sketch with frameRate(59) uses much less processor than same sketch without

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rbrauer

sketch with frameRate(59) uses much less processor than same sketch without

in General Discussion • Other • 1 year ago

I just noticed this with 2.0a1 and P3D (GL2). I have a simple sketch that draws a shape with about twenty verts using cureVertex and regular vertex calls and calculates a curve tangent. When I add frameRate(59) to this sketch it goes from showing 25%+ processor usage in task manager, to around 1-5%. If I insert frameRate(60), which is the default behavior as far as I know, usage is back to 25% and above. Anyone else notice this or have any idea why it is happening?

By the way, I just tested it with a blank sketch that only clears the background with the same results.

Replies(3)

maleo

Re: sketch with frameRate(59) uses much less processor than same sketch without

1 year ago

keep in mind this is alpha software. you might want to try the newest version 2.0a4 though. or the stable release (1.5.1).

i tried out a blank sketch, only clearing the background with 1.5.1 and 2.0a4 on mac os x, and monitored cpu usage:

1.5.1 P3D

14 %

60fps 14 %

59fps 14 %

1.5.1 OPENGL

6 %

60fps 6 %

59fps 6 %

2.0a4 OPENGL (=P3D)

4 %

60fps 4 %

59fps 4 %

[Edit:] As of yesterday the newest version is 2.0a5, as amnon.owed pointed out.

amnon.owed

Re: sketch with frameRate(59) uses much less processor than same sketch without

1 year ago

When I test a sketch that only clears the background in draw...
...regardless of if the frameRate is 59, 60 or 1000...
...and if the renderer is JAVA2D, P3D or OPENGL...
...and if the Processing version is 1.5.1 or 2.0 alpha 5...
...my CPU usage does not go above 1%.

I don't have alpha 1 anymore. You could try downloading alpha 5 or stable 1.5.1 to see if these versions of Processing give you the same results. If so, please post a test sketch that shows this behavior.

rbrauer

Re: sketch with frameRate(59) uses much less processor than same sketch without

1 year ago

I have beta 0152 which doesn't do it. I also tried 1.01 and 1.5.1 which both have the problem. I'll update when I have alpha 5 downloaded. Figures I decided to post this the one day I didn't check for updates.

I have a feeling it must have something to do with my system setup, maybe these new NVidia drivers.

Still happening with alpha 5. I'm on windows 7 x64 with an NVidia GeForce GTX 560 Ti and 296.10 graphics driver.

Edit:
Creating a profile for Processing's java.exe in NVidia control panel and setting vsync to "force off" seems to have solved this.