Unity stutters when training with Machine Learning Agents.

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At first everything worked silky smooth, but after a few sessions of training ( I'm talking about starting training and ending, not episodes.) Unity started to hang every few seconds for a few seconds (stutter). Using GPU instead of CPU does not help.

I was able to fix it temprarily by reinstalling everything needed for mlagents be it the unity package or python.

I'm using mlagents 1.8.0 and python 3.7.0, all of my packages are up to date and everything is runing in a virtual environment.

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Answer by Grybacijus · Mar 02, 2021 at 07:42 PM

Apparently the configuration file Unity creates for ppo has way too small batch and buffer sizes, after increasing them the problem disappeared.

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Unity stutters when training with Machine Learning Agents.

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