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https://issues.apache.org/jira/browse/PIG-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12784565#action_12784565
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Alan Gates commented on PIG-1098:
---------------------------------
Committed patch to 0.6 branch as well.
> [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 improvements of wall clock
> time of some PIG LOAD queries are around 10%.
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