Tests weakCompareAndSet contend with strong compareAndSet.
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 | 314010 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 604940 | 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 | 300194 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 686396 | 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 | 90936 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 1199434 | 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 | 609095 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 995815 | 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 | 199932 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 363218 | 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 | 331846 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 533024 | 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 | 149430 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 437250 | 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: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0.0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2.0 | 100 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, 2.3509528E-38 | 28410 | 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 |