OpenJDK tiered tests definitions have the catch-all `tier4` that runs all tests not defined in the lower tiers. `hotspot:tier4` has lots of them, mostly long-running vmTestbase tests, which take many hours even on a very parallel machines.
This, unfortunately, has a chilling effect on `jdk:tier4`, which is seldom run by contributors, because `hotspot:tier4` is in the way. But, there are plenty of fast and stable tests in `jdk:tier4` that can be run in `jdk:tier3`. `jdk_svc` is the example of such tests: management features (including but not limited to JFR) are important to keep from regressions, and significant subset of them runs pretty fast. So, it makes sense to move some `jdk_svc` tests to `jdk:tier3` to expose it to more contributors. I think the only group we don't want to run is `svc_tools`, which includes lots of non-parallel tests that are rather slow. Sample run before: ============================== Test summary ============================== TEST TOTAL PASS FAIL ERROR jtreg:test/jdk:tier3 174 174 0 0 ============================== TEST SUCCESS Finished building target 'run-test' in configuration 'linux-x86_64-server-fastdebug' real 2m38.242s user 80m7.216s sys 2m13.846s ============================== Test summary ============================== TEST TOTAL PASS FAIL ERROR >> jtreg:test/jdk:tier4 2904 2901 3 0 << ============================== TEST FAILURE real 18m13.933s user 546m50.556s sys 25m7.086s Sample run after: ============================== Test summary ============================== TEST TOTAL PASS FAIL ERROR jtreg:test/jdk:tier3 1296 1296 0 0 ============================== TEST SUCCESS Finished building target 'run-test' in configuration 'linux-x86_64-server-fastdebug' real 7m49.017s user 287m30.943s sys 13m20.060s ============================== Test summary ============================== TEST TOTAL PASS FAIL ERROR >> jtreg:test/jdk:tier4 1783 1780 3 0 << ============================== TEST FAILURE real 12m19.973s user 351m48.561s sys 14m51.566s ------------- Commit messages: - Fix Changes: https://git.openjdk.java.net/jdk/pull/6619/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6619&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8277992 Stats: 6 lines in 1 file changed: 2 ins; 3 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/6619.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/6619/head:pull/6619 PR: https://git.openjdk.java.net/jdk/pull/6619
