You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
4.7 KiB
116 lines
4.7 KiB
/* |
|
* 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 UseRTMLockEliding option could be applied to |
|
* specified method and that such method will not be deoptimized |
|
* on high abort ratio. |
|
* @library /testlibrary /testlibrary/whitebox /compiler/testlibrary |
|
* @build TestUseRTMLockElidingOption |
|
* @run main ClassFileInstaller sun.hotspot.WhiteBox |
|
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
|
* -XX:+WhiteBoxAPI TestUseRTMLockElidingOption |
|
*/ |
|
|
|
import java.util.List; |
|
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 method tagged with option <i>UseRTMLockElidingOption</i> |
|
* will use RTM-based lock elision, but will be never deoptimized with |
|
* <i>rtm_state_change reason</i>. |
|
* Test invokes compiled method and checks that no deoptimization with |
|
* <i>rtm_state_change</i> reason had happened and that that VM output |
|
* contains RTM locking statistics for compiled method and that total locks |
|
* count equals to method's invocations. |
|
* Since last assert is pretty strict, test uses -XX:RTMRetryCount=0 in order |
|
* to avoid issue with retriable aborts described in |
|
* {@link TestUseRTMAfterLockInflation}. |
|
*/ |
|
public class TestUseRTMLockElidingOption extends CommandLineOptionTest { |
|
private TestUseRTMLockElidingOption() { |
|
super(new AndPredicate(new SupportedCPU(), new SupportedVM())); |
|
} |
|
|
|
@Override |
|
public void runTestCases() throws Throwable { |
|
verifyOption(false); |
|
verifyOption(true); |
|
} |
|
|
|
public void verifyOption(boolean useStackLock) throws Throwable { |
|
AbortProvoker provoker = AbortType.XABORT.provoker(); |
|
String logFileName = String.format("rtm_deopt_%s_stack_lock.xml", |
|
(useStackLock ? "use" : "no")); |
|
String methodOption = String.format("-XX:CompileCommand=option," + |
|
"%s,UseRTMLockEliding", provoker.getMethodWithLockName()); |
|
|
|
OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest( |
|
logFileName, |
|
provoker, |
|
CommandLineOptionTest.prepareBooleanFlag("UseRTMForStackLocks", |
|
useStackLock), |
|
methodOption, |
|
"-XX:RTMTotalCountIncrRate=1", |
|
"-XX:RTMRetryCount=0", |
|
"-XX:+UseRTMDeopt", |
|
"-XX:+PrintPreciseRTMLockingStatistics", |
|
provoker.getClass().getName(), |
|
AbortType.XABORT.toString(), |
|
Boolean.toString(!useStackLock) |
|
); |
|
|
|
outputAnalyzer.shouldHaveExitValue(0); |
|
|
|
int firedTraps = RTMTestBase.firedRTMStateChangeTraps(logFileName); |
|
|
|
Asserts.assertEQ(firedTraps, 0, |
|
"Method deoptimization with rtm_state_change is unexpected"); |
|
|
|
List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString( |
|
provoker.getMethodWithLockName(), outputAnalyzer.getOutput()); |
|
|
|
Asserts.assertEQ(statistics.size(), 1, |
|
"VM output should contain exactly one RTM locking " |
|
+ "statistics entry for method " |
|
+ provoker.getMethodWithLockName()); |
|
|
|
RTMLockingStatistics lock = statistics.get(0); |
|
|
|
Asserts.assertEQ(lock.getTotalLocks(), AbortProvoker.DEFAULT_ITERATIONS, |
|
"Expected to get total locks count equal to total amount of " |
|
+ "lock attempts."); |
|
} |
|
|
|
public static void main(String args[]) throws Throwable { |
|
new TestUseRTMLockElidingOption().test(); |
|
} |
|
}
|
|
|