search

venkat6 / o3d

Automatically exported from code.google.com/p/o3d
0 stars 0 forks source link

Instancing demos raise CPU Utilization ( 70 -- 85 %) on Firefox and Safari . #154

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Platform:
  Hostname: testing-102.local
  Mac OS X Version 10.5.8 (Build 9L30)
  Processor: 2 Intel 2.40 GHz
  RAM: 2048 MB

O3D:
  O3D version: 0.1.42.0.453 <<<Release>>>

Installed Browsers:
  Safari: 4.0.3 (5531.9)
  Firefox: 3.5.3 (3.5.3)
  Camino: 1.6.9 (1609.08.15)

Video card : This is seen generic in 3 machines with video cards :

Nvidia GeForce 8600 GT 
Nvidia GeForce 7300 GT 
Nvidia GeForce GT 120 

What steps will reproduce the problem?
1. Run any sample of Instancing demos 
http://o3d.googlecode.com/svn/trunk/samples/instancing.html  - 
(  70  --  85 %) 
or 
http://o3d.googlecode.com/svn/trunk/samples/instance-override.html-
(  70  --  85 %) 

2. Leave them run for few minutes

What is the expected output?
CPU utilization should not go up.

What do you see instead?
Safari and Firefox cpu utilization goes up beyond 65% + .. to 70 -85 %

Original issue reported on code.google.com by srikan...@google.com on 18 Sep 2009 at 5:43

GoogleCodeExporter commented 8 years ago

Original comment by kr...@google.com on 21 Sep 2009 at 9:21

GoogleCodeExporter commented 8 years ago

Original comment by kr...@google.com on 22 Sep 2009 at 6:13

GoogleCodeExporter commented 8 years ago 
Is this a regression from our previously shipped plugin?

Original comment by vange...@google.com on 26 Sep 2009 at 1:47

GoogleCodeExporter commented 8 years ago 
Apparently not. I tried 0.1.38.1 and it's also 73-77% CPU.

Note that is 50% slower than my PC on XP.

I tried both D3D and GL on PC as a comparison to rule out GL vs D3D. Both came 
up
with similar speeds. GL was ~5% more CPU usage although the GL one ran at 30hz 
and
the D3D one ran at 60hz which makes it a hard comparison.

It could be any of the following
*) My PC is faster than my mac (both are 2.4ghz)
*) GCC is not optimizing as much as VC++
*) OSX is slower than Windows XP
*) Something else in our OSX implementation is slow

Original comment by g...@google.com on 28 Sep 2009 at 10:32

GoogleCodeExporter commented 8 years ago 
Reproducible on O3D version: 0.1.42.1
Bad Performance for Instancing examples

Original comment by ism...@google.com on 30 Sep 2009 at 10:57