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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