Details
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Sub-task
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Status: Closed
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Major
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Resolution: Fixed
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1.4.0
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None
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None
Description
For future changes to the network buffers (sending our own off-heap buffers through to netty), we cannot use HeapMemorySegment anymore and need to rely on HybridMemorySegment instead.
We should thus drop any code that loads the HeapMemorySegment (it is still available if needed) in favour of the HybridMemorySegment which is able to work on both heap and off-heap memory.
FYI: For the performance penalty of this change compared to using HeapMemorySegment alone, see this interesting blob article (from 2015):
https://flink.apache.org/news/2015/09/16/off-heap-memory.html
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