Mercurial > hg > graal-jvmci-8

view src/share/vm/memory/specialized_oop_closures.cpp @ 3772:6747fd0512e0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7004681: G1: Extend marking verification to Full GCs Summary: Perform a heap verification after the first phase of G1's full GC using objects' mark words to determine liveness. The third parameter of the heap verification routines, which was used in G1 to determine which marking bitmap to use in liveness calculations, has been changed from a boolean to an enum with values defined for using the mark word, and the 'prev' and 'next' bitmaps. Reviewed-by: tonyp, ysr
author johnc
date Tue, 14 Jun 2011 11:01:10 -0700
parents f95d63e2154a
children
line wrap: on
line source

/*
 * Copyright (c) 2001, 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.
 *
 * 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.
 *
 */

#include "precompiled.hpp"
#include "memory/specialized_oop_closures.hpp"
#include "utilities/ostream.hpp"

// For keeping stats on effectiveness.
#ifndef PRODUCT
#if ENABLE_SPECIALIZATION_STATS

int SpecializationStats::_numCallsAll;

int SpecializationStats::_numCallsTotal[NUM_Kinds];
int SpecializationStats::_numCalls_nv[NUM_Kinds];

int SpecializationStats::_numDoOopCallsTotal[NUM_Kinds];
int SpecializationStats::_numDoOopCalls_nv[NUM_Kinds];

void SpecializationStats::clear() {
  _numCallsAll = 0;
  for (int k = ik; k < NUM_Kinds; k++) {
    _numCallsTotal[k] = 0;
    _numCalls_nv[k] = 0;

    _numDoOopCallsTotal[k] = 0;
    _numDoOopCalls_nv[k] = 0;
  }
}

void SpecializationStats::print() {
  const char* header_format = "    %20s %10s %11s %10s";
  const char* line_format   = "    %20s %10d %11d %9.2f%%";
  int all_numCallsTotal =
    _numCallsTotal[ik] + _numCallsTotal[irk] + _numCallsTotal[oa];
  int all_numCalls_nv =
    _numCalls_nv[ik] + _numCalls_nv[irk] + _numCalls_nv[oa];
  gclog_or_tty->print_cr("\nOf %d oop_oop_iterate calls %d (%6.3f%%) are in (ik, irk, oa).",
                _numCallsAll, all_numCallsTotal,
                100.0 * (float)all_numCallsTotal / (float)_numCallsAll);
  // irk calls are double-counted.
  int real_ik_numCallsTotal = _numCallsTotal[ik] - _numCallsTotal[irk];
  int real_ik_numCalls_nv   = _numCalls_nv[ik]   - _numCalls_nv[irk];
  gclog_or_tty->print_cr("");
  gclog_or_tty->print_cr(header_format, "oop_oop_iterate:", "calls", "non-virtual", "pct");
  gclog_or_tty->print_cr(header_format,
                "----------",
                "----------",
                "-----------",
                "----------");
  gclog_or_tty->print_cr(line_format, "all",
                all_numCallsTotal,
                all_numCalls_nv,
                100.0 * (float)all_numCalls_nv / (float)all_numCallsTotal);
  gclog_or_tty->print_cr(line_format, "ik",
                real_ik_numCallsTotal, real_ik_numCalls_nv,
                100.0 * (float)real_ik_numCalls_nv /
                (float)real_ik_numCallsTotal);
  gclog_or_tty->print_cr(line_format, "irk",
                _numCallsTotal[irk], _numCalls_nv[irk],
                100.0 * (float)_numCalls_nv[irk] / (float)_numCallsTotal[irk]);
  gclog_or_tty->print_cr(line_format, "oa",
                _numCallsTotal[oa], _numCalls_nv[oa],
                100.0 * (float)_numCalls_nv[oa] / (float)_numCallsTotal[oa]);


  gclog_or_tty->print_cr("");
  gclog_or_tty->print_cr(header_format, "do_oop:", "calls", "non-virtual", "pct");
  gclog_or_tty->print_cr(header_format,
                "----------",
                "----------",
                "-----------",
                "----------");
  int all_numDoOopCallsTotal =
    _numDoOopCallsTotal[ik] + _numDoOopCallsTotal[irk] + _numDoOopCallsTotal[oa];
  int all_numDoOopCalls_nv =
    _numDoOopCalls_nv[ik] + _numDoOopCalls_nv[irk] + _numDoOopCalls_nv[oa];
  gclog_or_tty->print_cr(line_format, "all",
                all_numDoOopCallsTotal, all_numDoOopCalls_nv,
                100.0 * (float)all_numDoOopCalls_nv /
                (float)all_numDoOopCallsTotal);
  const char* kind_names[] = { "ik", "irk", "oa" };
  for (int k = ik; k < NUM_Kinds; k++) {
    gclog_or_tty->print_cr(line_format, kind_names[k],
                  _numDoOopCallsTotal[k], _numDoOopCalls_nv[k],
                  (_numDoOopCallsTotal[k] > 0 ?
                   100.0 * (float)_numDoOopCalls_nv[k] /
                   (float)_numDoOopCallsTotal[k]
                   : 0.0));
  }
}

#endif  // ENABLE_SPECIALIZATION_STATS
#endif  // !PRODUCT