Github user mccheah commented on a diff in the pull request: https://github.com/apache/spark/pull/21221#discussion_r209712159 --- Diff: core/src/main/scala/org/apache/spark/memory/MemoryManager.scala --- @@ -180,6 +180,26 @@ private[spark] abstract class MemoryManager( onHeapStorageMemoryPool.memoryUsed + offHeapStorageMemoryPool.memoryUsed } + /** + * On heap execution memory currently in use, in bytes. + */ + final def onHeapExecutionMemoryUsed: Long = onHeapExecutionMemoryPool.memoryUsed --- End diff -- It probably should be if only because the variable is annotated with `@GuardedBy(this)`, so it makes the code more consistent to mark this as synchronized.
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