org.openjdk.jcstress.tests.atomicity.varHandles.byteArray.little.CASTest.CompareAndSetFloat

Tests atomicity of compareAndSet.

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 158009 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 692571 ACCEPTABLE actor1 update successfully
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 244996 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 1062904 ACCEPTABLE actor1 update successfully
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 129699 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 531491 ACCEPTABLE actor1 update successfully
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 306037 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 948303 ACCEPTABLE actor1 update successfully
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 301542 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 729388 ACCEPTABLE actor1 update successfully
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 99419 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 679361 ACCEPTABLE actor1 update successfully
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 80 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 34470 ACCEPTABLE actor1 update successfully
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 103155 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 178905 ACCEPTABLE actor1 update successfully
true, true, 2.0 0 FORBIDDEN not both shall succeed
true, true, 2.3509528E-38 0 FORBIDDEN not both shall succeed