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Type:
Improvement
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Status: Resolved
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: Impala 2.7.0
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Fix Version/s: Impala 4.0
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Component/s: Backend
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Target Version:
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.
- is blocked by
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IMPALA-3815 Clean up TopN node codegen'd code
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- Resolved
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- relates to
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IMPALA-3816 Codegen perf-critical loops in Sorter
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- Resolved
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