Github user rxin commented on the issue:
https://github.com/apache/spark/pull/19222
OK thanks please do that. Does TPC-DS even trigger 2 call sites? E.g.
ByteArrayMemoryBlock and OnHeapMemoryBlock. Even there it might introduce a
conditional branch after JIT that could lead to perf degradation.
I also really worry about off-heap mode, in which all three callsites can
exist and lead to massive degradation.
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