org.openjdk.jcstress.tests.fences.varHandles.StoreLoadFenceTest.FullFenceFloat

Description and references

Tests VarHandle methods which take effect of store load fence.

Environment

java.specification.name Java Platform API Specification
java.specification.vendor Oracle Corporation
java.specification.version 14
java.vendor N/A
java.version 14.0.1-internal
java.vm.name OpenJDK 64-Bit Server VM
java.vm.vendor Oracle Corporation
java.vm.version 14.0.1-internal+0-adhoc.buildslave.jdk14
os.arch aarch64
os.name Linux
os.version 4.16.0-290-arm64

Test configurations

TC 1 JVM options: [-XX:-TieredCompilation] Iterations: 1 Time: 10 Stride: [10, 32] (capped by TIME)
TC 2 JVM options: [-XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 1 Time: 10 Stride: [10, 256] (capped by TIME)
TC 3 JVM options: [-XX:TieredStopAtLevel=1] Iterations: 1 Time: 10 Stride: [10, 1024] (capped by TIME)
TC 4 JVM options: [-Xint] Iterations: 1 Time: 10 Stride: [10, 256] (capped by TIME)

Observed states

Observed state TC 1 TC 2 TC 3 TC 4 Expectation Interpretation
0.0, 2.3509528E-38 759 10231 26615 7671 ACCEPTABLE actor2 observe actor1 update, actor1 not yet observe actor2 update
2.3509528E-38, 0.0 10 9 2 9 ACCEPTABLE actor1 observe actor2 update, actor2 not yet observe actor1 update
2.3509528E-38, 2.3509528E-38 0 1 8 1 ACCEPTABLE both actor1 and actor2 observe each other update
OK OK OK OK

Auxiliary data