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| 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, 2048] (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, | 0 | 0 | 1 | 0 | ACCEPTABLE | Default value for guard, allowed to see anything. |
| -1, -1, A | 75374 | 180234 | 91690 | 11265 | ACCEPTABLE | Observing the value for guard, allowed to see latest value. |
| 0, -1, | 1 | 0 | 151 | 0 | ACCEPTABLE | Default value for guard, allowed to see anything. |
| 0, -1, A | 1 | 1 | 19 | 0 | ACCEPTABLE | Observing the value for guard, allowed to see latest value. |
| 0, 0, | 124 | 0 | 952 | 0 | ACCEPTABLE | Default value for guard, allowed to see anything. |
| 0, 0, A | 69 | 0 | 0 | 0 | ACCEPTABLE | Seeing previous writes, allowed with racy guard. |
| OK | OK | OK | OK |