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This is a i7-8700, 32Gb of RAM, NVIDIA GeForce GTX 1080, running Windows 10 and Java 8 (171) installed and heap memory set to max 32Gb(-Xmx32g) (?) on run parameters.
I think this is not a question about library. However, as experiment, I am running an example from box2D library for processing named Liquidy.pde where I changed the sketch
sizeto (600,300) and tested 3 renderers (default,
P2D was way too slow to be considered at this point.
I am printing the total memory, allocated memory, free memory, n of particles, fps in the title of the sketch.
I am also declaring the sketch to run at 60 fps using
I have tried to increase maximum available memory, but when the option was disabled, I have got a slightly better performance in fps.
When running the sketch, a click of mouse will generate a particle system. 10 clicks would generate an environment with about 1000 particles, and 15 clicks will stay around 1700. See attached picture:
With 10 particle systems, each rendered kept sketch running around 60 fps:
JAVA2D a little worse than default.
P3D performed just a little better.
for 15 particle systems, frame rate will decrease to 15 fps (
P3D), 19fps (
JAVA2D and default).
Disabling the "increase maximum available memory" in preferences (and restarting?) made default renderer and
JAVA2D to perform a little better when running 15 particle systems. From ~20fps, they jumped to 25fps.
I am not running out of memory and I wonder if there is any way to improve the performance of my sketches. Thanks