author | lkorinth |
Fri, 08 Feb 2019 12:09:41 +0100 | |
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parent 53693 | af078dd4a224 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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package gc.nvdimm; |
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/* |
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* @test TestOldObjectsOnNvdimm |
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* @summary Check that objects in old generation reside in dram. |
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* @requires vm.gc=="null" & os.family != "aix" |
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* @requires test.vm.gc.nvdimm |
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* @library /test/lib |
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* @build sun.hotspot.WhiteBox |
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox |
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* @run main gc.nvdimm.TestOldObjectsOnNvdimm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions |
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* -XX:+WhiteBoxAPI |
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*/ |
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import jdk.test.lib.process.OutputAnalyzer; |
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import jdk.test.lib.process.ProcessTools; |
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import jdk.test.lib.Asserts; |
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import sun.hotspot.WhiteBox; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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/* |
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* Test spawns OldObjectTest in a separate VM and expects that it |
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* completes without a RuntimeException. |
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*/ |
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public class TestOldObjectsOnNvdimm { |
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public static final int ALLOCATION_SIZE = 100; |
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private static ArrayList<String> testOpts; |
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|
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public static void main(String args[]) throws Exception { |
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testOpts = new ArrayList<>(); |
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String[] common_options = new String[] { |
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"-Xbootclasspath/a:.", |
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"-XX:+UnlockExperimentalVMOptions", |
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"-XX:+UnlockDiagnosticVMOptions", |
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"-XX:+WhiteBoxAPI", |
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"-XX:AllocateOldGenAt="+System.getProperty("test.dir", "."), |
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"-Xms10M", "-Xmx10M", |
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"-XX:MaxTenuringThreshold=1" // Promote objects to Old Gen |
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}; |
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String testVmOptsStr = System.getProperty("test.java.opts"); |
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if (!testVmOptsStr.isEmpty()) { |
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String[] testVmOpts = testVmOptsStr.split(" "); |
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Collections.addAll(testOpts, testVmOpts); |
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} |
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Collections.addAll(testOpts, common_options); |
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// Test with G1 GC |
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runTest("-XX:+UseG1GC"); |
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// Test with ParallelOld GC |
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runTest("-XX:+UseParallelOldGC -XX:-UseAdaptiveGCBoundary"); |
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runTest("-XX:+UseParallelOldGC -XX:+UseAdaptiveGCBoundary"); |
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} |
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private static void runTest(String... extraFlags) throws Exception { |
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Collections.addAll(testOpts, extraFlags); |
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testOpts.add(OldObjectTest.class.getName()); |
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System.out.println(testOpts); |
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(false, |
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testOpts.toArray(new String[testOpts.size()])); |
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OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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System.out.println(output.getStdout()); |
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output.shouldHaveExitValue(0); |
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} |
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} |
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/* |
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* This class tests that object is in Old generation after tenuring and resides in NVDIMM. |
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* The necessary condition for this test is running in VM with the following flags: |
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* -XX:AllocateOldGenAt=, -XX:MaxTenuringThreshold=1 |
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*/ |
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class OldObjectTest { |
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private static final WhiteBox WB = WhiteBox.getWhiteBox(); |
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private static void validateOldObject(Object o) { |
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Asserts.assertTrue(WB.isObjectInOldGen(o), |
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"Object is supposed to be in OldGen"); |
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long oldObj_addr = WB.getObjectAddress(o); |
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long nvdimm_heap_start = WB.nvdimmReservedStart(); |
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long nvdimm_heap_end = WB.nvdimmReservedEnd(); |
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Asserts.assertTrue(oldObj_addr >= nvdimm_heap_start && oldObj_addr <= nvdimm_heap_end, |
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"Old object does not reside in NVDIMM"); |
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} |
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public static void main(String args[]) throws Exception { |
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// allocate an object and perform Young GCs to promote it to Old |
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byte[] oldObj = new byte[TestOldObjectsOnNvdimm.ALLOCATION_SIZE]; |
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WB.youngGC(); |
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WB.youngGC(); |
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validateOldObject(oldObj); |
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} |
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} |