Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/5635#discussion_r28925663
--- Diff: core/src/main/scala/org/apache/spark/scheduler/Task.scala ---
@@ -87,12 +87,19 @@ private[spark] abstract class Task[T](val stageId: Int,
var partitionId: Int) ex
// initialized when kill() is invoked.
@volatile @transient private var _killed = false
+ protected var _executorDeserializeTime: Long = 0
+
/**
* Whether the task has been killed.
*/
def killed: Boolean = _killed
/**
+ * Returns the amount of time spent on task / RDD deserialization.
--- End diff --
maybe "spent deserializing the RDD and function to be run"? (since
technically deserialization of the task happens in Executor.scala, not here)
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