Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/14732#discussion_r75722532
--- Diff: docs/tuning.md ---
@@ -122,21 +122,8 @@ large records.
`R` is the storage space within `M` where cached blocks immune to being
evicted by execution.
The value of `spark.memory.fraction` should be set in order to fit this
amount of heap space
-comfortably within the JVM's old or "tenured" generation. Otherwise, when
much of this space is
-used for caching and execution, the tenured generation will be full, which
causes the JVM to
-significantly increase time spent in garbage collection. See
-<a
href="https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/sizing.html";>Java
GC sizing documentation</a>
-for more information.
--- End diff --
Should we keep the link to this reference in the `Advanced GC Tuning`?
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