On Tue, 28 Apr 2020 23:33:31 GMT, Kevin Rushforth <k...@openjdk.org> wrote:
>> John Neffenger 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. > > Looks good to me. > Below are some of the more interesting test results. > * The OpenJDK 11 package ... runs twice as fast as the AdoptOpenJDK build of > OpenJDK 13 for some of the tests. ... I plan > to investigate the cause of the performance difference. This is just a note to follow up on that performance problem I saw in December. I think I found the cause of the problem, and it appears to be fixed in JDK 14 and 15. The chart below shows the drastic drop in performance before the fix.  The following flame graph, created by async-profiler, led quickly to an existing Java bug report.  See the description at [JDK 13 Performance](https://jgneff.github.io/framebufferY8/2020-05/#jdk-13-performance) for details. Thank you for the quick fix, @voitylov! ------------- PR: https://git.openjdk.java.net/jfx/pull/60
