Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/rtm/locking/TestRTMAbortRatio.java@dbb05f6d93c4 (annotated)

test/compiler/rtm/locking/TestRTMAbortRatio.java

Mon, 28 Jul 2014 15:06:38 -0700

author
fzhinkin
date
Mon, 28 Jul 2014 15:06:38 -0700
changeset 6997
dbb05f6d93c4
parent 0
f90c822e73f8
child 7798
9041e030d11f
permissions
-rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@0 25 /**
aoqi@0 26 * @test
aoqi@0 27 * @bug 8031320
aoqi@0 28 * @summary Verify that RTMAbortRatio affects amount of aborts before
aoqi@0 29 * deoptimization.
aoqi@0 30 * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
aoqi@0 31 * @build TestRTMAbortRatio
aoqi@0 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0 33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
aoqi@0 34 * -XX:+WhiteBoxAPI TestRTMAbortRatio
aoqi@0 35 */
aoqi@0 36
aoqi@0 37 import java.util.List;
aoqi@0 38 import com.oracle.java.testlibrary.*;
aoqi@0 39 import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
aoqi@0 40 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
aoqi@0 41 import rtm.*;
aoqi@0 42 import rtm.predicate.SupportedCPU;
aoqi@0 43 import rtm.predicate.SupportedVM;
aoqi@0 44 import sun.misc.Unsafe;
aoqi@0 45
aoqi@0 46 /**
aoqi@0 47 * Test verifies that method will be deoptimized on high abort ratio
aoqi@0 48 * as soon as abort ratio reaches RTMAbortRatio's value.
aoqi@0 49 */
aoqi@0 50 public class TestRTMAbortRatio extends CommandLineOptionTest {
aoqi@0 51 private TestRTMAbortRatio() {
aoqi@0 52 super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
aoqi@0 53 }
aoqi@0 54
aoqi@0 55 @Override
aoqi@0 56 protected void runTestCases() throws Throwable {
aoqi@0 57 verifyAbortRatio(0, false);
aoqi@0 58 verifyAbortRatio(10, false);
aoqi@0 59 verifyAbortRatio(50, false);
aoqi@0 60 verifyAbortRatio(100, false);
aoqi@0 61
aoqi@0 62 verifyAbortRatio(0, true);
aoqi@0 63 verifyAbortRatio(10, true);
aoqi@0 64 verifyAbortRatio(50, true);
aoqi@0 65 verifyAbortRatio(100, true);
aoqi@0 66 }
aoqi@0 67
aoqi@0 68 private void verifyAbortRatio(int abortRatio, boolean useStackLock)
aoqi@0 69 throws Throwable {
aoqi@0 70 CompilableTest test = new Test();
aoqi@0 71
aoqi@0 72 OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
aoqi@0 73 test,
aoqi@0 74 CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks",
aoqi@0 75 useStackLock),
aoqi@0 76 "-XX:+UseRTMDeopt",
aoqi@0 77 "-XX:RTMTotalCountIncrRate=1",
aoqi@0 78 "-XX:RTMAbortThreshold=0",
aoqi@0 79 CommandLineOptionTest.prepareNumericFlag("RTMLockingThreshold",
aoqi@0 80 10 * Test.TOTAL_ITERATIONS),
aoqi@0 81 CommandLineOptionTest.prepareNumericFlag("RTMAbortRatio",
aoqi@0 82 abortRatio),
aoqi@0 83 "-XX:+PrintPreciseRTMLockingStatistics",
aoqi@0 84 test.getClass().getName(),
aoqi@0 85 Boolean.toString(!useStackLock));
aoqi@0 86
aoqi@0 87 outputAnalyzer.shouldHaveExitValue(0);
aoqi@0 88
aoqi@0 89 List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
aoqi@0 90 test.getMethodWithLockName(), outputAnalyzer.getOutput());
aoqi@0 91
aoqi@0 92 Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
aoqi@0 93 + "exactly one RTM locking statistics entry.");
aoqi@0 94
aoqi@0 95 RTMLockingStatistics lock = statistics.get(0);
aoqi@0 96 int actualRatio;
aoqi@0 97
aoqi@0 98 if (lock.getTotalAborts() == 1L) {
aoqi@0 99 actualRatio = 0;
aoqi@0 100 } else {
aoqi@0 101 actualRatio = (int) (lock.getTotalLocks()
aoqi@0 102 / (lock.getTotalAborts() - 1L));
aoqi@0 103 }
aoqi@0 104
aoqi@0 105 Asserts.assertLTE(actualRatio, abortRatio, String.format(
aoqi@0 106 "Actual abort ratio (%d) should lower or equal to "
aoqi@0 107 + "specified (%d).", actualRatio, abortRatio));
aoqi@0 108 }
aoqi@0 109
aoqi@0 110 /**
aoqi@0 111 * Force abort after {@code Test.WARMUP_ITERATIONS} is done.
aoqi@0 112 */
aoqi@0 113 public static class Test implements CompilableTest {
aoqi@0 114 private static final int TOTAL_ITERATIONS = 10000;
aoqi@0 115 private static final int WARMUP_ITERATIONS = 1000;
aoqi@0 116 private static final Unsafe UNSAFE = Utils.getUnsafe();
aoqi@0 117 private final Object monitor = new Object();
aoqi@0 118 // Following field have to be static in order to avoid escape analysis.
aoqi@0 119 @SuppressWarnings("UnsuedDeclaration")
aoqi@0 120 private static int field = 0;
aoqi@0 121
aoqi@0 122 @Override
aoqi@0 123 public String getMethodWithLockName() {
aoqi@0 124 return this.getClass().getName() + "::lock";
aoqi@0 125 }
aoqi@0 126
aoqi@0 127 @Override
aoqi@0 128 public String[] getMethodsToCompileNames() {
aoqi@0 129 return new String[] {
aoqi@0 130 getMethodWithLockName(),
aoqi@0 131 Unsafe.class.getName() + "::addressSize"
aoqi@0 132 };
aoqi@0 133 }
aoqi@0 134
aoqi@0 135 public void lock(boolean abort) {
aoqi@0 136 synchronized(monitor) {
aoqi@0 137 if (abort) {
aoqi@0 138 Test.UNSAFE.addressSize();
aoqi@0 139 }
aoqi@0 140 }
aoqi@0 141 }
aoqi@0 142
aoqi@0 143 /**
aoqi@0 144 * Usage:
aoqi@0 145 * Test &lt;inflate monitor&gt;
aoqi@0 146 */
aoqi@0 147 public static void main(String args[]) throws Throwable {
aoqi@0 148 Asserts.assertGTE(args.length, 1, "One argument required.");
aoqi@0 149 Test t = new Test();
aoqi@0 150 if (Boolean.valueOf(args[0])) {
aoqi@0 151 AbortProvoker.inflateMonitor(t.monitor);
aoqi@0 152 }
aoqi@0 153 for (int i = 0; i < Test.TOTAL_ITERATIONS; i++) {
aoqi@0 154 t.lock(i >= Test.WARMUP_ITERATIONS);
aoqi@0 155 }
aoqi@0 156 }
aoqi@0 157 }
aoqi@0 158
aoqi@0 159 public static void main(String args[]) throws Throwable {
aoqi@0 160 new TestRTMAbortRatio().test();
aoqi@0 161 }
aoqi@0 162 }
aoqi@0 163

Mercurial Repository: jdk8-mips64-public/hotspot

mercurial