On Tue, 31 May 2022 15:39:39 GMT, Alan Bateman <al...@openjdk.org> wrote:
>> This patch adds an alternative virtual thread implementation where each >> virtual thread is backed by an OS thread. It doesn't scale but it can be >> used by ports that don't have continuations support in the VM. Aside from >> scalability, the lack of continuations support means: >> >> 1. JVM TI is not supported when running with --enable-preview (the JVM TI >> spec allows for this) >> 2. jshell --enable-preview can't be used (as jshell uses the debugger APIs >> and so needs JVM TI) >> >> The VM option "VMContinuations" is added as an experimental option so it can >> be used by tests. A number of tests are changed to re-run with >> -XX:-VMContinuations. A new jtreg property is added so that tests that need >> the underlying VM support to be present can use "@requires vm.continuations" >> in the test description. A follow-up change would be to add "@requires >> vm.continuations" to the ~70 serviceability/jvmti/vthread that run with >> preview features enabled. > > Alan Bateman has updated the pull request incrementally with one additional > commit since the last revision: > > Allowing linking without intrinsic stub, contributed-by: rehn Looks okay to me. src/java.management/share/classes/sun/management/ThreadImpl.java line 586: > 584: > 585: /** > 586: * Returns the ThreadInfo objects from the given array that > coresspond to platform typo: coresspond -> correspond src/java.management/share/classes/sun/management/Util.java line 92: > 90: > 91: /** > 92: * Returns true if the given Thread is a virutal thread. typo: virutal -> virtual this typo appears in other comments too. ------------- Marked as reviewed by mchung (Reviewer). PR: https://git.openjdk.java.net/jdk/pull/8939
