Re: [Chromium-dev] Chromium performance

[Brian P. <bri...@tu...>]

Andres Lagar Cavilla wrote:
> Hi again,
> I've been reviewing an old thread regarding chromium performance and was 
> wondering what is the state of matters as of today, v1.9-rc4
> Assuming the network is not the limiting factor (big chunk of an 
> assumption, heh):
> - Is chromium limited by CPU consumption during unpacking? I've seen 
> high rates of CPU occupation by crserver for several apps (quake 3, 
> mplayer, glxgears)

It depends.  If the graphics card is very fast, the limiting factor 
may be the unpacker/crserver, or it may be the network.

One easy thing to do is run 'top' on the crserver host while 
Chromium's running to see how busy the CPU is.


> - What about all the pointer swinging as function calls go down the 
> SPU's? If someone wanted to optimize a particular set-up, would it be 
> worthwhile replacing the spu loading mechanism with something less 
> general but potentially faster?

I don't think function calls are too big of deal there; we're doing 
just about as good as we can.  On Linux (and other platforms) we're 
using assembly code for dispatching GL functions (see 
opengl_stub/Linux_i386_exports.s).  And if a SPU doesn't 
implement/override a particular GL function there's no undue cost.


> - Anything else?

With all the different possible Chromium configs, it's hard to be 
specific.

Do you have a certain configuration in mind?

-Brian