viirya commented on a change in pull request #29498:
URL: https://github.com/apache/spark/pull/29498#discussion_r474444019
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File path: docs/tuning.md
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@@ -264,12 +264,16 @@ parent RDD's number of partitions. You can pass the level
of parallelism as a se
or set the config property `spark.default.parallelism` to change the default.
In general, we recommend 2-3 tasks per CPU core in your cluster.
+# Parallel Listing on Input Paths
Review comment:
This should be second-level title? i.e., ## Parallel Listing on Input
Paths
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