[doris] branch master updated: [improvement]Increase min_ht_mem of StreamingHtMinReductionEntry (#10787)

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yiguolei pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new 89e2678f4e [improvement]Increase min_ht_mem of StreamingHtMinReductionEntry (#10787)
89e2678f4e is described below

commit 89e2678f4e32a6e212e49019cab1ff0eb54e93b7
Author: Jerry Hu <mr...@gmail.com>
AuthorDate: Tue Jul 12 22:20:02 2022 +0800

    [improvement]Increase min_ht_mem of StreamingHtMinReductionEntry (#10787)
---
 be/src/vec/exec/vaggregation_node.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/be/src/vec/exec/vaggregation_node.cpp b/be/src/vec/exec/vaggregation_node.cpp
index c1de52de25..62e3e415b3 100644
--- a/be/src/vec/exec/vaggregation_node.cpp
+++ b/be/src/vec/exec/vaggregation_node.cpp
@@ -65,9 +65,11 @@ static constexpr StreamingHtMinReductionEntry STREAMING_HT_MIN_REDUCTION[] = {
         // Expand up to L2 cache always.
         {0, 0.0},
         // Expand into L3 cache if we look like we're getting some reduction.
-        {256 * 1024, 1.1},
+        // At present, The L2 cache is generally 1024k or more
+        {1024 * 1024, 1.1},
         // Expand into main memory if we're getting a significant reduction.
-        {2 * 1024 * 1024, 2.0},
+        // The L3 cache is generally 16MB or more
+        {16 * 1024 * 1024, 2.0},
 };
 
 static constexpr int STREAMING_HT_MIN_REDUCTION_SIZE =


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