On Thu, 13 Mar 2025 10:48:14 GMT, Alan Bateman <al...@openjdk.org> wrote:
> Follow up to JDK-8319447 to change the VirtualThread implementation to use > FJP's delayed task handling. > > The SPTE based implementation is not removed. It will continue to be used by > tests. If custom schedulers are exposed in the future then they will use this > implementation. > > For timed-Object.wait, waitTimeoutExpired is changed to use lazySubmit to > avoid signalling and increase the chance that the unparked virtual thread > will continue on the current carrier. For timed-park, the timeout task is > changed to reduced form of unpark that also uses lazySubmit, for the same > reason. > > `jcmd Thread.vthread_scheduler` is changed to no longer print the delay > schedulers. Instead, the delayed task count will appear in the default > scheduler output. This pull request has now been integrated. Changeset: 6c93ad42 Author: Alan Bateman <al...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/6c93ad42f38b49ea96155340c4b6bbedfcef2a90 Stats: 405 lines in 8 files changed: 332 ins; 41 del; 32 mod 8351927: Change VirtualThread implementation to use use FJP delayed task handling Reviewed-by: vklang ------------- PR: https://git.openjdk.org/jdk/pull/24030
