Tests atomicity of weakCompareAndSet.
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 1764 | ACCEPTABLE | both may fail |
| false, true, -2 | 204743 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1141293 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | ACCEPTABLE | both may fail |
| false, true, -2 | 412620 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 890990 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 781 | ACCEPTABLE | both may fail |
| false, true, -2 | 238753 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1152236 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 506 | ACCEPTABLE | both may fail |
| false, true, -2 | 65694 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 313070 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | ACCEPTABLE | both may fail |
| false, true, -2 | 57621 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 35799 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 152 | ACCEPTABLE | both may fail |
| false, true, -2 | 325383 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 550045 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 1518 | ACCEPTABLE | both may fail |
| false, true, -2 | 185905 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1437397 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 1279 | ACCEPTABLE | both may fail |
| false, true, -2 | 164685 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 451966 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |