org.openjdk.jcstress.tests.atomicity.varHandles.byteBuffer.heap.big.WeakCASTest.WeakCompareAndSetReleaseFloat

Tests atomicity of weakCompareAndSet.

JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
false, false, 0.0 126 ACCEPTABLE both may fail
false, true, 2.0 166306 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 909108 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 ACCEPTABLE both may fail
false, true, 2.0 304 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 16006 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 42 ACCEPTABLE both may fail
false, true, 2.0 97969 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 286519 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, 0.0 198 ACCEPTABLE both may fail
false, true, 2.0 209348 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 655324 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, 0.0 174 ACCEPTABLE both may fail
false, true, 2.0 245833 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 744893 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, 0.0 102 ACCEPTABLE both may fail
false, true, 2.0 55850 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 262158 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 ACCEPTABLE both may fail
false, true, 2.0 82190 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 1123950 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, 0.0 459 ACCEPTABLE both may fail
false, true, 2.0 231704 ACCEPTABLE actor2 update successfully
true, false, 2.3509528E-38 1560347 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