EA builds with changes to object monitor implementation to avoid pinning with virtual threads
Brian S O'Neill
bronee at gmail.com
Sat Feb 10 15:47:41 UTC 2024
On 2024-02-10 01:26 AM, Alan Bateman wrote:
>
> We've published early-access builds from the loom repo [1] that have
> changes to the object monitor implementation that do not pin for these
> two common cases. We need help to test these changes. Testing the
> changes means trying out the builds with code that you know is using
> virtual threads and with libraries that are heavily synchronized. We
> need to gauge both reliability and performance. The simplest way to
> report an issue or feedback is to just send a mail here. For the VM
> savvy, testing with both -XX:LockingMode=1 (current default) and
> -XX:LockingMode=2 would be super helpful as that would exercise the two
> locking mode currently mplemented by the HotSpot VM.
>
Is there a document which summarizes the changes to the object monitor
implementation?
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