Nico Kruber created FLINK-7310:
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Summary: always use HybridMemorySegment
Key: FLINK-7310
URL: https://issues.apache.org/jira/browse/FLINK-7310
Project: Flink
Issue Type: Improvement
Components: Core
Affects Versions: 1.4.0
Reporter: Nico Kruber
Assignee: Nico Kruber
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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