Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/CompilationStatistics.java @ 21780:3d15183f3c93
Introduce Compiler interface in jvmci. Use it from jvmci.hotspot.CompilationTask
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Wed, 03 Jun 2015 15:47:54 +0200 |
parents | graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/CompilationStatistics.java@5324104ac4f3 |
children | 5b9adb645217 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/CompilationStatistics.java Wed Jun 03 15:47:54 2015 +0200 @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2012, 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. + */ +package com.oracle.jvmci.hotspot; + +import static java.lang.Thread.*; + +import java.io.*; +import java.lang.annotation.*; +import java.lang.management.*; +import java.lang.reflect.*; +import java.util.*; +import java.util.concurrent.*; + +import com.sun.management.ThreadMXBean; + +@SuppressWarnings("unused") +public final class CompilationStatistics { + + private static final long RESOLUTION = 100000000; + private static final boolean ENABLED = Boolean.getBoolean("graal.comp.stats"); + + private static final CompilationStatistics DUMMY = new CompilationStatistics(null, false); + + private static ConcurrentLinkedDeque<CompilationStatistics> list = new ConcurrentLinkedDeque<>(); + + private static final ThreadLocal<Deque<CompilationStatistics>> current = new ThreadLocal<Deque<CompilationStatistics>>() { + + @Override + protected Deque<CompilationStatistics> initialValue() { + return new ArrayDeque<>(); + } + }; + + @Retention(RetentionPolicy.RUNTIME) + @Target(ElementType.FIELD) + private static @interface NotReported { + } + + @Retention(RetentionPolicy.RUNTIME) + @Target(ElementType.FIELD) + private static @interface TimeValue { + } + + private static long zeroTime = System.nanoTime(); + + private static long getThreadAllocatedBytes() { + ThreadMXBean thread = (ThreadMXBean) ManagementFactory.getThreadMXBean(); + return thread.getThreadAllocatedBytes(currentThread().getId()); + } + + @NotReported private final long startTime; + @NotReported private long threadAllocatedBytesStart; + + private int bytecodeCount; + private int codeSize; + @TimeValue private long duration; + private long memoryUsed; + private final boolean osr; + private final String holder; + private final String name; + private final String signature; + + private CompilationStatistics(HotSpotResolvedJavaMethod method, boolean osr) { + this.osr = osr; + if (method != null) { + holder = method.getDeclaringClass().getName(); + name = method.getName(); + signature = method.getSignature().toMethodDescriptor(); + startTime = System.nanoTime(); + bytecodeCount = method.getCodeSize(); + threadAllocatedBytesStart = getThreadAllocatedBytes(); + } else { + holder = ""; + name = ""; + signature = ""; + startTime = 0; + } + } + + public void finish(HotSpotResolvedJavaMethod method, HotSpotInstalledCode code) { + if (ENABLED) { + duration = System.nanoTime() - startTime; + codeSize = (int) code.getCodeSize(); + memoryUsed = getThreadAllocatedBytes() - threadAllocatedBytesStart; + if (current.get().getLast() != this) { + throw new RuntimeException("mismatch in finish()"); + } + current.get().removeLast(); + } + } + + public static CompilationStatistics current() { + return current.get().isEmpty() ? null : current.get().getLast(); + } + + public static CompilationStatistics create(HotSpotResolvedJavaMethod method, boolean isOSR) { + if (ENABLED) { + CompilationStatistics stats = new CompilationStatistics(method, isOSR); + list.add(stats); + current.get().addLast(stats); + return stats; + } else { + return DUMMY; + } + } + + @SuppressWarnings("deprecation") + public static void clear(String dumpName) { + if (!ENABLED) { + return; + } + try { + ConcurrentLinkedDeque<CompilationStatistics> snapshot = list; + long snapshotZeroTime = zeroTime; + + list = new ConcurrentLinkedDeque<>(); + zeroTime = System.nanoTime(); + + Date now = new Date(); + String dateString = (now.getYear() + 1900) + "-" + (now.getMonth() + 1) + "-" + now.getDate() + "-" + now.getHours() + "" + now.getMinutes(); + + dumpCompilations(snapshot, dumpName, dateString); + + try (FileOutputStream fos = new FileOutputStream("timeline_" + dateString + "_" + dumpName + ".csv", true); PrintStream out = new PrintStream(fos)) { + + long[] timeSpent = new long[10000]; + int maxTick = 0; + for (CompilationStatistics stats : snapshot) { + long start = stats.startTime - snapshotZeroTime; + long duration = stats.duration; + if (start < 0) { + duration -= -start; + start = 0; + } + + int tick = (int) (start / RESOLUTION); + long timeLeft = RESOLUTION - (start % RESOLUTION); + + while (tick < timeSpent.length && duration > 0) { + if (tick > maxTick) { + maxTick = tick; + } + timeSpent[tick] += Math.min(timeLeft, duration); + duration -= timeLeft; + tick++; + timeLeft = RESOLUTION; + } + } + String timelineName = System.getProperty("stats.timeline.name"); + if (timelineName != null && !timelineName.isEmpty()) { + out.print(timelineName + "\t"); + } + for (int i = 0; i <= maxTick; i++) { + out.print((timeSpent[i] * 100 / RESOLUTION) + "\t"); + } + out.println(); + } + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + protected static void dumpCompilations(ConcurrentLinkedDeque<CompilationStatistics> snapshot, String dumpName, String dateString) throws IllegalAccessException, FileNotFoundException { + String fileName = "compilations_" + dateString + "_" + dumpName + ".csv"; + try (PrintStream out = new PrintStream(fileName)) { + // output the list of all compilations + + Field[] declaredFields = CompilationStatistics.class.getDeclaredFields(); + ArrayList<Field> fields = new ArrayList<>(); + for (Field field : declaredFields) { + if (!Modifier.isStatic(field.getModifiers()) && !field.isAnnotationPresent(NotReported.class)) { + fields.add(field); + } + } + for (Field field : fields) { + out.print(field.getName() + "\t"); + } + out.println(); + for (CompilationStatistics stats : snapshot) { + for (Field field : fields) { + if (field.isAnnotationPresent(TimeValue.class)) { + double value = field.getLong(stats) / 1000000d; + out.print(String.format(Locale.ENGLISH, "%.3f", value) + "\t"); + } else { + out.print(field.get(stats) + "\t"); + } + } + out.println(); + } + } + } +}