Withdrawn: JDK-8283674: Pad ObjectMonitor allocation size to cache line size

Thomas Stuefe stuefe at openjdk.java.net
Sun May 29 06:11:37 UTC 2022


On Fri, 25 Mar 2022 09:02:28 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> See discussion under [1].
> 
> Since the libc malloc allocator may place ObjectMonitor instances adjacent to each other, we should pad the size of ObjectMonitor to fill a whole cache line to prevent false sharing between adjacent OMs.
> 
> [1] https://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2022-March/054187.html

This pull request has been closed without being integrated.

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PR: https://git.openjdk.java.net/jdk/pull/7955


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