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https://issues.apache.org/jira/browse/PIG-793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12705159#action_12705159
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Ben Maurer commented on PIG-793:
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What about generating a custom class for each type of tuple (eg using bcel).
The tuple could be efficiently accessed by a custom-compiled operator for each
field.
> Improving memory efficiency of Tuple implementation
> ---------------------------------------------------
>
> Key: PIG-793
> URL: https://issues.apache.org/jira/browse/PIG-793
> Project: Pig
> Issue Type: Improvement
> Reporter: Olga Natkovich
>
> Currently, our tuple is a real pig and uses a lot of extra memory.
> There are several places where we can improve memory efficiency:
> (1) Laying out memory for the fields rather than using java objects since
> since each object for a numeric field takes 16 bytes
> (2) For the cases where we know the schema using Java arrays rather than
> ArrayList.
> There might be more.
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