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Posted to issues@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2015/04/11 02:21:12 UTC

[jira] [Updated] (HBASE-5915) Improve performance of KeyValue comparison

     [ https://issues.apache.org/jira/browse/HBASE-5915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell updated HBASE-5915:
----------------------------------
      Resolution: Fixed
        Assignee:     (was: Todd Lipcon)
    Hadoop Flags:   (was: Reviewed)
          Status: Resolved  (was: Patch Available)

[~vrodionov] later made this same optimization, which was committed

> Improve performance of KeyValue comparison
> ------------------------------------------
>
>                 Key: HBASE-5915
>                 URL: https://issues.apache.org/jira/browse/HBASE-5915
>             Project: HBase
>          Issue Type: Improvement
>          Components: Performance
>    Affects Versions: 0.94.1
>            Reporter: Todd Lipcon
>         Attachments: 5915-v2.txt, hbase-5915.txt
>
>
> Got bored tonight and poked around at making KeyValue comparison faster. I was able to get a ~23% speedup on a micro-benchmark I wrote by using Unsafe in a few more places. This should make some difference for real workloads, since this is usually one of the top CPU consumers.



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