diff test/compiler/rtm/locking/TestRTMRetryCount.java @ 17873:ba8268c23fa2

8037860: Add tests to cover Intel RTM instructions support Reviewed-by: kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com
author iignatyev
date Fri, 11 Apr 2014 00:35:23 +0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/rtm/locking/TestRTMRetryCount.java	Fri Apr 11 00:35:23 2014 +0400
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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 RTMRetryCount affects actual amount of retries.
+ * @library /testlibrary /testlibrary/whitebox /compiler/testlibrary
+ * @build TestRTMRetryCount
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
+ *                   -XX:+WhiteBoxAPI TestRTMRetryCount
+ */
+
+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 RTMRetryCount option actually affects amount of
+ * retries on lock busy.
+ */
+public class TestRTMRetryCount extends CommandLineOptionTest {
+    /**
+     * Time in ms, during which busy lock will be locked.
+     */
+    private static final int LOCKING_TIME = 5000;
+    private static final boolean INFLATE_MONITOR = true;
+
+    private TestRTMRetryCount() {
+        super(new AndPredicate(new SupportedCPU(), new SupportedVM()));
+    }
+
+    @Override
+    protected void runTestCases() throws Throwable {
+        verifyRTMRetryCount(0);
+        verifyRTMRetryCount(1);
+        verifyRTMRetryCount(5);
+        verifyRTMRetryCount(10);
+    }
+
+    private void verifyRTMRetryCount(int retryCount) throws Throwable {
+        CompilableTest busyLock = new BusyLock();
+        long expectedAborts = retryCount + 1L;
+
+        OutputAnalyzer outputAnalyzer = RTMTestBase.executeRTMTest(
+                busyLock,
+                "-XX:-UseRTMXendForLockBusy",
+                "-XX:RTMTotalCountIncrRate=1",
+                CommandLineOptionTest.prepareNumericFlag("RTMRetryCount",
+                        retryCount),
+                "-XX:RTMTotalCountIncrRate=1",
+                "-XX:+PrintPreciseRTMLockingStatistics",
+                BusyLock.class.getName(),
+                Boolean.toString(TestRTMRetryCount.INFLATE_MONITOR),
+                Integer.toString(TestRTMRetryCount.LOCKING_TIME)
+        );
+
+        outputAnalyzer.shouldHaveExitValue(0);
+
+        List<RTMLockingStatistics> statistics = RTMLockingStatistics.fromString(
+                busyLock.getMethodWithLockName(), outputAnalyzer.getStdout());
+
+        Asserts.assertEQ(statistics.size(), 1, "VM output should contain "
+                + "exactly one rtm locking statistics entry for method "
+                + busyLock.getMethodWithLockName());
+
+        Asserts.assertEQ(statistics.get(0).getTotalAborts(), expectedAborts,
+                String.format("It is expected to get %d aborts",
+                        expectedAborts));
+    }
+
+    public static void main(String args[]) throws Throwable {
+        new TestRTMRetryCount().test();
+    }
+}