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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2015/10/02 08:03:26 UTC

[jira] [Created] (HBASE-14539) Slight improvement of StoreScanner.optimize

Lars Hofhansl created HBASE-14539:
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             Summary: Slight improvement of StoreScanner.optimize
                 Key: HBASE-14539
                 URL: https://issues.apache.org/jira/browse/HBASE-14539
             Project: HBase
          Issue Type: Sub-task
            Reporter: Lars Hofhansl
            Assignee: Lars Hofhansl
            Priority: Minor


While looking at the code I noticed that StoreScanner.optimize does not some unnecessary work. This is a very tight loop and even just looking up a reference can throw off the CPUs cache lines. This does safe a few percent of performance (not a lot, though).




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