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- HBASE-21764
Size of in-memory compaction thread pool should be configurable - HBASE-21750
Most of KeyValueUtil#length can be replaced by cell#getSerializedSize for better performance because the latter one has been optimized - HBASE-21738
Remove all the CSLM#size operation in our memstore because it's an quite time consuming. - HBASE-20875
MemStoreLABImp::copyIntoCell uses 7% CPU when writing - HBASE-20781
Save recalculating families in a WALEdit batch of Cells - HBASE-20780
ServerRpcConnection logging cleanup - HBASE-20716
Unsafe access cleanup - HBASE-20710
extra cloneFamily() in Mutation.add(Cell) - HBASE-20628
SegmentScanner does over-comparing when one flushing - HBASE-20620
Tighter ByteBufferKeyValue Cell Comparator; part 2 - HBASE-20564
Tighter ByteBufferKeyValue Cell Comparator - HBASE-20542
Better heap utilization for IMC with MSLABs - HBASE-20483
[PERFORMANCE] Flushing is 2x slower in hbase2. - HBASE-20455
[IHC] Workloadx - HBASE-20454
[DOC] Add note on perf to upgrade section - HBASE-20390
IMC Default Parameters for 2.0.0 - HBASE-20337
Update the doc on how to setup shortcircuit reads; its stale - HBASE-20236
[locking] Write-time worst offenders
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