RFR(XS): 8147844: new method j.l.Runtime.onSpinWait()

[David Holmes]

HI Ivan,

On 27/01/2016 11:31 PM, Ivan Krylov wrote:
> Hello,
>
> Earlier there was a discussion on this mail alias about the spin loop
> hint proposal [1]. Based on the feedback from that discussion some
> changes were incorporated and the JEP has been filed [2]. There seems to
> be a consensus on the API side. The JEP is now in a draft state and I
> hope this JEP will get targeted for java 9 shortly.

The discussion in [1] continued in:

http://mail.openjdk.java.net/pipermail/core-libs-dev/2015-December/037063.html

but ended abruptly. In particular Mark's query as to why this moved from 
Thread to Runtime was seemingly left unanswered.

Thanks,
David

> Please review the upcoming API changes:
> http://cr.openjdk.java.net/~ikrylov/8147844.jdk.00/
>
> For the reference, the new generated JavaDoc for j.l.Runtime class and
> the new method
> http://ivankrylov.github.io/onspinwait/api/java/lang/Runtime.html#onSpinWait--
>
>
> Thanks,
>
> Ivan
>
> 1 -
> http://mail.openjdk.java.net/pipermail/core-libs-dev/2015-October/thread.html#35613
>
> 2 - https://bugs.openjdk.java.net/browse/JDK-8147832.