Diagnosing Overhead

sample_time and learn_time below do not sum to wall clock time

stats               = self.train()
sample_time  = timers['sample_time_ms']
learn_time      = timers['learn_time_ms']

I’m seeing about 10-20% overhead. Does RLlib track and additional timing data anywhere that could help diagnose the source?

cc @sven1977 -------