Tests atomicity of weakCompareAndSet.
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 68724 | ACCEPTABLE | both may fail |
| false, true, -2 | 588818 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 780178 | 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 | 42292 | ACCEPTABLE | both may fail |
| false, true, -2 | 329727 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 472181 | 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 | 283191 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1052189 | 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 | 35744 | ACCEPTABLE | both may fail |
| false, true, -2 | 374446 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 455830 | 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 | 5444 | ACCEPTABLE | both may fail |
| false, true, -2 | 112299 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 119957 | 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 | 16793 | ACCEPTABLE | both may fail |
| false, true, -2 | 922935 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 1081002 | 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 | 18127 | ACCEPTABLE | both may fail |
| false, true, -2 | 162361 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 221522 | 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 | 24124 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 14546 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, -2 | 0 | FORBIDDEN | not both shall succeed |