org.openjdk.jcstress.tests.fences.varHandles.LoadLoadFenceTest.LoadLoadFenceByte

Description and references

Tests VarHandle methods which take effect of load load fence.

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
-1, -1 5979863 4610911 3628711 4154876 5072875 87558 ACCEPTABLE actor2 observe the variables after actor1 update completely
0, -1 213763 8040 13256 313 43741 7683 ACCEPTABLE actor2 observe the variables after x is already updated but var hasn't yet
0, 0 218812 15977 84601 83989 66442 7277 ACCEPTABLE actor2 observe the variables before actor1 update
OK OK OK OK OK OK

Auxiliary data