28 * @summary Verify that RTMSpinLoopCount affects time spent
29 * between locking attempts.
30 * @library /test/lib /
31 * @modules java.base/jdk.internal.misc
32 * java.management
33 * @build sun.hotspot.WhiteBox
34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
35 * sun.hotspot.WhiteBox$WhiteBoxPermission
36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
37 * -XX:+WhiteBoxAPI
38 * compiler.rtm.locking.TestRTMSpinLoopCount
39 */
40
41 package compiler.rtm.locking;
42
43 import compiler.testlibrary.rtm.BusyLock;
44 import compiler.testlibrary.rtm.CompilableTest;
45 import compiler.testlibrary.rtm.RTMLockingStatistics;
46 import compiler.testlibrary.rtm.RTMTestBase;
47 import compiler.testlibrary.rtm.predicate.SupportedCPU;
48 import compiler.testlibrary.rtm.predicate.SupportedVM;
49 import jdk.test.lib.Asserts;
50 import jdk.test.lib.process.OutputAnalyzer;
51 import jdk.test.lib.cli.CommandLineOptionTest;
52 import jdk.test.lib.cli.predicate.AndPredicate;
53
54 import java.util.List;
55
56 /**
57 * Test verifies that RTMSpinLoopCount increase time spent between retries
58 * by comparing amount of retries done with different RTMSpinLoopCount's values.
59 */
60 public class TestRTMSpinLoopCount extends CommandLineOptionTest {
61 private static final int LOCKING_TIME = 1000;
62 private static final int RTM_RETRY_COUNT = 1000;
63 private static final boolean INFLATE_MONITOR = true;
64 private static final long MAX_ABORTS = RTM_RETRY_COUNT + 1L;
65 private static final int[] SPIN_LOOP_COUNTS
66 = new int[] { 0, 100, 1_000, 1_000_000, 10_000_000 };
67
68 private TestRTMSpinLoopCount() {
69 super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
70 }
71
72 @Override
73 protected void runTestCases() throws Throwable {
74 long[] aborts = new long[TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length];
75 for (int i = 0; i < TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length; i++) {
76 aborts[i] = getAbortsCountOnLockBusy(
77 TestRTMSpinLoopCount.SPIN_LOOP_COUNTS[i]);
78 }
79
80 for (int i = 1; i < aborts.length; i++) {
81 Asserts.assertLTE(aborts[i], aborts[i - 1], "Increased spin loop "
82 + "count should not increase retries count.");
83 }
84 }
85
86 private long getAbortsCountOnLockBusy(int spinLoopCount) throws Throwable {
87 CompilableTest test = new BusyLock();
88
89 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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28 * @summary Verify that RTMSpinLoopCount affects time spent
29 * between locking attempts.
30 * @library /test/lib /
31 * @modules java.base/jdk.internal.misc
32 * java.management
33 * @build sun.hotspot.WhiteBox
34 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
35 * sun.hotspot.WhiteBox$WhiteBoxPermission
36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
37 * -XX:+WhiteBoxAPI
38 * compiler.rtm.locking.TestRTMSpinLoopCount
39 */
40
41 package compiler.rtm.locking;
42
43 import compiler.testlibrary.rtm.BusyLock;
44 import compiler.testlibrary.rtm.CompilableTest;
45 import compiler.testlibrary.rtm.RTMLockingStatistics;
46 import compiler.testlibrary.rtm.RTMTestBase;
47 import compiler.testlibrary.rtm.predicate.SupportedCPU;
48 import compiler.testlibrary.rtm.predicate.SupportedOS;
49 import compiler.testlibrary.rtm.predicate.SupportedVM;
50 import jdk.test.lib.Asserts;
51 import jdk.test.lib.process.OutputAnalyzer;
52 import jdk.test.lib.cli.CommandLineOptionTest;
53 import jdk.test.lib.cli.predicate.AndPredicate;
54
55 import java.util.List;
56
57 /**
58 * Test verifies that RTMSpinLoopCount increase time spent between retries
59 * by comparing amount of retries done with different RTMSpinLoopCount's values.
60 */
61 public class TestRTMSpinLoopCount extends CommandLineOptionTest {
62 private static final int LOCKING_TIME = 1000;
63 private static final int RTM_RETRY_COUNT = 1000;
64 private static final boolean INFLATE_MONITOR = true;
65 private static final long MAX_ABORTS = RTM_RETRY_COUNT + 1L;
66 private static final int[] SPIN_LOOP_COUNTS
67 = new int[] { 0, 100, 1_000, 1_000_000, 10_000_000 };
68
69 private TestRTMSpinLoopCount() {
70 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM()));
71 }
72
73 @Override
74 protected void runTestCases() throws Throwable {
75 long[] aborts = new long[TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length];
76 for (int i = 0; i < TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length; i++) {
77 aborts[i] = getAbortsCountOnLockBusy(
78 TestRTMSpinLoopCount.SPIN_LOOP_COUNTS[i]);
79 }
80
81 for (int i = 1; i < aborts.length; i++) {
82 Asserts.assertLTE(aborts[i], aborts[i - 1], "Increased spin loop "
83 + "count should not increase retries count.");
84 }
85 }
86
87 private long getAbortsCountOnLockBusy(int spinLoopCount) throws Throwable {
88 CompilableTest test = new BusyLock();
89
90 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
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