[FLINK-10537] Network throughput performance regression after broadcast changes

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.7.0
• Component/s: Runtime / Network
• Labels: pull-request-available
• Assignee: Piotr Nowojski
• Reporter: Piotr Nowojski
• Created: 12/Oct/18 12:29
• Updated: 01/Nov/18 09:06
• Resolved: 18/Oct/18 12:17

Description

There is a slight network throughput regression introduced in: https://issues.apache.org/jira/browse/FLINK-9913

It is visible in the following benchmark:

http://codespeed.dak8s.net:8000/timeline/#/?exe=1&ben=networkThroughput.1,100ms&env=2&revs=200&equid=off&quarts=on&extr=on

(drop in the chart that happened since 21st September.)

Issue Links

• is caused by: FLINK-9913 Improve output serialization only once in RecordWriter
• links to: GitHub Pull Request #6833