[Improvement](pipeline) Improve shared scan performance #20785
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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clang-tidy review says "All clean, LGTM! 👍" |
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run buildall |
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run buildall |
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clang-tidy review says "All clean, LGTM! 👍" |
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PR approved by at least one committer and no changes requested. |
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clang-tidy review says "All clean, LGTM! 👍" |
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BiteTheDDDDt
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Jun 20, 2023
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Proposed changes
Use ConcurrentQueue to replace global queue and lock for scanners.
Test on SSB.
SELECT SUM(LO_EXTENDEDPRICE * LO_DISCOUNT) AS revenue FROM lineorder_flat WHERE LO_ORDERDATE >= 19930101 AND LO_ORDERDATE <= 19931231 AND LO_DISCOUNT BETWEEN 1 AND 3 AND LO_QUANTITY < 25;
Before: 0.08s
After: 0.04s
Further comments
If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...