pnowojski opened a new pull request #8476: [FLINK-12490][network] Introduce 
Input and NetworkInput interfaces
URL: https://github.com/apache/flink/pull/8476
 
 
   This PR depends on https://github.com/apache/flink/pull/8467 
   
   It introduces `Input` interface, it's implementation `NetworkInput` 
(extracted from `StreamInputProcessor`) and use them in `StreamInputProcessor`.
   
   Local benchmark run shows increase in records throughput of 
`SumLongsBenchmark` from 8600 records/ms to 9200-9400 records/ms.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (**yes** / no 
/ don't know)
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / no)
     - If yes, how is the feature documented? (not applicable / docs / JavaDocs 
/ not documented)
   

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