Mercurial > hg > graal-jvmci-8
annotate jvmci/jdk.vm.ci.inittimer/src/jdk/vm/ci/inittimer/InitTimer.java @ 22672:1bbd4a7c274b
Rename jdk.internal.jvmci to jdk.vm.ci
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 08 Oct 2015 17:28:41 -0700 |
parents | jvmci/jdk.internal.jvmci.inittimer/src/jdk/internal/jvmci/inittimer/InitTimer.java@4f6caa445b92 |
children | 9ed36a1fec52 |
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1 /* |
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use skeleton findbugs jar containing only SuppresFBWarnings to avoid external dependency for JVMCI classes (JBS:GRAAL-53)
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2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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decoupled Graal runtime initialization and Graal compilation queue initialization
Doug Simon <doug.simon@oracle.com>
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
66a9286203a2
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
66a9286203a2
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
66a9286203a2
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
66a9286203a2
decoupled Graal runtime initialization and Graal compilation queue initialization
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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Rename jdk.internal.jvmci to jdk.vm.ci
Tom Rodriguez <tom.rodriguez@oracle.com>
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23 package jdk.vm.ci.inittimer; |
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24 |
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25 /** |
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moved JVMCI option parsing back into Java
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26 * A facility for timing a step in the runtime initialization sequence. This is independent from all |
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27 * other JVMCI code so as to not perturb the initialization sequence. It is enabled by setting the |
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28 * {@code "jvmci.inittimer"} system property to {@code "true"}. |
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29 */ |
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re-enabled Checkstyle with the release of 6.0 that supports Java 8; fixed existing Checkstyle warnings
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30 public final class InitTimer implements AutoCloseable { |
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31 final String name; |
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32 final long start; |
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33 |
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34 private InitTimer(String name) { |
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35 this.name = name; |
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36 this.start = System.currentTimeMillis(); |
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37 System.out.println("START: " + SPACES.substring(0, timerDepth * 2) + name); |
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38 assert Thread.currentThread() == initializingThread : Thread.currentThread() + " != " + initializingThread; |
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39 timerDepth++; |
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40 } |
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41 |
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42 @SuppressFBWarnings(value = "ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD", justification = "only the initializing thread accesses this field") |
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43 public void close() { |
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44 final long end = System.currentTimeMillis(); |
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45 timerDepth--; |
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46 System.out.println(" DONE: " + SPACES.substring(0, timerDepth * 2) + name + " [" + (end - start) + " ms]"); |
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47 } |
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48 |
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49 public static InitTimer timer(String name) { |
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50 return ENABLED ? new InitTimer(name) : null; |
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51 } |
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52 |
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53 public static InitTimer timer(String name, Object suffix) { |
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54 return ENABLED ? new InitTimer(name + suffix) : null; |
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55 } |
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56 |
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57 /** |
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58 * Specifies if initialization timing is enabled. |
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59 */ |
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60 private static final boolean ENABLED = Boolean.getBoolean("jvmci.inittimer") || Boolean.getBoolean("jvmci.runtime.TimeInit"); |
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61 |
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62 public static int timerDepth = 0; |
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63 public static final String SPACES = " "; |
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64 |
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65 /** |
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66 * Used to assert the invariant that all initialization happens on the same thread. |
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67 */ |
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68 public static final Thread initializingThread; |
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69 static { |
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70 if (ENABLED) { |
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71 initializingThread = Thread.currentThread(); |
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72 System.out.println("INITIALIZING THREAD: " + initializingThread); |
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73 } else { |
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74 initializingThread = null; |
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75 } |
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76 } |
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77 } |