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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14539) Slight improvement of StoreScanner.optimize
Date Fri, 02 Oct 2015 06:03:26 GMT
Lars Hofhansl created HBASE-14539:
-------------------------------------

             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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