Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/2933#issuecomment-60500716
I've been thinking about this some more and I wonder about the motivation
for this change: how much of a performance benefit does this buy us for typical
workloads? This (and the other torrentbroadcast inlining patch) add extra
code-paths / complexity, but do they buy us measurable performance benefits?
I'm concerned about adding extra branches to already-complicated code.
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