[IMPALA-5618] Performance regresses on buffer pool dev branch for high-ndv aggregations - ASF JIRA

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Type: Sub-task
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: Impala 2.10.0
Fix Version/s: Impala 2.10.0
Component/s: Backend
Labels:
- performance

Target Version:

Impala 2.10.0
Epic Color:
ghx-label-9

Description

The extra time appears to be in AddRowCustom() via PartitionedAggregationNode::ConstructIntermediateTuple(). I think allocating the boost::function object is causing the slowdown.

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Assignee:: Tim Armstrong

Reporter:: Tim Armstrong

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 06/Jul/17 00:51

Updated:: 07/Jul/17 18:02

Resolved:: 07/Jul/17 18:02