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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2011/06/28 16:35:17 UTC

[jira] [Updated] (HBASE-4012) Further optimize byte comparison methods

     [ https://issues.apache.org/jira/browse/HBASE-4012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu updated HBASE-4012:
--------------------------

    Attachment: 4012.txt

TestBytes passed.
Running test suite.

> Further optimize byte comparison methods
> ----------------------------------------
>
>                 Key: HBASE-4012
>                 URL: https://issues.apache.org/jira/browse/HBASE-4012
>             Project: HBase
>          Issue Type: Improvement
>          Components: util
>    Affects Versions: 0.92.0
>            Reporter: Todd Lipcon
>            Assignee: Ted Yu
>            Priority: Minor
>              Labels: noob
>             Fix For: 0.92.0
>
>         Attachments: 4012.txt
>
>
> Guava uses some clever tricks with sun.misc.Unsafe to compare byte arrays about 100% faster than the naive byte-by-byte implementation: http://guava-libraries.googlecode.com/svn/trunk/guava/src/com/google/common/primitives/UnsignedBytes.java
> We should borrow this [Apache 2 licensed] code.

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