Tests atomicity of weakCompareAndSet.
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 96320 | ACCEPTABLE | both may fail |
| false, true, 2 | 257029 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 679791 | 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 | 48804 | ACCEPTABLE | both may fail |
| false, true, 2 | 227032 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 590874 | 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 | 1727 | ACCEPTABLE | both may fail |
| false, true, 2 | 52461 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 91552 | 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 | 53114 | ACCEPTABLE | both may fail |
| false, true, 2 | 343920 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 447246 | 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 | 266812 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 432888 | 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 | 145994 | ACCEPTABLE | both may fail |
| false, true, 2 | 228243 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 999533 | 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 | 43602 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 40578 | 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] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 2223 | ACCEPTABLE | both may fail |
| false, true, 2 | 89929 | ACCEPTABLE | actor2 update successfully |
| true, false, -1 | 162118 | ACCEPTABLE | actor1 update successfully |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |