JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2010, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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.
 */

option classload {
  column {
    header "^Loaded^"	/* Number of classes loaded */
    data (java.cls.loadedClasses + java.cls.sharedLoadedClasses)
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Time^"	/* Accumulated time for class loading */
    data sun.cls.time/sun.os.hrt.frequency
    scale sec
    align right
    width 10
    format "0.000"
  }
  column {
    header "^Inited^"	/* Number of initialized classes */
    data sun.cls.initializedClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Time^"	/* Accumulated time for class initialization */
    data sun.cls.classInitTime.self/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "Shared^"	/* Number of system classes loaded from shared archive */
    data java.cls.sharedLoadedClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Kbytes^"	/* Accumulated Size of classes loaded */
    data sun.cls.sharedLoadedBytes
    align right
    scale K
    width 7
    format "0.0"
  }
  column {
    header "LoadTime^"	/* Accumulated time for loading classes from shared archive */
    data sun.cls.sharedClassLoadTime/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "^SysClass^"	/* Number of system classes loaded */
    data java.cls.loadedClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Kbytes^"	/* Bytes read from system class files */
    data sun.cls.sysClassBytes
    align right
    scale K
    width 7
    format "0.0"
  }
  column {
    header "LoadTime^"	/* Accumulated time for loading non-shared system classes */
    data sun.cls.sysClassLoadTime/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "Lookup^"	/* Time spent in looking up/reading of system classes */
    data sun.cls.lookupSysClassTime/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "Parse^"	/* Time spent in parsing system classes */
    data sun.cls.parseClassTime.self/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "^Linked^"	/* Number of linked classes */
    data sun.cls.linkedClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Time^"	/* Accumulated time for class linking */
    data sun.cls.classInitTime.self/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "^Verified^"	/* Number of verified classes */
    data sun.cls.verifiedClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Time^"	/* Accumulated time for class verification */
    data sun.cls.classVerifyTime.self/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "AppClass^"	/* Number of loaded application classes */
    data sun.cls.appClassLoadCount
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Kbytes^"	/* Bytes read from app class files */
    data sun.cls.appClassBytes
    align right
    scale K
    width 7
    format "0.0"
  }
  column {
    header "AppCL^"	/* Accumulated time for loading app classes */
    data sun.cls.appClassLoadTime/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "^DefineClass^"	/* Number of defineClass calls */
    data sun.cls.defineAppClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {
    header "Time^"	/* Accumulated time for defineClass */
    data sun.cls.defineAppClassTime.self/sun.os.hrt.frequency
    scale raw
    align right
    width 10
    format "0.000"
  }
  column {
    header "^FindClass^"	/* Number of findClass calls */
    data sun.classloader.findClasses
    align right
    scale raw
    width 5
    format "0"
  }
  column {

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