Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 63 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 87687 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 336939 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 713731 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 196507 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 349553 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 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, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 383995 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 1167005 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 335779 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 1128681 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 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, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 993938 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 1528372 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 526160 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 894620 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 353988 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 1729642 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, 2.0 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2.3509528E-38 | 0 | FORBIDDEN | not both shall succeed |