Arvid Heise created FLINK-14747:
-----------------------------------
Summary: Performance regression with latest changes to Mailbox
Key: FLINK-14747
URL: https://issues.apache.org/jira/browse/FLINK-14747
Project: Flink
Issue Type: Bug
Reporter: Arvid Heise
The commits
[edeec8d7420185d1c49b2739827bd921d2c2d485|https://github.com/apache/flink/commit/edeec8d7420185d1c49b2739827bd921d2c2d485]
..
[809533e5b5c686e2d21b64361d22178ccb92ec26|https://github.com/apache/flink/commit/809533e5b5c686e2d21b64361d22178ccb92ec26]
introduced a performance regression in the course of FLINK-14304 .
The root cause seems to be the removal of the volatile variable for speed up
the hotpath in case of an empty mailbox queue resulting in unnecessary lock
acquisitions.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
