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The following commit(s) were added to refs/heads/branch-4.0 by this push:
new 9ac212e1730 branch-4.0: [opt](agg) Adjust the parameters of
StreamingHtMinReductionEntry #58938 (#58986)
9ac212e1730 is described below
commit 9ac212e1730a004d237415d870bba4d2a8d234e6
Author: github-actions[bot]
<41898282+github-actions[bot]@users.noreply.github.com>
AuthorDate: Sat Dec 13 10:28:47 2025 +0800
branch-4.0: [opt](agg) Adjust the parameters of
StreamingHtMinReductionEntry #58938 (#58986)
Cherry-picked from #58938
Co-authored-by: Jerry Hu <[email protected]>
---
be/src/pipeline/exec/distinct_streaming_aggregation_operator.cpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/be/src/pipeline/exec/distinct_streaming_aggregation_operator.cpp
b/be/src/pipeline/exec/distinct_streaming_aggregation_operator.cpp
index b4939887ec9..1331a9e38ae 100644
--- a/be/src/pipeline/exec/distinct_streaming_aggregation_operator.cpp
+++ b/be/src/pipeline/exec/distinct_streaming_aggregation_operator.cpp
@@ -47,7 +47,7 @@ static constexpr StreamingHtMinReductionEntry
STREAMING_HT_MIN_REDUCTION[] = {
{.min_ht_mem = 0, .streaming_ht_min_reduction = 0.0},
// Expand into L3 cache if we look like we're getting some reduction.
// At present, The L2 cache is generally 1024k or more
- {.min_ht_mem = 1024 * 1024, .streaming_ht_min_reduction = 0.0},
+ {.min_ht_mem = 256 * 1024, .streaming_ht_min_reduction = 1.1},
// Expand into main memory if we're getting a significant reduction.
// The L3 cache is generally 16MB or more
{.min_ht_mem = 16 * 1024 * 1024, .streaming_ht_min_reduction = 2.0},
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