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Posted to dev@pig.apache.org by "Yan Zhou (JIRA)" <ji...@apache.org> on 2009/12/01 02:03:20 UTC

[jira] Updated: (PIG-1098) [zebra] Zebra Performance Optimizations

     [ https://issues.apache.org/jira/browse/PIG-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yan Zhou updated PIG-1098:
--------------------------

    Attachment: PIG-1098.patch

> [zebra] Zebra Performance Optimizations
> ---------------------------------------
>
>                 Key: PIG-1098
>                 URL: https://issues.apache.org/jira/browse/PIG-1098
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Yan Zhou
>            Assignee: Yan Zhou
>            Priority: Minor
>             Fix For: 0.6.0, 0.7.0
>
>         Attachments: PIG-1098.patch
>
>
> Many in-core performance optimization opportunities exist in zebra, such as removal of redundant precautionary checks, use of better collection types to reduce levels of indirection to the memory objects, changing of input splits in ascending sizes to descending sizes. Observed protyped improvements are around 10% wall clock time improvements.

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