tree 5c87f49c075faa30973c490d20b8354e4591b20a
parent ff5f332297f03cdefd312358ebaf2bddf3563354
author Haeyoon Cho <chohy0555@gmail.com> 1565159240 +0900
committer John Yang <johnyangk@apache.org> 1565159240 +0900

[NEMO-388] Off-heap memory management (reuse ByteBuffer) (#223)

JIRA: [NEMO-388: Off-heap memory management (reuse ByteBuffer)](https://issues.apache.org/jira/projects/NEMO/issues/NEMO-388)

**Major changes:**
- New executor option: `max_offheap_mb` and `chunk_size_kb`
- `MemoryPoolAssigner` class is involved in block creation to use off-heap memory
- `ByteBuffer` is now reused, wrapped by `MemoryChunk`

**Tests for the changes:**
- `MemoryChunk` put/get tests included
- `MemoryPoolAssigner` tests included

**Other comments:**
- Design doc attached in JIRA will be edited soon