Less ArrayList churn on the scan path
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Key: HBASE-2496
URL: https://issues.apache.org/jira/browse/HBASE-2496
Project: Hadoop HBase
Issue Type: Improvement
Affects Versions: 0.20.3
Reporter: Jean-Daniel Cryans
Assignee: Jean-Daniel Cryans
Fix For: 0.20.5, 0.21.0
Doing some profiling when testing the scanning speed of 0.20.4, I saw that we
are spending a lot of time instantiating ArrayLists when scanning and that we
could sometime set the right size of the arrays. I don't expect big
improvements for short scans, but people like us who are scanning in batches of
10k could get some nice speedups.
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