zhoukang created SPARK-26514:
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Summary: Introduce a new conf to improve the task parallelism
Key: SPARK-26514
URL: https://issues.apache.org/jira/browse/SPARK-26514
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 2.4.0, 2.1.0
Reporter: zhoukang
Currently, we have a conf below.
{code:java}
private[spark] val CPUS_PER_TASK =
ConfigBuilder("spark.task.cpus").intConf.createWithDefault(1)
{code}
For some applications which are not cpu-intensive,we may want to let one cpu to
run more than one task.
Like:
{code:java}
private[spark] val TASKS_PER_CPU =
ConfigBuilder("spark.cpu.tasks").intConf.createWithDefault(1)
{code}
Which can improve performance for some applications and can also improve
resource utilization
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