Github user tnachen commented on the pull request:
https://github.com/apache/spark/pull/3393#issuecomment-64097685
Hi @pwendell, 1. Is a great suggestion there isn't enough comments for
sure, I can add more in another pr.
For 2 I dont have enough context to infer what's the best choice of cores
per task so I believe I just refactor the existing behavior. I do like to see
why these values are chosen since this is more spark specific than mesos, I'll
try to change these numbers and see if I can see any impact running spark perf.
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