1 /* 2 * Copyright (c) 2012, 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 package org.graalvm.compiler.hotspot; 24 25 import static java.lang.Thread.currentThread; 26 27 import java.io.FileNotFoundException; 28 import java.io.FileOutputStream; 29 import java.io.PrintStream; 30 import java.lang.annotation.ElementType; 31 import java.lang.annotation.Retention; 32 import java.lang.annotation.RetentionPolicy; 33 import java.lang.annotation.Target; 34 import java.lang.reflect.Field; 35 import java.lang.reflect.Modifier; 36 import java.util.ArrayDeque; 37 import java.util.ArrayList; 38 import java.util.Arrays; 39 import java.util.Date; 40 import java.util.Deque; 41 import java.util.Locale; 42 import java.util.concurrent.ConcurrentLinkedDeque; 43 44 import org.graalvm.compiler.debug.CSVUtil; 45 import org.graalvm.compiler.debug.Management; 46 import org.graalvm.compiler.options.Option; 47 import org.graalvm.compiler.options.OptionValue; 48 import com.sun.management.ThreadMXBean; 49 50 import jdk.vm.ci.hotspot.HotSpotInstalledCode; 51 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 52 53 @SuppressWarnings("unused") 54 public final class CompilationStatistics { 55 56 public static class Options { 57 // @formatter:off 58 @Option(help = "Enables CompilationStatistics.") 59 public static final OptionValue<Boolean> UseCompilationStatistics = new OptionValue<>(false); 60 // @formatter:on 61 } 62 63 private static final long RESOLUTION = 100000000; 64 private static final boolean ENABLED = Options.UseCompilationStatistics.getValue(); 65 66 private static final CompilationStatistics DUMMY = new CompilationStatistics(null, false); 67 68 private static ConcurrentLinkedDeque<CompilationStatistics> list = new ConcurrentLinkedDeque<>(); 69 70 private static final ThreadLocal<Deque<CompilationStatistics>> current = new ThreadLocal<Deque<CompilationStatistics>>() { 71 72 @Override 73 protected Deque<CompilationStatistics> initialValue() { 74 return new ArrayDeque<>(); 75 } 76 }; 77 78 @Retention(RetentionPolicy.RUNTIME) 79 @Target(ElementType.FIELD) 80 private static @interface NotReported { 81 } 82 83 @Retention(RetentionPolicy.RUNTIME) 84 @Target(ElementType.FIELD) 85 private static @interface TimeValue { 86 } 87 88 private static long zeroTime = System.nanoTime(); 89 90 private static long getThreadAllocatedBytes() { 91 ThreadMXBean thread = (ThreadMXBean) Management.getThreadMXBean(); 92 return thread.getThreadAllocatedBytes(currentThread().getId()); 93 } 94 95 @NotReported private final long startTime; 96 @NotReported private long threadAllocatedBytesStart; 97 98 private int bytecodeCount; 99 private int codeSize; 100 @TimeValue private long duration; 101 private long memoryUsed; 102 private final boolean osr; 103 private final String holder; 104 private final String name; 105 private final String signature; 106 107 private CompilationStatistics(HotSpotResolvedJavaMethod method, boolean osr) { 108 this.osr = osr; 109 if (method != null) { 110 holder = method.getDeclaringClass().getName(); 111 name = method.getName(); 112 signature = method.getSignature().toMethodDescriptor(); 113 startTime = System.nanoTime(); 114 bytecodeCount = method.getCodeSize(); 115 threadAllocatedBytesStart = getThreadAllocatedBytes(); 116 } else { 117 holder = ""; 118 name = ""; 119 signature = ""; 120 startTime = 0; 121 } 122 } 123 124 public void finish(HotSpotResolvedJavaMethod method, HotSpotInstalledCode code) { 125 if (ENABLED) { 126 duration = System.nanoTime() - startTime; 127 codeSize = (int) code.getCodeSize(); 128 memoryUsed = getThreadAllocatedBytes() - threadAllocatedBytesStart; 129 if (current.get().getLast() != this) { 130 throw new RuntimeException("mismatch in finish()"); 131 } 132 current.get().removeLast(); 133 } 134 } 135 136 public static CompilationStatistics current() { 137 return current.get().isEmpty() ? null : current.get().getLast(); 138 } 139 140 public static CompilationStatistics create(HotSpotResolvedJavaMethod method, boolean isOSR) { 141 if (ENABLED) { 142 CompilationStatistics stats = new CompilationStatistics(method, isOSR); 143 list.add(stats); 144 current.get().addLast(stats); 145 return stats; 146 } else { 147 return DUMMY; 148 } 149 } 150 151 @SuppressWarnings("deprecation") 152 public static void clear(String dumpName) { 153 if (!ENABLED) { 154 return; 155 } 156 try { 157 ConcurrentLinkedDeque<CompilationStatistics> snapshot = list; 158 long snapshotZeroTime = zeroTime; 159 160 list = new ConcurrentLinkedDeque<>(); 161 zeroTime = System.nanoTime(); 162 163 Date now = new Date(); 164 String dateString = (now.getYear() + 1900) + "-" + (now.getMonth() + 1) + "-" + now.getDate() + "-" + now.getHours() + "" + now.getMinutes(); 165 166 dumpCompilations(snapshot, dumpName, dateString); 167 168 try (FileOutputStream fos = new FileOutputStream("timeline_" + dateString + "_" + dumpName + ".csv", true); PrintStream out = new PrintStream(fos)) { 169 170 long[] timeSpent = new long[10000]; 171 int maxTick = 0; 172 for (CompilationStatistics stats : snapshot) { 173 long start = stats.startTime - snapshotZeroTime; 174 long duration = stats.duration; 175 if (start < 0) { 176 duration -= -start; 177 start = 0; 178 } 179 180 int tick = (int) (start / RESOLUTION); 181 long timeLeft = RESOLUTION - (start % RESOLUTION); 182 183 while (tick < timeSpent.length && duration > 0) { 184 if (tick > maxTick) { 185 maxTick = tick; 186 } 187 timeSpent[tick] += Math.min(timeLeft, duration); 188 duration -= timeLeft; 189 tick++; 190 timeLeft = RESOLUTION; 191 } 192 } 193 String timelineName = System.getProperty("stats.timeline.name"); 194 if (timelineName != null && !timelineName.isEmpty()) { 195 out.printf("%s%c", CSVUtil.Escape.escape(timelineName), CSVUtil.SEPARATOR); 196 } 197 for (int i = 0; i < maxTick; i++) { 198 out.printf("%d%c", normalize(timeSpent[i]), CSVUtil.SEPARATOR); 199 } 200 // print last column 201 out.printf("%d", normalize(timeSpent[maxTick])); 202 out.println(); 203 } 204 } catch (Exception e) { 205 throw new RuntimeException(e); 206 } 207 } 208 209 private static long normalize(long time) { 210 return time * 100 / RESOLUTION; 211 } 212 213 protected static void dumpCompilations(ConcurrentLinkedDeque<CompilationStatistics> snapshot, String dumpName, String dateString) throws IllegalAccessException, FileNotFoundException { 214 String fileName = "compilations_" + dateString + "_" + dumpName + ".csv"; 215 char separator = '\t'; 216 try (PrintStream out = new PrintStream(fileName)) { 217 // output the list of all compilations 218 219 Field[] declaredFields = CompilationStatistics.class.getDeclaredFields(); 220 ArrayList<Field> fields = new ArrayList<>(); 221 for (Field field : declaredFields) { 222 if (!Modifier.isStatic(field.getModifiers()) && !field.isAnnotationPresent(NotReported.class)) { 223 fields.add(field); 224 } 225 } 226 String format = CSVUtil.buildFormatString("%s", separator, fields.size()); 227 CSVUtil.Escape.println(out, separator, CSVUtil.QUOTE, CSVUtil.ESCAPE, format, fields.toArray()); 228 for (CompilationStatistics stats : snapshot) { 229 Object[] values = new Object[fields.size()]; 230 for (int i = 0; i < fields.size(); i++) { 231 Field field = fields.get(i); 232 if (field.isAnnotationPresent(TimeValue.class)) { 233 double value = field.getLong(stats) / 1000000d; 234 values[i] = String.format(Locale.ENGLISH, "%.3f", value); 235 } else { 236 values[i] = field.get(stats); 237 } 238 } 239 CSVUtil.Escape.println(out, separator, CSVUtil.QUOTE, CSVUtil.ESCAPE, format, values); 240 } 241 } 242 } 243 }