Tests the mutual exclusion
| java.specification.name | Java Platform API Specification |
| java.specification.vendor | Oracle Corporation |
| java.specification.version | 15 |
| java.vendor | N/A |
| java.version | 15-internal |
| java.vm.name | OpenJDK 64-Bit Server VM |
| java.vm.vendor | Oracle Corporation |
| java.vm.version | 15-internal+0-adhoc.buildslave.jdkX |
| 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, 512] (capped by TIME) |
| TC 2 | JVM options: [-XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 1 Time: 10 Stride: [10, 8192] (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, 512] (capped by TIME) |
| Observed state | TC 1 | TC 2 | TC 3 | TC 4 | Expectation | Interpretation |
|---|---|---|---|---|---|---|
| -1, 1 | 451 | 191 | 1 | 4 | ACCEPTABLE | One of the threads fails to acquire the lock. Other thread had succeeded. |
| 0, 1 | 121 | 78 | 0 | 1 | ACCEPTABLE | T2 -> T1 execution |
| 1, -1 | 595 | 190 | 5 | ACCEPTABLE | One of the threads fails to acquire the lock. Other thread had succeeded. | |
| 1, 0 | 11378 | 180306 | 114688 | 11255 | ACCEPTABLE | T1 -> T2 execution |
| OK | OK | OK | OK |