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

test/compiler/rtm/locking/TestRTMSpinLoopCount.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

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 RTMSpinLoopCount affects time spent
aoqi@0	29	* between locking attempts.
aoqi@0	30	* @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
aoqi@0	31	* @build TestRTMSpinLoopCount
aoqi@0	32	* @run main ClassFileInstaller sun.hotspot.WhiteBox
aoqi@0	33	* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
aoqi@0	34	* -XX:+WhiteBoxAPI TestRTMSpinLoopCount
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
aoqi@0	45	/**
aoqi@0	46	* Test verifies that RTMSpinLoopCount increase time spent between retries
aoqi@0	47	* by comparing amount of retries done with different RTMSpinLoopCount's values.
aoqi@0	48	*/
aoqi@0	49	public class TestRTMSpinLoopCount extends CommandLineOptionTest {
aoqi@0	50	private static final int LOCKING_TIME = 1000;
aoqi@0	51	private static final int RTM_RETRY_COUNT = 1000;
aoqi@0	52	private static final boolean INFLATE_MONITOR = true;
aoqi@0	53	private static final long MAX_ABORTS = RTM_RETRY_COUNT + 1L;
aoqi@0	54	private static final int[] SPIN_LOOP_COUNTS
aoqi@0	55	= new int[] { 0, 100, 1_000, 1_000_000, 10_000_000 };
aoqi@0	56
aoqi@0	57	private TestRTMSpinLoopCount() {
aoqi@0	58	super(new AndPredicate(new SupportedVM(), new SupportedCPU()));
aoqi@0	59	}
aoqi@0	60
aoqi@0	61	@Override
aoqi@0	62	protected void runTestCases() throws Throwable {
aoqi@0	63	long[] aborts = new long[TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length];
aoqi@0	64	for (int i = 0; i < TestRTMSpinLoopCount.SPIN_LOOP_COUNTS.length; i++) {
aoqi@0	65	aborts[i] = getAbortsCountOnLockBusy(
aoqi@0	66	TestRTMSpinLoopCount.SPIN_LOOP_COUNTS[i]);
aoqi@0	67	}
aoqi@0	68
aoqi@0	69	for (int i = 1; i < aborts.length; i++) {
aoqi@0	70	Asserts.assertLTE(aborts[i], aborts[i - 1], "Increased spin loop "
aoqi@0	71	+ "count should not increase retries count.");
aoqi@0	72	}
aoqi@0	73	}
aoqi@0	74
aoqi@0	75	private long getAbortsCountOnLockBusy(int spinLoopCount) throws Throwable {
aoqi@0	76	CompilableTest test = new BusyLock();
aoqi@0	77
aoqi@0	78	OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
aoqi@0	79	test,
aoqi@0	80	CommandLineOptionTest.prepareNumericFlag("RTMRetryCount",
aoqi@0	81	TestRTMSpinLoopCount.RTM_RETRY_COUNT),
aoqi@0	82	CommandLineOptionTest.prepareNumericFlag("RTMSpinLoopCount",
aoqi@0	83	spinLoopCount),
aoqi@0	84	"-XX:-UseRTMXendForLockBusy",
aoqi@0	85	"-XX:RTMTotalCountIncrRate=1",
aoqi@0	86	"-XX:+PrintPreciseRTMLockingStatistics",
aoqi@0	87	BusyLock.class.getName(),
aoqi@0	88	Boolean.toString(TestRTMSpinLoopCount.INFLATE_MONITOR),
aoqi@0	89	Integer.toString(TestRTMSpinLoopCount.LOCKING_TIME)
aoqi@0	90	);
aoqi@0	91
aoqi@0	92	outputAnalyzer.shouldHaveExitValue(0);
aoqi@0	93
aoqi@0	94	List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
aoqi@0	95	test.getMethodWithLockName(), outputAnalyzer.getOutput());
aoqi@0	96
aoqi@0	97	Asserts.assertEQ(statistics.size(), 1,
aoqi@0	98	"VM output should contain exactly one entry for method "
aoqi@0	99	+ test.getMethodWithLockName());
aoqi@0	100
aoqi@0	101	RTMLockingStatistics lock = statistics.get(0);
aoqi@0	102
aoqi@0	103	Asserts.assertLTE(lock.getTotalAborts(),
aoqi@0	104	TestRTMSpinLoopCount.MAX_ABORTS, String.format("Total aborts "
aoqi@0	105	+ "count (%d) should be less or equal to %d",
aoqi@0	106	lock.getTotalAborts(),
aoqi@0	107	TestRTMSpinLoopCount.MAX_ABORTS));
aoqi@0	108
aoqi@0	109	return lock.getTotalAborts();
aoqi@0	110	}
aoqi@0	111
aoqi@0	112	public static void main(String args[]) throws Throwable {
aoqi@0	113	new TestRTMSpinLoopCount().test();
aoqi@0	114	}
aoqi@0	115	}