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From "Thiruvalluvan M. G. (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AVRO-354) Performance improvement to BinaryDecoder.readInt()
Date Tue, 26 Jan 2010 15:30:34 GMT

     [ https://issues.apache.org/jira/browse/AVRO-354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thiruvalluvan M. G. updated AVRO-354:
-------------------------------------

    Resolution: Fixed
      Assignee: Kevin Oliver
        Status: Resolved  (was: Patch Available)

Committed revision 903266. Thanks Kevin.

> Performance improvement to BinaryDecoder.readInt()
> --------------------------------------------------
>
>                 Key: AVRO-354
>                 URL: https://issues.apache.org/jira/browse/AVRO-354
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>    Affects Versions: 1.3.0
>         Environment: koliver@koliver-ws4:~$ uname -a
> Linux koliver-ws4 2.6.24-26-generic #1 SMP Tue Dec 1 17:55:03 UTC 2009 x86_64 GNU/Linux
>            Reporter: Kevin Oliver
>            Assignee: Kevin Oliver
>            Priority: Minor
>         Attachments: AVRO-354-results.csv, AVRO-354.patch
>
>
> Able to get a 3-7% improvement on Perf -i by creating a specialized version of BinaryDecoder.readInt()
that uses the same code as readLong() but uses ints instead of long for all its math and bit
arithmetic.
> The performance improvement is larger on a 32-bit VM (around 7%) than on a 64-bit VM
(around 3%). 

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