What was I've done:
1. blacklist kernel module powernow_k8 (it was causing trouble saying that Cool'n'quiet isn't enabled)
2. using LightDM instead of SLiM (I think that it does nothing about performance)
3. compile and install 'cairo' without gl (--enable-gl)
Now system using ~35% when rendering page, when idle use ~5% only
Marking as Solved, thank you.
]]>Then, someone can help me ?
]]>I've noted also that in some times chromium(in Arch) make usage of 100% of CPU also.
Important detail is that this occur on any page.
Ah, I'm forgetting that i've tested epiphany also, CPU usage is almost equals to chromium and firefox.
]]>Edit:
tested firefox release from official repositories, CPU usage is a bit little but nothing satisfactory, apparently too high CPU occur while is rendering a web page.
]]>Or what about using Mozilla's Firefox tarball?
]]>for example load a simple page like bbs.archlinux.org (without any other page opened) make use of +/- 90% of my processor and i've noted also that page load freezing (like a slow performance of graphics card)
I have tried:
* enable HW Acceleratiaon (it's already enabled in Advanced->General->Use hardware acceleration when available)
* clean browser cache and cookies
* disable all extensions and themes, i haven't plugins
I'm using Aurora (latest) from heftig's repo, on x86_64 system.
My processor and G. card respectively:
AMD Athlon(tm) 64 Processor 3200+
Advanced Micro Devices [AMD] nee ATI RV350 AP [Radeon 9600]