On Tue, 8 Dec 2020 05:54:24 GMT, Martin Buchholz <mar...@openjdk.org> wrote:

>> 8246677: LinkedTransferQueue and SynchronousQueue synchronization updates
>
> Martin Buchholz has refreshed the contents of this pull request, and previous 
> commits have been removed. The incremental views will show differences 
> compared to the previous content of the PR.

This PR causes 16x performance regression in SynchronousQueue. Details are in 
https://bugs.openjdk.java.net/browse/JDK-8267502

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PR: https://git.openjdk.java.net/jdk/pull/1645

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