Details
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Improvement
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Status: Resolved
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Minor
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Resolution: Fixed
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Impala 2.7.0
Description
This is the more interesting follow-on from IMPALA-3815. We should inline the Compare() calls in the codegen'd TopN code to avoid the indirect function pointer call.
The tricky aspect is that the Compare() calls are called from std::priority_queue, and we don't have a way to force-inline those functions at the moment.
Attachments
Attachments
Issue Links
- is blocked by
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IMPALA-3815 Clean up TopN node codegen'd code
- Resolved
- relates to
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IMPALA-3816 Codegen perf-critical loops in Sorter
- Resolved