kennknowles opened a new issue, #18708:
URL: https://github.com/apache/beam/issues/18708
Running Nexmark queries with the direct runner between Beam 2.2.0 and 2.3.0
shows a performance degradation:
```
========================================
Beam 2.2.0 Beam 2.3.0
Query Runtime(sec)
Runtime(sec)
========================================
0000 6.4 10.6
0001 5.1 10.2
0002 3.0 5.8
0003 3.8
6.2
0004 0.9 1.4
0005 5.8 11.4
0006
0.8 1.4
0007 193.8 1249.1
0008 3.9 6.9
0009 0.9 1.3
0010 6.4 8.2
0011 5.0
9.4
0012 4.7 9.1
```
We can see especially Query 7 that is 10 times longer.
Imported from Jira
[BEAM-3617](https://issues.apache.org/jira/browse/BEAM-3617). Original Jira may
contain additional context.
Reported by: jbonofre.
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