1 /*

     2  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 #include "precompiled.hpp"

    26 #include "memory/specialized_oop_closures.hpp"

    27 #include "utilities/ostream.hpp"

    28 

    29 // For keeping stats on effectiveness.

    30 #ifndef PRODUCT

    31 #if ENABLE_SPECIALIZATION_STATS

    32 

    33 int SpecializationStats::_numCallsAll;

    34 

    35 int SpecializationStats::_numCallsTotal[NUM_Kinds];

    36 int SpecializationStats::_numCalls_nv[NUM_Kinds];

    37 

    38 int SpecializationStats::_numDoOopCallsTotal[NUM_Kinds];

    39 int SpecializationStats::_numDoOopCalls_nv[NUM_Kinds];

    40 

    41 void SpecializationStats::clear() {

    42   _numCallsAll = 0;

    43   for (int k = ik; k < NUM_Kinds; k++) {

    44     _numCallsTotal[k] = 0;

    45     _numCalls_nv[k] = 0;

    46 

    47     _numDoOopCallsTotal[k] = 0;

    48     _numDoOopCalls_nv[k] = 0;

    49   }

    50 }

    51 

    52 void SpecializationStats::print() {

    53   const char* header_format = "    %20s %10s %11s %10s";

    54   const char* line_format   = "    %20s %10d %11d %9.2f%%";

    55   int all_numCallsTotal =

    56     _numCallsTotal[ik] + _numCallsTotal[irk] + _numCallsTotal[oa];

    57   int all_numCalls_nv =

    58     _numCalls_nv[ik] + _numCalls_nv[irk] + _numCalls_nv[oa];

    59   gclog_or_tty->print_cr("\nOf %d oop_oop_iterate calls %d (%6.3f%%) are in (ik, irk, oa).",

    60                 _numCallsAll, all_numCallsTotal,

    61                 100.0 * (float)all_numCallsTotal / (float)_numCallsAll);

    62   // irk calls are double-counted.

    63   int real_ik_numCallsTotal = _numCallsTotal[ik] - _numCallsTotal[irk];

    64   int real_ik_numCalls_nv   = _numCalls_nv[ik]   - _numCalls_nv[irk];

    65   gclog_or_tty->print_cr("");

    66   gclog_or_tty->print_cr(header_format, "oop_oop_iterate:", "calls", "non-virtual", "pct");

    67   gclog_or_tty->print_cr(header_format,

    68                 "----------",

    69                 "----------",

    70                 "-----------",

    71                 "----------");

    72   gclog_or_tty->print_cr(line_format, "all",

    73                 all_numCallsTotal,

    74                 all_numCalls_nv,

    75                 100.0 * (float)all_numCalls_nv / (float)all_numCallsTotal);

    76   gclog_or_tty->print_cr(line_format, "ik",

    77                 real_ik_numCallsTotal, real_ik_numCalls_nv,

    78                 100.0 * (float)real_ik_numCalls_nv /

    79                 (float)real_ik_numCallsTotal);

    80   gclog_or_tty->print_cr(line_format, "irk",

    81                 _numCallsTotal[irk], _numCalls_nv[irk],

    82                 100.0 * (float)_numCalls_nv[irk] / (float)_numCallsTotal[irk]);

    83   gclog_or_tty->print_cr(line_format, "oa",

    84                 _numCallsTotal[oa], _numCalls_nv[oa],

    85                 100.0 * (float)_numCalls_nv[oa] / (float)_numCallsTotal[oa]);

    86 

    87 

    88   gclog_or_tty->print_cr("");

    89   gclog_or_tty->print_cr(header_format, "do_oop:", "calls", "non-virtual", "pct");

    90   gclog_or_tty->print_cr(header_format,

    91                 "----------",

    92                 "----------",

    93                 "-----------",

    94                 "----------");

    95   int all_numDoOopCallsTotal =

    96     _numDoOopCallsTotal[ik] + _numDoOopCallsTotal[irk] + _numDoOopCallsTotal[oa];

    97   int all_numDoOopCalls_nv =

    98     _numDoOopCalls_nv[ik] + _numDoOopCalls_nv[irk] + _numDoOopCalls_nv[oa];

    99   gclog_or_tty->print_cr(line_format, "all",

   100                 all_numDoOopCallsTotal, all_numDoOopCalls_nv,

   101                 100.0 * (float)all_numDoOopCalls_nv /

   102                 (float)all_numDoOopCallsTotal);

   103   const char* kind_names[] = { "ik", "irk", "oa" };

   104   for (int k = ik; k < NUM_Kinds; k++) {

   105     gclog_or_tty->print_cr(line_format, kind_names[k],

   106                   _numDoOopCallsTotal[k], _numDoOopCalls_nv[k],

   107                   (_numDoOopCallsTotal[k] > 0 ?

   108                    100.0 * (float)_numDoOopCalls_nv[k] /

   109                    (float)_numDoOopCallsTotal[k]

   110                    : 0.0));

   111   }

   112 }

   113 

   114 #endif  // ENABLE_SPECIALIZATION_STATS

   115 #endif  // !PRODUCT