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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-1749) ExecMapper and ExecReducer reduce function calls to l4j.isInfoEnabled()
Date Tue, 26 Oct 2010 18:04:22 GMT

     [ https://issues.apache.org/jira/browse/HIVE-1749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Namit Jain updated HIVE-1749:
-----------------------------

       Resolution: Fixed
    Fix Version/s: 0.7.0
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

Committed. Thanks Siyng

> ExecMapper and ExecReducer reduce function calls to l4j.isInfoEnabled()
> -----------------------------------------------------------------------
>
>                 Key: HIVE-1749
>                 URL: https://issues.apache.org/jira/browse/HIVE-1749
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Siying Dong
>            Assignee: Siying Dong
>            Priority: Minor
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1749.1.patch
>
>
> Calling l4j.isInfoEnabled() is more expensive than we thought. By eliminating this function
call, we can save 1% - 3% CPU time, according to the profiliing.

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