Github user shivaram commented on a diff in the pull request:
https://github.com/apache/spark/pull/2030#discussion_r16433991
--- Diff:
core/src/main/scala/org/apache/spark/broadcast/TorrentBroadcast.scala ---
@@ -109,99 +155,30 @@ private[spark] class TorrentBroadcast[T: ClassTag](
private def readObject(in: ObjectInputStream) {
in.defaultReadObject()
TorrentBroadcast.synchronized {
--- End diff --
I am not sure there is a lot of benefit from having multiple cores execute
`readObject`. We'll then need synchronization for co-ordinating which piece is
being fetched by each thread and cap the number of total outstanding requests
etc.
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