null
java.specification.name | Java Platform API Specification |
java.specification.vendor | Oracle Corporation |
java.specification.version | 10 |
java.vendor | Oracle Corporation |
java.version | 10-internal |
java.vm.name | OpenJDK 64-Bit Server VM |
java.vm.vendor | Oracle Corporation |
java.vm.version | 10-internal+0-adhoc.buildslave.jdk10 |
os.arch | aarch64 |
os.name | Linux |
os.version | 4.4.0-63-generic |
TC 1 | JVM options: [] Iterations: 5 Time: 200 |
TC 2 | JVM options: [-XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200 |
TC 3 | JVM options: [-XX:-TieredCompilation] Iterations: 5 Time: 200 |
TC 4 | JVM options: [-XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200 |
TC 5 | JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200 |
TC 6 | JVM options: [-Xint] Iterations: 5 Time: 200 |
Observed state | TC 1 | TC 2 | TC 3 | TC 4 | TC 5 | TC 6 | Expectation | Interpretation |
---|---|---|---|---|---|---|---|---|
-1, -1, null | 1508395 | 0 | 0 | 1204992 | 574498 | 3137 | ACCEPTABLE | Default value for guard, allowed to see anything. |
-1, -1, object | 3309723 | 2982231 | 3052747 | 3185905 | 2923272 | 38696 | ACCEPTABLE | Observing the value for guard, allowed to see latest value. |
0, -1, null | 0 | 0 | 0 | 0 | 0 | 32166 | ACCEPTABLE | Default value for guard, allowed to see anything. |
0, 0, null | 1577430 | 623267 | 160301 | 41111 | 1430028 | 18739 | ACCEPTABLE | Default value for guard, allowed to see anything. |
0, 0, object | 0 | 0 | 640 | 0 | 0 | 0 | ACCEPTABLE | Seeing previous writes, allowed with racy guard. |
OK | OK | OK | OK | OK | OK |