org.openjdk.jcstress.tests.atomicity.varHandles.byteBuffer.direct.little.CASTest.CompareAndSetFloat

Tests atomicity of compareAndSet.

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 91778 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 360442 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: [-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 9319 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 187201 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 103274 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 260546 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 68 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 29612 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 107053 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 291947 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 112627 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 355233 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 20659 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 191811 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 52429 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 253961 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