GetUsageTest.java revision 11833:1cbffa2beba6
1193323Sed/* 2193323Sed * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3193323Sed * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4193323Sed * 5193323Sed * This code is free software; you can redistribute it and/or modify it 6193323Sed * under the terms of the GNU General Public License version 2 only, as 7193323Sed * published by the Free Software Foundation. 8193323Sed * 9193323Sed * This code is distributed in the hope that it will be useful, but WITHOUT 10193323Sed * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11193323Sed * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12193323Sed * version 2 for more details (a copy is included in the LICENSE file that 13193323Sed * accompanied this code). 14193323Sed * 15193323Sed * You should have received a copy of the GNU General Public License version 16249423Sdim * 2 along with this work; if not, write to the Free Software Foundation, 17249423Sdim * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18249423Sdim * 19193323Sed * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20201360Srdivacky * or visit www.oracle.com if you need additional information or have any 21198090Srdivacky * questions. 22198090Srdivacky */ 23193323Sed 24193323Sed/* 25193323Sed * @test GetUsageTest 26193323Sed * @summary testing of getUsage() for segmented code cache 27193323Sed * @modules java.base/jdk.internal.misc 28193323Sed * java.management 29193323Sed * @library /test/lib / 30193323Sed * 31193323Sed * @build sun.hotspot.WhiteBox 32193323Sed * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33249423Sdim * sun.hotspot.WhiteBox$WhiteBoxPermission 34193323Sed * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35193323Sed * -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::* 36193323Sed * -XX:-UseCodeCacheFlushing -XX:-MethodFlushing 37198892Srdivacky * -XX:+SegmentedCodeCache 38193323Sed * compiler.codecache.jmx.GetUsageTest 39193323Sed * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 40193323Sed * -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::* 41193323Sed * -XX:-UseCodeCacheFlushing -XX:-MethodFlushing 42193323Sed * -XX:-SegmentedCodeCache 43193323Sed * compiler.codecache.jmx.GetUsageTest 44193323Sed */ 45193323Sed 46249423Sdimpackage compiler.codecache.jmx; 47193323Sed 48193323Sedimport jdk.test.lib.Asserts; 49198090Srdivackyimport sun.hotspot.code.BlobType; 50198090Srdivacky 51193323Sedimport java.lang.management.MemoryPoolMXBean; 52193323Sedimport java.util.HashMap; 53193323Sedimport java.util.Map; 54218893Sdim 55218893Sdimpublic class GetUsageTest { 56218893Sdim 57193323Sed private final BlobType btype; 58193323Sed private final int allocateSize; 59193323Sed 60193323Sed public GetUsageTest(BlobType btype, int allocSize) { 61193323Sed this.btype = btype; 62193323Sed this.allocateSize = allocSize; 63198090Srdivacky } 64193323Sed 65193323Sed public static void main(String[] args) throws Exception { 66193323Sed for (BlobType btype : BlobType.getAvailable()) { 67193323Sed for (int allocSize = 10; allocSize < 100000; allocSize *= 10) { 68193323Sed new GetUsageTest(btype, allocSize).runTest(); 69212904Sdim } 70218893Sdim } 71193323Sed } 72193323Sed 73193323Sed protected final Map<MemoryPoolMXBean, Long> getBeanUsages() { 74193323Sed Map<MemoryPoolMXBean, Long> beanUsages = new HashMap<>(); 75193323Sed for (BlobType bt : BlobType.getAvailable()) { 76193323Sed beanUsages.put(bt.getMemoryPool(), 77193323Sed bt.getMemoryPool().getUsage().getUsed()); 78193323Sed } 79193323Sed return beanUsages; 80198892Srdivacky } 81193323Sed 82193323Sed protected void runTest() { 83193323Sed MemoryPoolMXBean[] predictableBeans = BlobType.getAvailable().stream() 84198892Srdivacky .filter(CodeCacheUtils::isCodeHeapPredictable) 85193323Sed .map(BlobType::getMemoryPool) 86193323Sed .toArray(MemoryPoolMXBean[]::new); 87193323Sed Map<MemoryPoolMXBean, Long> initial = getBeanUsages(); 88 long addr = 0; 89 try { 90 addr = CodeCacheUtils.WB.allocateCodeBlob(allocateSize, btype.id); 91 Map<MemoryPoolMXBean, Long> current = getBeanUsages(); 92 long blockCount = Math.floorDiv(allocateSize 93 + CodeCacheUtils.getHeaderSize(btype) 94 + CodeCacheUtils.SEGMENT_SIZE - 1, CodeCacheUtils.SEGMENT_SIZE); 95 long usageUpperEstimate = Math.max(blockCount, 96 CodeCacheUtils.MIN_BLOCK_LENGTH) * CodeCacheUtils.SEGMENT_SIZE; 97 for (MemoryPoolMXBean entry : predictableBeans) { 98 long diff = current.get(entry) - initial.get(entry); 99 if (entry.equals(btype.getMemoryPool())) { 100 if (CodeCacheUtils.isCodeHeapPredictable(btype)) { 101 Asserts.assertFalse(diff <= 0L || diff > usageUpperEstimate, 102 String.format("Pool %s usage increase was reported " 103 + "unexpectedly as increased by %d using " 104 + "allocation size %d", entry.getName(), 105 diff, allocateSize)); 106 } 107 } else { 108 CodeCacheUtils.assertEQorGTE(btype, diff, 0L, 109 String.format("Pool %s usage changed unexpectedly while" 110 + " trying to increase: %s using allocation " 111 + "size %d", entry.getName(), 112 btype.getMemoryPool().getName(), allocateSize)); 113 } 114 } 115 } finally { 116 if (addr != 0) { 117 CodeCacheUtils.WB.freeCodeBlob(addr); 118 } 119 } 120 System.out.printf("INFO: Scenario finished successfully for %s%n", 121 btype.getMemoryPool().getName()); 122 } 123} 124