org.openjdk.jcstress.tests.coherence.varHandles.byteBuffer.heap.big.acqrel.DoubleTest

Description and references

null

Environment

java.specification.name Java Platform API Specification
java.specification.vendor Oracle Corporation
java.specification.version 10
java.vendor Oracle Corporation
java.version 10-internal
java.vm.name OpenJDK 64-Bit Server VM
java.vm.vendor Oracle Corporation
java.vm.version 10-internal+0-adhoc.buildslave.jdk10
os.arch aarch64
os.name Linux
os.version 4.4.0-63-generic

Test configurations

TC 1 JVM options: [] Iterations: 5 Time: 200
TC 2 JVM options: [-XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
TC 3 JVM options: [-XX:-TieredCompilation] Iterations: 5 Time: 200
TC 4 JVM options: [-XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
TC 5 JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
TC 6 JVM options: [-Xint] Iterations: 5 Time: 200

Observed states

Observed state TC 1 TC 2 TC 3 TC 4 TC 5 TC 6 Expectation Interpretation
0.0, 0.0 93009 399905 37189 5820 7483 78 ACCEPTABLE Default value for the fields. Allowed to see this: data race.
0.0, 1.39067116124321E-309 18797 9589 26103 2153 3932 1940 ACCEPTABLE Observe second read, but not first: sequential consistency.
1.39067116124321E-309, 1.39067116124321E-309 1861152 2472454 2722616 1481325 2048053 51890 ACCEPTABLE Observers sees both read.
OK OK OK OK OK OK

Auxiliary data