Github user aljoscha commented on the pull request:
https://github.com/apache/flink/pull/906#issuecomment-121040843
These are the results of my performance tests:
https://docs.google.com/spreadsheets/d/1mXcy25UOiZ4lEJOia1OM-K-U6np2bWv3x4q5nSnUMdg/edit?usp=sharing
Some numbers are maybe a bit inaccurate because I only gave it 6 minutes of
runtime for every test configuration. Especially, with the watermark intervals,
sometimes the throughput is better for a lower watermark interval. This seems
counterintuitive but I think the performance can differ quite a bit between
runs, I think @rmetzger has also seen this behavior.
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