RFA 8056248: Improve ForkJoin thread throttling

[Seán Coffey]

I don't see CCC approval for an 8u backport either. Please ensure that's 
been completed also.

regards,
Sean.

On 05/09/14 10:54, Alan Bateman wrote:
> On 05/09/2014 10:35, Paul Sandoz wrote:
>> Hi,
>>
>> I would like to backport the improvements to the fork join framework 
>> from 9 to 8u40:
>>
>> http://mail.openjdk.java.net/pipermail/core-libs-dev/2014-August/028419.html
>>
>>    https://bugs.openjdk.java.net/browse/JDK-8056248
>>
>> http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8056248-fj-thread-throttling/webrev/
>>
>>    http://hg.openjdk.java.net/jdk9/dev/jdk/rev/7af64e3e095d
>>
>> The changeset (when shuffled) imports cleanly into jdk8u-dev/jdk.
>>
>> However, it also introduced a new system property 
>> ("java.util.concurrent.ForkJoinPool.common.maximumSpares"). I am not 
>> sure if we can add such a new feature to an 8u release, any advice?
> It updates the spec so I assume would require a MR if you want this to 
> update the Java SE 8 spec.
>
> Maybe the simplest for 8u is to put this under an @implNote so that 
> it's clear to anyone generating the javadoc for 8u that this property 
> is JDK-implementation specific (at least in in 8u).
>
> -Alan.