1.1 --- a/src/share/vm/gc_implementation/shared/gcOverheadReporter.cpp Fri Aug 14 13:44:15 2009 -0700
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,179 +0,0 @@
1.4 -/*
1.5 - * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation.
1.11 - *
1.12 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 - * version 2 for more details (a copy is included in the LICENSE file that
1.16 - * accompanied this code).
1.17 - *
1.18 - * You should have received a copy of the GNU General Public License version
1.19 - * 2 along with this work; if not, write to the Free Software Foundation,
1.20 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 - *
1.22 - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1.23 - * CA 95054 USA or visit www.sun.com if you need additional information or
1.24 - * have any questions.
1.25 - *
1.26 - */
1.27 -
1.28 -# include "incls/_precompiled.incl"
1.29 -# include "incls/_gcOverheadReporter.cpp.incl"
1.30 -
1.31 -class COReportingThread : public ConcurrentGCThread {
1.32 -private:
1.33 - GCOverheadReporter* _reporter;
1.34 -
1.35 -public:
1.36 - COReportingThread(GCOverheadReporter* reporter) : _reporter(reporter) {
1.37 - guarantee( _reporter != NULL, "precondition" );
1.38 - create_and_start();
1.39 - }
1.40 -
1.41 - virtual void run() {
1.42 - initialize_in_thread();
1.43 - wait_for_universe_init();
1.44 -
1.45 - int period_ms = GCOverheadReportingPeriodMS;
1.46 -
1.47 - while ( true ) {
1.48 - os::sleep(Thread::current(), period_ms, false);
1.49 -
1.50 - _sts.join();
1.51 - double now_sec = os::elapsedTime();
1.52 - _reporter->collect_and_record_conc_overhead(now_sec);
1.53 - _sts.leave();
1.54 - }
1.55 -
1.56 - terminate();
1.57 - }
1.58 -};
1.59 -
1.60 -GCOverheadReporter* GCOverheadReporter::_reporter = NULL;
1.61 -
1.62 -GCOverheadReporter::GCOverheadReporter(size_t group_num,
1.63 - const char* group_names[],
1.64 - size_t length)
1.65 - : _group_num(group_num), _prev_end_sec(0.0) {
1.66 - guarantee( 0 <= group_num && group_num <= MaxGCOverheadGroupNum,
1.67 - "precondition" );
1.68 -
1.69 - _base = NEW_C_HEAP_ARRAY(GCOverheadReporterEntry, length);
1.70 - _top = _base + length;
1.71 - _curr = _base;
1.72 -
1.73 - for (size_t i = 0; i < group_num; ++i) {
1.74 - guarantee( group_names[i] != NULL, "precondition" );
1.75 - _group_names[i] = group_names[i];
1.76 - }
1.77 -}
1.78 -
1.79 -void
1.80 -GCOverheadReporter::add(double start_sec, double end_sec,
1.81 - double* conc_overhead,
1.82 - double stw_overhead) {
1.83 - assert( _curr <= _top, "invariant" );
1.84 -
1.85 - if (_curr == _top) {
1.86 - guarantee( false, "trace full" );
1.87 - return;
1.88 - }
1.89 -
1.90 - _curr->_start_sec = start_sec;
1.91 - _curr->_end_sec = end_sec;
1.92 - for (size_t i = 0; i < _group_num; ++i) {
1.93 - _curr->_conc_overhead[i] =
1.94 - (conc_overhead != NULL) ? conc_overhead[i] : 0.0;
1.95 - }
1.96 - _curr->_stw_overhead = stw_overhead;
1.97 -
1.98 - ++_curr;
1.99 -}
1.100 -
1.101 -void
1.102 -GCOverheadReporter::collect_and_record_conc_overhead(double end_sec) {
1.103 - double start_sec = _prev_end_sec;
1.104 - guarantee( end_sec > start_sec, "invariant" );
1.105 -
1.106 - double conc_overhead[MaxGCOverheadGroupNum];
1.107 - COTracker::totalConcOverhead(end_sec, _group_num, conc_overhead);
1.108 - add_conc_overhead(start_sec, end_sec, conc_overhead);
1.109 - _prev_end_sec = end_sec;
1.110 -}
1.111 -
1.112 -void
1.113 -GCOverheadReporter::record_stw_start(double start_sec) {
1.114 - guarantee( start_sec > _prev_end_sec, "invariant" );
1.115 - collect_and_record_conc_overhead(start_sec);
1.116 -}
1.117 -
1.118 -void
1.119 -GCOverheadReporter::record_stw_end(double end_sec) {
1.120 - double start_sec = _prev_end_sec;
1.121 - COTracker::updateAllForSTW(start_sec, end_sec);
1.122 - add_stw_overhead(start_sec, end_sec, 1.0);
1.123 -
1.124 - _prev_end_sec = end_sec;
1.125 -}
1.126 -
1.127 -void
1.128 -GCOverheadReporter::print() const {
1.129 - tty->print_cr("");
1.130 - tty->print_cr("GC Overhead (%d entries)", _curr - _base);
1.131 - tty->print_cr("");
1.132 - GCOverheadReporterEntry* curr = _base;
1.133 - while (curr < _curr) {
1.134 - double total = curr->_stw_overhead;
1.135 - for (size_t i = 0; i < _group_num; ++i)
1.136 - total += curr->_conc_overhead[i];
1.137 -
1.138 - tty->print("OVERHEAD %12.8lf %12.8lf ",
1.139 - curr->_start_sec, curr->_end_sec);
1.140 -
1.141 - for (size_t i = 0; i < _group_num; ++i)
1.142 - tty->print("%s %12.8lf ", _group_names[i], curr->_conc_overhead[i]);
1.143 -
1.144 - tty->print_cr("STW %12.8lf TOT %12.8lf", curr->_stw_overhead, total);
1.145 - ++curr;
1.146 - }
1.147 - tty->print_cr("");
1.148 -}
1.149 -
1.150 -// statics
1.151 -
1.152 -void
1.153 -GCOverheadReporter::initGCOverheadReporter(size_t group_num,
1.154 - const char* group_names[]) {
1.155 - guarantee( _reporter == NULL, "should only be called once" );
1.156 - guarantee( 0 <= group_num && group_num <= MaxGCOverheadGroupNum,
1.157 - "precondition" );
1.158 - guarantee( group_names != NULL, "pre-condition" );
1.159 -
1.160 - if (GCOverheadReporting) {
1.161 - _reporter = new GCOverheadReporter(group_num, group_names);
1.162 - new COReportingThread(_reporter);
1.163 - }
1.164 -}
1.165 -
1.166 -void
1.167 -GCOverheadReporter::recordSTWStart(double start_sec) {
1.168 - if (_reporter != NULL)
1.169 - _reporter->record_stw_start(start_sec);
1.170 -}
1.171 -
1.172 -void
1.173 -GCOverheadReporter::recordSTWEnd(double end_sec) {
1.174 - if (_reporter != NULL)
1.175 - _reporter->record_stw_end(end_sec);
1.176 -}
1.177 -
1.178 -void
1.179 -GCOverheadReporter::printGCOverhead() {
1.180 - if (_reporter != NULL)
1.181 - _reporter->print();
1.182 -}
