Tests VarHandle methods which take effect of load store fence.
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 1693089 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 471051 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 35169 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 21061 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 2204692 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 579608 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 113184 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 1476 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 954533 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 651027 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 936488 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 216872 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 815471 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 619559 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false | 2314659 | ACCEPTABLE | load var in actor2 before store true to var in actor1, all results are false |
| false, true | 0 | FORBIDDEN | this won't happen even if load x after store var because only if r1 = true x may be assigned to true and then r2 can be true from x. |
| true, false | 235191 | ACCEPTABLE | store true to var in actor1 before load var in actor2 |
| true, true | 0 | FORBIDDEN | can't load x after store var in actor1. |