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 | 235121 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 18189 | 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 | 391047 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 50733 | 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 | 161107 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 30453 | 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 | 90623 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 89387 | 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 | 345499 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 88921 | 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 | 70575 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 6695 | 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 | 22855 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 105 | 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 | 300776 | ACCEPTABLE | actor1 update successfully |
| 2.0, 0.0, 2.0 | 122764 | ACCEPTABLE | actor2 update successfully |