Anoop Sam John created HBASE-12463:
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Summary: MemstoreLAB reduce #objects created
Key: HBASE-12463
URL: https://issues.apache.org/jira/browse/HBASE-12463
Project: HBase
Issue Type: Improvement
Components: Performance
Affects Versions: 0.99.0
Reporter: Anoop Sam John
Assignee: Anoop Sam John
Fix For: 2.0.0, 0.99.2
By default Memstore uses MSLAB. For each of the Cell added to memstore, we will
allocate area in MSLAB and return the area in BR wrapper. So each time a new BR
object is created. Instead of this we can have ThreadLocal level BR instance
and each time when allocate() API return the BR, we can set the byte[], offset,
length on this ThreadLocal level BR instance. So totally only those many
objects as the threads count (max handler count)
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