Tests atomicity of compareAndExchange.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 331324 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 126686 | ACCEPTABLE | actor2 update successfully |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 20218 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 72 | ACCEPTABLE | actor2 update successfully |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 328958 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 246342 | ACCEPTABLE | actor2 update successfully |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 736180 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 287100 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 679489 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 150341 | ACCEPTABLE | actor2 update successfully |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 444062 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 44598 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 504633 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 220547 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0.0, 0.0, 0.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 0.0, 2.3509528E-38 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0.0, 2.3509528E-38, 2.3509528E-38 | 1065634 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 400246 | ACCEPTABLE | actor2 update successfully |