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https://issues.apache.org/jira/browse/PIG-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-1098:
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Description: 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%. (was:
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.)
> [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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