12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @bug 8031320
27 * @summary Verify that on high abort ratio method will be recompiled
28 * without rtm locking.
29 * @library /test/lib /
30 * @modules java.base/jdk.internal.misc
31 * java.management
32 * @build sun.hotspot.WhiteBox
33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
34 * sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 * -XX:+WhiteBoxAPI
37 * compiler.rtm.locking.TestRTMDeoptOnHighAbortRatio
38 */
39
40 package compiler.rtm.locking;
41
42 import compiler.testlibrary.rtm.AbortProvoker;
43 import compiler.testlibrary.rtm.AbortType;
44 import compiler.testlibrary.rtm.RTMLockingStatistics;
45 import compiler.testlibrary.rtm.RTMTestBase;
46 import compiler.testlibrary.rtm.predicate.SupportedCPU;
47 import compiler.testlibrary.rtm.predicate.SupportedOS;
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 on high abort ratio method wil be deoptimized with
58 * <i>rtm_state_change</i> reason and after that RTM-based lock elision will not
59 * be used for that method.
60 * This test make asserts on total locks count done by compiled method,
61 * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used.
62 * For more details on that issue see {@link TestUseRTMAfterLockInflation}.
63 */
64 public class TestRTMDeoptOnHighAbortRatio extends CommandLineOptionTest {
65 private static final long ABORT_THRESHOLD
66 = AbortProvoker.DEFAULT_ITERATIONS / 2L;
67
68 private TestRTMDeoptOnHighAbortRatio() {
69 super(new AndPredicate(new SupportedCPU(), new SupportedOS(), new SupportedVM()));
70 }
71
72 @Override
73 protected void runTestCases() throws Throwable {
74 verifyDeopt(false);
75 verifyDeopt(true);
76 }
77
78 private void verifyDeopt(boolean useStackLock) throws Throwable {
79 AbortProvoker provoker = AbortType.XABORT.provoker();
80 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
81 (useStackLock ? "use" : "no"));
82
83 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
84 logFileName,
85 provoker,
86 "-XX:+UseRTMDeopt",
87 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
88 useStackLock),
89 "-XX:RTMRetryCount=0",
90 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
91 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD),
92 "-XX:RTMAbortRatio=100",
102
103 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
104
105 Asserts.assertEQ(firedTraps, 1, "Expected to get only one "
106 + "deoptimization due to rtm state change");
107
108 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
109 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
110
111 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
112 + "exactly one RTM locking statistics entry for method "
113 + provoker.getMethodWithLockName());
114
115 Asserts.assertEQ(statistics.get(0).getTotalLocks(),
116 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD,
117 "After AbortThreshold was reached, method should be"
118 + " recompiled without rtm lock eliding.");
119 }
120
121 public static void main(String args[]) throws Throwable {
122 new TestRTMDeoptOnHighAbortRatio().test();
123 }
124 }
125
|
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @bug 8031320
27 * @summary Verify that on high abort ratio method will be recompiled
28 * without rtm locking.
29 * @library /test/lib /
30 * @modules java.base/jdk.internal.misc
31 * java.management
32 * @requires vm.flavor == "server" & !vm.emulatedClient & vm.rtm.cpu & vm.rtm.os
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.TestRTMDeoptOnHighAbortRatio
39 */
40
41 package compiler.rtm.locking;
42
43 import compiler.testlibrary.rtm.AbortProvoker;
44 import compiler.testlibrary.rtm.AbortType;
45 import compiler.testlibrary.rtm.RTMLockingStatistics;
46 import compiler.testlibrary.rtm.RTMTestBase;
47 import jdk.test.lib.Asserts;
48 import jdk.test.lib.process.OutputAnalyzer;
49 import jdk.test.lib.cli.CommandLineOptionTest;
50
51 import java.util.List;
52
53 /**
54 * Test verifies that on high abort ratio method wil be deoptimized with
55 * <i>rtm_state_change</i> reason and after that RTM-based lock elision will not
56 * be used for that method.
57 * This test make asserts on total locks count done by compiled method,
58 * so in order to avoid issue with retriable locks -XX:RTMRetryCount=0 is used.
59 * For more details on that issue see {@link TestUseRTMAfterLockInflation}.
60 */
61 public class TestRTMDeoptOnHighAbortRatio {
62 private static final long ABORT_THRESHOLD
63 = AbortProvoker.DEFAULT_ITERATIONS / 2L;
64
65 protected void runTestCases() throws Throwable {
66 verifyDeopt(false);
67 verifyDeopt(true);
68 }
69
70 private void verifyDeopt(boolean useStackLock) throws Throwable {
71 AbortProvoker provoker = AbortType.XABORT.provoker();
72 String logFileName = String.format("rtm_deopt_%s_stack_lock.xml",
73 (useStackLock ? "use" : "no"));
74
75 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
76 logFileName,
77 provoker,
78 "-XX:+UseRTMDeopt",
79 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
80 useStackLock),
81 "-XX:RTMRetryCount=0",
82 CommandLineOptionTest.prepareNumericFlag("RTMAbortThreshold",
83 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD),
84 "-XX:RTMAbortRatio=100",
94
95 int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName);
96
97 Asserts.assertEQ(firedTraps, 1, "Expected to get only one "
98 + "deoptimization due to rtm state change");
99
100 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
101 provoker.getMethodWithLockName(), outputAnalyzer.getOutput());
102
103 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
104 + "exactly one RTM locking statistics entry for method "
105 + provoker.getMethodWithLockName());
106
107 Asserts.assertEQ(statistics.get(0).getTotalLocks(),
108 TestRTMDeoptOnHighAbortRatio.ABORT_THRESHOLD,
109 "After AbortThreshold was reached, method should be"
110 + " recompiled without rtm lock eliding.");
111 }
112
113 public static void main(String args[]) throws Throwable {
114 new TestRTMDeoptOnHighAbortRatio().runTestCases();
115 }
116 }
117
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