On Fri, 24 Feb 2023 04:03:53 GMT, Martin Doerr <mdo...@openjdk.org> wrote:
> * Since the membar on the return path was mentioned: I think it would be good > to enable UseSystemMemoryBarrier by default on operating systems which > support it. Maybe we should discuss this with @robehn. Changing the default is fine by me. There is, AFAIK, one case that needs to read the thread state a lot, thus emitting sysmembars alot, JFR with very high sampling rate. Other than that there are no issues that I know about. Maybe it would be good to test at what sampling interval we notice a change? Also I think it's not best match to have the flag experimental when we are in some sense using it. Maybe diagnostic? ------------- PR: https://git.openjdk.org/jdk/pull/12708
