Zhu Zhu created FLINK-19286: ------------------------------- Summary: Improve pipelined region scheduling performance Key: FLINK-19286 URL: https://issues.apache.org/jira/browse/FLINK-19286 Project: Flink Issue Type: Sub-task Components: Runtime / Coordination Affects Versions: 1.12.0 Reporter: Zhu Zhu Assignee: Zhu Zhu Fix For: 1.12.0
In my recent TPCDS benchmark, pipelined region scheduling is slower than lazy-from-sources scheduling. The regression is due to some suboptimal implementation of {{PipelinedRegionSchedulingStrategy}}, including: 1. topologically sorting of vertices to deploy 2. unnecessary O(V) loop when sorting an empty set of regions After improving these implementations, pipelined region scheduling turned to be 10% faster in the previous benchmark setup. -- This message was sent by Atlassian Jira (v8.3.4#803005)