Tests atomicity of compareAndExchange.
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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 1107696 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 455194 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 22655 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 115 | ACCEPTABLE | actor2 update successfully |
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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 465803 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 146157 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 730497 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 295833 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 1027345 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 106225 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 133188 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 347512 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 1094871 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 247579 | 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, 1.39067116124321E-309 | 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, 1.39067116124321E-309, 1.39067116124321E-309 | 376251 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 138829 | ACCEPTABLE | actor2 update successfully |