view src/share/vm/runtime/init.cpp @ 1145:e018e6884bd8

6631166: CMS: better heuristics when combatting fragmentation Summary: Autonomic per-worker free block cache sizing, tunable coalition policies, fixes to per-size block statistics, retuned gain and bandwidth of some feedback loop filters to allow quicker reactivity to abrupt changes in ambient demand, and other heuristics to reduce fragmentation of the CMS old gen. Also tightened some assertions, including those related to locking. Reviewed-by: jmasa
author ysr
date Wed, 23 Dec 2009 09:23:54 -0800
parents d95b224e9f17
children 9eba43136cb5
line wrap: on
line source

/*
 * Copyright 1997-2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

# include "incls/_precompiled.incl"
# include "incls/_init.cpp.incl"

// Initialization done by VM thread in vm_init_globals()
void check_ThreadShadow();
void eventlog_init();
void mutex_init();
void chunkpool_init();
void perfMemory_init();

// Initialization done by Java thread in init_globals()
void management_init();
void vtune_init();
void bytecodes_init();
void classLoader_init();
void codeCache_init();
void VM_Version_init();
void stubRoutines_init1();
jint universe_init();  // dependent on codeCache_init and stubRoutines_init
void interpreter_init();  // before any methods loaded
void invocationCounter_init();  // before any methods loaded
void marksweep_init();
void accessFlags_init();
void templateTable_init();
void InterfaceSupport_init();
void universe2_init();  // dependent on codeCache_init and stubRoutines_init
void referenceProcessor_init();
void jni_handles_init();
void vmStructs_init();

void vtableStubs_init();
void InlineCacheBuffer_init();
void compilerOracle_init();
void compilationPolicy_init();


// Initialization after compiler initialization
bool universe_post_init();  // must happen after compiler_init
void javaClasses_init();  // must happen after vtable initialization
void stubRoutines_init2(); // note: StubRoutines need 2-phase init

// Do not disable thread-local-storage, as it is important for some
// JNI/JVM/JVMTI functions and signal handlers to work properly
// during VM shutdown
void perfMemory_exit();
void ostream_exit();

void vm_init_globals() {
  check_ThreadShadow();
  basic_types_init();
  eventlog_init();
  mutex_init();
  chunkpool_init();
  perfMemory_init();
}


jint init_globals() {
  HandleMark hm;
  management_init();
  vtune_init();
  bytecodes_init();
  classLoader_init();
  codeCache_init();
  VM_Version_init();
  stubRoutines_init1();
  jint status = universe_init();  // dependent on codeCache_init and stubRoutines_init
  if (status != JNI_OK)
    return status;

  interpreter_init();  // before any methods loaded
  invocationCounter_init();  // before any methods loaded
  marksweep_init();
  accessFlags_init();
  templateTable_init();
  InterfaceSupport_init();
  SharedRuntime::generate_stubs();
  universe2_init();  // dependent on codeCache_init and stubRoutines_init
  referenceProcessor_init();
  jni_handles_init();
#ifndef VM_STRUCTS_KERNEL
  vmStructs_init();
#endif // VM_STRUCTS_KERNEL

  vtableStubs_init();
  InlineCacheBuffer_init();
  compilerOracle_init();
  compilationPolicy_init();
  VMRegImpl::set_regName();

  if (!universe_post_init()) {
    return JNI_ERR;
  }
  javaClasses_init();  // must happen after vtable initialization
  stubRoutines_init2(); // note: StubRoutines need 2-phase init

  // Although we'd like to, we can't easily do a heap verify
  // here because the main thread isn't yet a JavaThread, so
  // its TLAB may not be made parseable from the usual interfaces.
  if (VerifyBeforeGC && !UseTLAB &&
      Universe::heap()->total_collections() >= VerifyGCStartAt) {
    Universe::heap()->prepare_for_verify();
    Universe::verify();   // make sure we're starting with a clean slate
  }

  return JNI_OK;
}


void exit_globals() {
  static bool destructorsCalled = false;
  if (!destructorsCalled) {
    destructorsCalled = true;
    perfMemory_exit();
    if (PrintSafepointStatistics) {
      // Print the collected safepoint statistics.
      SafepointSynchronize::print_stat_on_exit();
    }
    ostream_exit();
  }
}


static bool _init_completed = false;

bool is_init_completed() {
  return _init_completed;
}


void set_init_completed() {
  _init_completed = true;
}