Details

    • Type: Task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: Scheduler
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      Description

      While AURORA-1158 makes the preemptor asynchronous and helps scheduling loop performance, it loses some preemption efficiency due to adapting the original algorithm to work asynchronously:

      • Preemptor repeatedly searches for preemption slots with the same ClusterState increasing the probability of victim collisions.
      • Slave/offer/resource mappings are redundantly recomputed for every pending task slot search.
      • Pending tasks are repeatedly sized up against every slave (as opposed to the other way around) making internal loop optimizations more expensive (i.e. pending task count is expected to be << slave count under normal conditions).

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            • Assignee:
              maximk Maxim Khutornenko
              Reporter:
              maximk Maxim Khutornenko
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              • Created:
                Updated:
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