Lazy, a tool for running things in idle time

Mostly used to stop CUDA ML model training from making my desktop unusable. Simply monitors keyboard/mouse idleness using xprintidle, and pauses the given process using SIGSTOP whenever the machine is in use (defined as no activity within the last second).

Invoke either with a command,

lazy ./train_my_gpu_intensive_model.py

or with a PID of something already running.

lazy -p 1234

(In PID mode, lazy is likely to leave the process paused after exiting, if cancelled with ^C. Resume it manually with kill -SIGCONT $PID, or fg in the shell you originally started it in.)