org.openjdk.jcstress.tests.atomicity.varHandles.byteBuffer.direct.little.GetAndAddTest.GetAndAddInt

Tests atomicity of getAndAdd.

JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 66574 ACCEPTABLE actor1 execute after actor2
0, -1, -2 341506 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

JVM options: [-server] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 46686 ACCEPTABLE actor1 execute after actor2
0, -1, -2 144664 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

JVM options: [-client] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 43100 ACCEPTABLE actor1 execute after actor2
0, -1, -2 245240 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

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

Observed state Occurrence Expectation Interpretation
-1, 0, -2 108468 ACCEPTABLE actor1 execute after actor2
0, -1, -2 304692 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

JVM options: [-Xint] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 23357 ACCEPTABLE actor1 execute after actor2
0, -1, -2 8113 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 43185 ACCEPTABLE actor1 execute after actor2
0, -1, -2 130475 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200

Observed state Occurrence Expectation Interpretation
-1, 0, -2 47803 ACCEPTABLE actor1 execute after actor2
0, -1, -2 166997 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic

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

Observed state Occurrence Expectation Interpretation
-1, 0, -2 89933 ACCEPTABLE actor1 execute after actor2
0, -1, -2 356457 ACCEPTABLE actor1 execute before actor2
0, 0, -1 0 FORBIDDEN This won't happen because getAndAdd is atomic