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Anoop Sam John updated HBASE-14202: ----------------------------------- Attachment: HBASE-14202.patch Simpler patch. Ping [~ram_krish], [~stack] > Reduce garbage we create > ------------------------ > > Key: HBASE-14202 > URL: https://issues.apache.org/jira/browse/HBASE-14202 > Project: HBase > Issue Type: Sub-task > Components: regionserver, Scanners > Affects Versions: 2.0.0 > Reporter: Anoop Sam John > Assignee: Anoop Sam John > Fix For: 2.0.0 > > Attachments: HBASE-14202.patch > > > 2 optimizations wrt no# short living objects we create > 1. IOEngine#read call to read from L2 cache is always creating a Pair object > to return the BB and MemoryType. We can avoid this by making the read API to > return a Cacheable. Pass the CacheableDeserializer, to be used, also to the > read API. Setter for MemoryType is already there in Cacheable interface. > 2. ByteBuff#asSubByteBuffer(int, int, Pair) avoids Pair object creation > every time as we pass the shared Pair object. Still as pair can take only > Objects, the primitive int has to be boxed into an Integer object every time. > This can be avoided by creating a new Pair type which is a pair of an Object > and a primitive int. -- This message was sent by Atlassian JIRA (v6.3.4#6332)