Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 45993 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 91707 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 58616 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 18844 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 120244 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 861616 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 76619 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 552771 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 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, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 69429 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 386721 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 558663 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 689927 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 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, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 75040 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 670730 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 146363 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 824397 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |