Tests atomicity of compareAndExchange.
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 420622 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 194278 | ACCEPTABLE | actor2 update successfully |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 653977 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 377653 | ACCEPTABLE | actor2 update successfully |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 962474 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 373056 | ACCEPTABLE | actor2 update successfully |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 26504 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 21436 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 266549 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 129891 | 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, -1, -1 | 409548 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 124452 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 955841 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 600899 | ACCEPTABLE | actor2 update successfully |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| 0, -1, -1 | 567998 | ACCEPTABLE | actor1 update successfully |
| 0, 0, -1 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 0 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 0, 0, 2 | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| 2, 0, 2 | 351772 | ACCEPTABLE | actor2 update successfully |