Tests atomicity of compareAndExchange.
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 | 153125 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 8275 | 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 | 272763 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 50657 | 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 | 20076 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 94 | 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 | 261757 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 183733 | 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, 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 | 48917 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 23013 | 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 | 271382 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 17478 | 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 | 381375 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 77385 | 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 | 263420 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 74870 | ACCEPTABLE | actor2 update successfully |