Firefox very slow and high cpu usage!! (all other browse slow too)

Sorry, I asked it in 'Newbie Corner' , but still no resolved. so I asked here.
Hi all,
        when i open a website just as www.sohu.com,   my firefox (3.0.3) hang on, then display the web page very slow , and slow scroll , firefox cpu usage nearly about 100.
        I tried some sloution,like modify /etc/enviroment to set MOD_DISABLE_PANGO=1,
or disable 'tell me if a web site ...' in firefox security option.
but still slow.
some people says it's must because flash or some js.
but when  i try it in windows or ubuntu, it very fast, not like in archlinux.
so i think some thing wrong in archlinux.  I need your helps.
thank you.
p.s.
1.  pacman is very fast (the speed of wget about 400k/s)
2.  gnome web browser like firefox , slow and high cpu.
3.  the list of output of 'locale'  about 11 lines.
4.  i have already set host name like wiki says.
5.   the system is  a new system

http://wiki.archlinux.org/index.php/For … Bumping.27 ??

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    One of the first symptoms i noticed was that watching stuff on youtube was slow and jumped a lot. I checked a few things out and looked the CPU usage in activity monitor and this was about 80% to 100% when on youtube or even moving from page to page. I'e tried loads of stuff including repairing disk permissions, emptying caches and relaunching finder when the preferences file is on the desktop (not really sure what that was supposed to do).
    The next thing I discovered was that if i disconnected the laptop from the mains and played youtube and some other applications the whole thing would go into sleep mode very quickly. I have got temperature monitor downloaded now although I already know it is getting very hot.
    PS when it heats up the fan turns on because I can hear a whirring sound...
    Would really appreciate some insight into this as it seems to be a good runner otherwise.
    PS2 I have loads of free space left in the disk usage tab in activity monitor.
    Big thank you in advance

    Welcome to the world of PowerBook!
    One of the first symptoms i noticed was that watching stuff on youtube was slow and jumped a lot. I checked a few things out and looked the CPU usage in activity monitor and this was about 80% to 100% when on youtube
    Virtually no G4s are dealing well with web video anymore. The video technology used by modern developers puts a huge strain on a G4 processor. As this a choice made by coders, there is not much you can do about it. Some people suggest adding RAM but the effect is marginal considering it's the processor that's taxed.
    Notebooks get hot. The fans in my 1Ghz 17-inch PowerBook from 2003 kick in between 130 and 140°F. The danger point is not until in the vicinity of 100F so don't sweat it to much. Make sure you do not cover the case bottom by setting the computer on a thick cloth placemat, pillow or other bedding item, or on your lap without a lapboard. The bootom of the case is part of the heat dissipation system and needs air under it to work
    A lot of PowerBooks have, by now, lost some or all of their "feet" that gve a little space under the case. Don't bother looking for official replacements--get the silicone door/drawer bumpers from the hardware store that stick on. I found some about 3/16" thick that let more air under my PB thatn the mostly missing originals.
    The next thing I discovered was that if i disconnected the laptop from the mains and played youtube and some other applications the whole thing would go into sleep mode very quickly
    Your battery is likely dead from old age. Batteries only last about 2-3 years. You are seeing a sign of the battery lacking sufficient remaining capacity to run the computer. Get this utility:
    http://www.coconut-flavour.com/coconutbattery/
    (you'll need the 2.6.6 version for Tiger) and post what is says about "Health" and "Cycles."

  • ME3600X-24CX and high CPU usage due to Nile process

    Hi,
    if I insert SFP modules into ports CPU usage increases. Now I have 14SFP modules (mostly metalic ones) and the CPU is above 20% permanently. All of them used by Nile process. Which I understand is something which reads interface state and switches on/off the LED lights. I think that such a thing shouldn't eat 20+% of CPU power. There must be something wrong with the process.
    As a result the switch is not able to respond to ICMP packets reliably (smokeping graph is very noisy). And I can imagine that other CPU tasks (BGP etc) could be affected too (but maybe the NILE process has lower priority).
    Verified on another ME3600X-24CX and checked with various SFP modules.
    Regards
    Dalibor Toman

    I tried to solve the problem by opening a ticket with our vendor. But because Cisco doesn't treat the problem as a bug there is no real solution but a workaround only. We increased the NILE process poll period using this command:
    test platform link_poll set_interval 80
    The CPU usage lowered significantly. And the response time on smokeping graph is slightly better too (less higher response time peaks on the graph)
    I have attached a graph of CPU usage for last 2 years. During may 2014 we replaced Cisco 3650G with the ME3600X and cpu usage went up. Next month we reconfigured the poll period and cpu went lower. During november we moved about 8 links to another device so the CPU usage lowered again.
    Regards
    D. Toman

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