firefox sucking up 102% of the CPU

Baykan TOKMAKCIOGLU baykant at ubs.com.tr
Fri Oct 19 14:17:03 UTC 2007


On 10/19/07, Gilboa Davara <gilboad at gmail.com> wrote:
>
> On Fri, 2007-10-19 at 07:06 -0400, Robert P. J. Day wrote:
> > on a fairly regular basis, firefox just drags the system to its
> > knees, like right now on my fedora test system, where "top" shows it
> > currently bouncing between using 101% and 102% of the CPU.  that
> > *can't* be right.  :-)
> >
> > rday
> >
>
>
> Actually it can. (My dual dual core Opteron running a one of my servers
> under load)
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 6282 gilboa    20   0  640m 534m  648 S  361 13.5   0:16.45 userbase
>
> A multithreaded application (such as firefox) can eat 100% CPU -per-
> core.
> If you have a P4 with hyper-threading (or above), a single process can
> eat 200% (or above)...
>
> Never the less, firefox should not eat 102% CPU... were you running a
> flash-something or a heavy java applet at the time?
>
> - Gilboa
>
> Especially, flash 9 plug-in creates a terrible load on my systems. It can
suck the resources if you are displaying a flash intensive page (youtube e.g
.)
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