/*

 * 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