Tests atomicity of compareAndExchange.
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 428449 | ACCEPTABLE | actor1 update successfully |
| C, , C | 168201 | ACCEPTABLE | actor2 update successfully |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 20245 | ACCEPTABLE | actor1 update successfully |
| C, , C | 12155 | ACCEPTABLE | actor2 update successfully |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 1140590 | ACCEPTABLE | actor1 update successfully |
| C, , C | 305360 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 1152300 | ACCEPTABLE | actor1 update successfully |
| C, , C | 1049630 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 534602 | ACCEPTABLE | actor1 update successfully |
| C, , C | 286718 | ACCEPTABLE | actor2 update successfully |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 717900 | ACCEPTABLE | actor1 update successfully |
| C, , C | 226460 | 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 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 2282789 | ACCEPTABLE | actor1 update successfully |
| C, , C | 476631 | ACCEPTABLE | actor2 update successfully |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| , , | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , A | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , , C | 0 | FORBIDDEN | This won't happen because compareAndExchange is atomic |
| , A, A | 918466 | ACCEPTABLE | actor1 update successfully |
| C, , C | 563964 | ACCEPTABLE | actor2 update successfully |