1 /* 2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import jdk.test.lib.Asserts; 25 import java.lang.management.MemoryPoolMXBean; 26 import sun.hotspot.code.BlobType; 27 28 /* 29 * @test PeakUsageTest 30 * @library /testlibrary /test/lib 31 * @ignore 8151345 32 * @modules java.base/jdk.internal.misc 33 * java.management 34 * @build PeakUsageTest 35 * @run main ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 38 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache 39 * -XX:CompileCommand=compileonly,null::* PeakUsageTest 40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 41 * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache 42 * -XX:CompileCommand=compileonly,null::* PeakUsageTest 43 * @summary testing of getPeakUsage() and resetPeakUsage for 44 * segmented code cache 45 */ 46 public class PeakUsageTest { 47 48 private final BlobType btype; 49 50 public PeakUsageTest(BlobType btype) { 51 this.btype = btype; 52 } 53 54 public static void main(String[] args) { 55 for (BlobType btype : BlobType.getAvailable()) { 56 new PeakUsageTest(btype).runTest(); 57 } 58 } 59 60 protected void runTest() { 61 MemoryPoolMXBean bean = btype.getMemoryPool(); 62 bean.resetPeakUsage(); 63 long addr = CodeCacheUtils.WB.allocateCodeBlob( 64 CodeCacheUtils.ALLOCATION_SIZE, btype.id); 65 long newPeakUsage = bean.getPeakUsage().getUsed(); 66 try { 67 CodeCacheUtils.assertEQorGTE(btype, newPeakUsage, bean.getUsage().getUsed(), 68 "Peak usage does not match usage after allocation for " 69 + bean.getName()); 70 } finally { 71 if (addr != 0) { 72 CodeCacheUtils.WB.freeCodeBlob(addr); 73 } 74 } 75 CodeCacheUtils.assertEQorGTE(btype, newPeakUsage, bean.getPeakUsage().getUsed(), 76 "Code cache peak usage has changed after usage decreased for " 77 + bean.getName()); 78 bean.resetPeakUsage(); 79 CodeCacheUtils.assertEQorGTE(btype, bean.getPeakUsage().getUsed(), 80 bean.getUsage().getUsed(), 81 "Code cache peak usage is not equal to usage after reset for " 82 + bean.getName()); 83 long addr2 = CodeCacheUtils.WB.allocateCodeBlob( 84 CodeCacheUtils.ALLOCATION_SIZE, btype.id); 85 try { 86 CodeCacheUtils.assertEQorGTE(btype, bean.getPeakUsage().getUsed(), 87 bean.getUsage().getUsed(), 88 "Code cache peak usage is not equal to usage after fresh " 89 + "allocation for " + bean.getName()); 90 } finally { 91 if (addr2 != 0) { 92 CodeCacheUtils.WB.freeCodeBlob(addr2); 93 } 94 } 95 System.out.printf("INFO: Scenario finished successfully for %s%n", 96 bean.getName()); 97 } 98 }