[concurrency-interest] Draft guidelines on parallelism in java.util.streams

Doug Lea dl at cs.oswego.edu
Mon Sep 1 12:23:58 EDT 2014

It's been a while now since release of JDK8, but there are still no
helpful guidelines posted about when to use their parallel features.
So some of us decided to put together some, with the aim of staying
high-level and accessible, but with enough depth and accuracy
to be concretely useful. A draft is at

This or some adaptation might someday appear in JDK supporting
materials or elsewhere.

Comments and suggestions would be welcome, especially from those
of you who have been using data-parallelism for years (long prior
to JDK8 streams).


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