Tests atomicity of compareAndExchange.
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 112868 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 389602 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 159446 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 260184 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 44655 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 113045 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 139775 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 701525 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 8082 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 12038 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 18976 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 22494 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 187312 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 586168 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 161250 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 404930 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, -2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |