Tests the mutual exclusion
| java.specification.name | Java Platform API Specification |
| java.specification.vendor | Oracle Corporation |
| java.specification.version | 13 |
| java.vendor | N/A |
| java.version | 13-internal |
| java.vm.name | OpenJDK 64-Bit Server VM |
| java.vm.vendor | Oracle Corporation |
| java.vm.version | 13-internal+0-adhoc.buildslave.jdk13 |
| os.arch | aarch64 |
| os.name | Linux |
| os.version | 4.16.0-290-arm64 |
| TC 1 | JVM options: [-XX:-TieredCompilation] Iterations: 1 Time: 10 Stride: [10, 10000] (capped by NONE) |
| TC 2 | JVM options: [-XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 1 Time: 10 Stride: [10, 2048] (capped by TIME) |
| TC 3 | JVM options: [-XX:TieredStopAtLevel=1] Iterations: 1 Time: 10 Stride: [10, 4096] (capped by TIME) |
| TC 4 | JVM options: [-Xint] Iterations: 1 Time: 10 Stride: [10, 128] (capped by TIME) |
| Observed state | TC 1 | TC 2 | TC 3 | TC 4 | Expectation | Interpretation |
|---|---|---|---|---|---|---|
| -1, -1 | 23 | 3 | 870 | 3 | ACCEPTABLE | One of the threads fails to acquire the lock. Other thread had succeeded. |
| -1, 1 | 534 | 8 | 1116 | 4 | ACCEPTABLE | One of the threads fails to acquire the lock. Other thread had succeeded. |
| 0, 1 | 29 | 31 | 796 | 0 | ACCEPTABLE | T2 -> T1 execution |
| 1, -1 | 615 | 7 | 1079 | 2 | ACCEPTABLE | One of the threads fails to acquire the lock. Other thread had succeeded. |
| 1, 0 | 327780 | 45068 | 140334 | 3320 | ACCEPTABLE | T1 -> T2 execution |
| OK | OK | OK | OK |