[jira] [Created] (SPARK-17304) TaskSetManager.abortIfCompletelyBlacklisted is a perf. hotspot in scheduler benchmark

["Josh Rosen (JIRA)" <ji...@apache.org>]

Josh Rosen created SPARK-17304:
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             Summary: TaskSetManager.abortIfCompletelyBlacklisted is a perf. hotspot in scheduler benchmark
                 Key: SPARK-17304
                 URL: https://issues.apache.org/jira/browse/SPARK-17304
             Project: Spark
          Issue Type: Improvement
          Components: Scheduler
            Reporter: Josh Rosen
            Priority: Minor


If you run

{code}
sc.parallelize(1 to 100000, 100000).map(identity).count()
{code}

then {{TaskSetManager.abortIfCompletelyBlacklisted()}} is the number-one performance hotspot in the scheduler, accounting for over half of the time.



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