StefanRRichter commented on issue #7768: [FLINK-11541][tests] Reduce scale of heavy deployment e2e test for hi… URL: https://github.com/apache/flink/pull/7768#issuecomment-466054291 I analyzed it a bit more and it seems that the changes to run the execution graph single-threaded can have a negative impact on performance with slow CPUs and very large deployment descriptors, because the serialization of the deployment descriptors is now all done in one thread. Think I solve this problem by using the future executor for the calls to `submitTask` and then sync back the result into the main thread. @tillrohrmann Maybe you could take a quick look, too?
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