Anoop Sam John created HBASE-14480:
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Summary: Small optimization in SingleByteBuff
Key: HBASE-14480
URL: https://issues.apache.org/jira/browse/HBASE-14480
Project: HBase
Issue Type: Sub-task
Affects Versions: 2.0.0
Reporter: Anoop Sam John
Assignee: Anoop Sam John
Fix For: 2.0.0
We do read from this using Unsafe based reads on underlying BB. The
UnsafeAccess getters having 2 branches of code for HBB and DBB and exact memory
offset calculation varies. We can do an optimize here. We can initialize the
reference object and exact memory offset for Unsafe reads while creating the
SBB. We will do doing the reads on this SBB many a times. Each time when we do
read we can use
Unsafe.getXXX(Object, long)
I am able to get a slight adv of 2% on this change. Small change and worth
getting this slight gain.
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