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/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
/**
* @test
* @bug 8031320
* @summary Verify that rtm locking statistics contain proper information
* on overall aborts and locks count and count of aborts of
* different types. Test also verify that VM output does not
* contain rtm locking statistics when it should not.
* @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
* @build TestPrintPreciseRTMLockingStatistics
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
* -XX:+WhiteBoxAPI TestPrintPreciseRTMLockingStatistics
*/
import java.util.*;
import com.oracle.java.testlibrary.*;
import com.oracle.java.testlibrary.cli.CommandLineOptionTest;
import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
import rtm.*;
import rtm.predicate.SupportedCPU;
import rtm.predicate.SupportedVM;
/**
* Test verifies that VM output does not contain RTM locking statistics when it
* should not (when PrintPreciseRTMLockingStatistics is off) and that with
* -XX:+PrintPreciseRTMLockingStatistics locking statistics contains sane
* total locks and aborts count as well as for specific abort types.
*/
public class TestPrintPreciseRTMLockingStatistics
extends CommandLineOptionTest {
private TestPrintPreciseRTMLockingStatistics() {
super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
}
@Override
public void runTestCases() throws Throwable {
verifyNoStatistics();
verifyStatistics();
}
// verify that VM output does not contain
// rtm locking statistics
private void verifyNoStatistics() throws Throwable {
verifyNoStatistics(AbortType.XABORT);
verifyNoStatistics(AbortType.XABORT,
"-XX:-PrintPreciseRTMLockingStatistics");
verifyNoStatistics(AbortType.XABORT, "-XX:-UseRTMLocking",
"-XX:+PrintPreciseRTMLockingStatistics");
}
// verify that rtm locking statistics contain information
// about each type of aborts
private void verifyStatistics() throws Throwable {
verifyAbortsCount(AbortType.XABORT);
verifyAbortsCount(AbortType.MEM_CONFLICT);
verifyAbortsCount(AbortType.BUF_OVERFLOW);
verifyAbortsCount(AbortType.NESTED_ABORT);
}
private void verifyNoStatistics(AbortType abortProvokerType,
String... vmOpts) throws Throwable {
AbortProvoker provoker = abortProvokerType.provoker();
List<String> finalVMOpts = new LinkedList<>();
Collections.addAll(finalVMOpts, vmOpts);
Collections.addAll(finalVMOpts, AbortProvoker.class.getName(),
abortProvokerType.toString());
OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(provoker,
finalVMOpts.toArray(new String[finalVMOpts.size()]));
outputAnalyzer.shouldHaveExitValue(0);
List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
outputAnalyzer.getOutput());
Asserts.assertEQ(statistics.size(), 0, "VM output should not contain "
+ "any RTM locking statistics");
}
private void verifyAbortsCount(AbortType abortType) throws Throwable {
AbortProvoker provoker = abortType.provoker();
OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
provoker,
"-XX:+PrintPreciseRTMLockingStatistics",
AbortProvoker.class.getName(),
abortType.toString());
outputAnalyzer.shouldHaveExitValue(0);
List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
provoker.getMethodWithLockName(),outputAnalyzer.getOutput());
Asserts.assertGT(statistics.size(), 0, "VM output should contain one "
+ "rtm locking statistics entry for method "
+ provoker.getMethodWithLockName());
RTMLockingStatistics lock = statistics.get(0);
Asserts.assertGT(lock.getTotalLocks(), 0L, "RTM locking statistics "
+ "should contain non zero total locks count");
Asserts.assertGT(lock.getTotalAborts(), 0L,
"RTM locking statistics should contain non zero total aborts "
+ "count");
Asserts.assertGT(lock.getAborts(abortType), 0L, String.format(
"RTM locking statistics should contain non zero aborts count "
+ "for abort reason %s", abortType));
}
public static void main(String args[]) throws Throwable {
new TestPrintPreciseRTMLockingStatistics().test();
}
}
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