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  1. Flink
  2. FLINK-14936

Introduce MemoryManager#computeMemorySize to calculate managed memory from a fraction

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      A MemoryManager#computeMemorySize(double fraction) is needed to calculate managed memory bytes from a fraction.
      It can be helpful for operators to get the memory size it can reserve and for further #reserveMemory. (Similar to #computeNumberOfPages).

      Here are two cases that may need this method in near future:
      1. Python operator memory management
      2. Statebackend memory management

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              • Assignee:
                zhuzh Zhu Zhu
                Reporter:
                zhuzh Zhu Zhu
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