Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 39043 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 17047 | 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] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, false | 0 | FORBIDDEN | not both shall fail |
| false, true, true | 146236 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 1013764 | 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 | 185766 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 1250044 | 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 | 190655 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 336185 | 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 | 334581 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 646359 | 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 | 138221 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 1069259 | 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 | 193828 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 1341972 | 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 | 303365 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, true | 396655 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |
| true, true, true | 0 | FORBIDDEN | not both shall succeed |