching tabs has no effect, nor has iconising firefox and opening it again...
Looks like you got a baddun ...Have you tried turning it off and on again? (ie. kill and re-launch firefox?)
My setup is dual-core Atom with 2GB of RAM - Debian Lenny and firefox 3.6.3
Could you be out of RAM and it's swapping like a swappy thing?What's the first few lines of 'top' show? (run top, then hit capital M to sort by memory usage)
My desktop looks like: top - 08:29:32 up 9 days, 20:15, 29 users, load average: 0.00, 0.02, 0.00 Tasks: 166 total, 1 running, 165 sleeping, 0 stopped, 0 zombie Cpu(s): 3.1%us, 0.7%sy, 0.0%ni, 96.1%id, 0.0%wa, 0.1%hi, 0.0%si, 0.0%st Mem: 2051752k total, 1882708k used, 169044k free, 273536k buffers Swap: 2056316k total, 0k used, 2056316k free, 1058988k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 7470 gordon 20 0 558m 242m 37m S 14 12.1 833:07.44 firefox-bin 2835 root 20 0 256m 33m 4640 S 1 1.6 121:35.35 Xorg Gordon -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html