Tests atomicity of compareAndExchange.
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| -2, 0, -2 | 114259 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 742621 | 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 | 48969 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 97061 | 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 | 110603 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 342067 | 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 | 16404 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 17716 | 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 | 255351 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 492379 | 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 | 160804 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 593436 | 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 | 48591 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 110459 | 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 | 138524 | ACCEPTABLE | actor2 update successfully |
| 0, -1, -1 | 361486 | 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 |