--- a/hotspot/src/share/vm/gc_implementation/shared/gcOverheadReporter.cpp Mon Aug 24 10:36:31 2009 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,179 +0,0 @@
-/*
- * Copyright 2001-2007 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/_gcOverheadReporter.cpp.incl"
-
-class COReportingThread : public ConcurrentGCThread {
-private:
- GCOverheadReporter* _reporter;
-
-public:
- COReportingThread(GCOverheadReporter* reporter) : _reporter(reporter) {
- guarantee( _reporter != NULL, "precondition" );
- create_and_start();
- }
-
- virtual void run() {
- initialize_in_thread();
- wait_for_universe_init();
-
- int period_ms = GCOverheadReportingPeriodMS;
-
- while ( true ) {
- os::sleep(Thread::current(), period_ms, false);
-
- _sts.join();
- double now_sec = os::elapsedTime();
- _reporter->collect_and_record_conc_overhead(now_sec);
- _sts.leave();
- }
-
- terminate();
- }
-};
-
-GCOverheadReporter* GCOverheadReporter::_reporter = NULL;
-
-GCOverheadReporter::GCOverheadReporter(size_t group_num,
- const char* group_names[],
- size_t length)
- : _group_num(group_num), _prev_end_sec(0.0) {
- guarantee( 0 <= group_num && group_num <= MaxGCOverheadGroupNum,
- "precondition" );
-
- _base = NEW_C_HEAP_ARRAY(GCOverheadReporterEntry, length);
- _top = _base + length;
- _curr = _base;
-
- for (size_t i = 0; i < group_num; ++i) {
- guarantee( group_names[i] != NULL, "precondition" );
- _group_names[i] = group_names[i];
- }
-}
-
-void
-GCOverheadReporter::add(double start_sec, double end_sec,
- double* conc_overhead,
- double stw_overhead) {
- assert( _curr <= _top, "invariant" );
-
- if (_curr == _top) {
- guarantee( false, "trace full" );
- return;
- }
-
- _curr->_start_sec = start_sec;
- _curr->_end_sec = end_sec;
- for (size_t i = 0; i < _group_num; ++i) {
- _curr->_conc_overhead[i] =
- (conc_overhead != NULL) ? conc_overhead[i] : 0.0;
- }
- _curr->_stw_overhead = stw_overhead;
-
- ++_curr;
-}
-
-void
-GCOverheadReporter::collect_and_record_conc_overhead(double end_sec) {
- double start_sec = _prev_end_sec;
- guarantee( end_sec > start_sec, "invariant" );
-
- double conc_overhead[MaxGCOverheadGroupNum];
- COTracker::totalConcOverhead(end_sec, _group_num, conc_overhead);
- add_conc_overhead(start_sec, end_sec, conc_overhead);
- _prev_end_sec = end_sec;
-}
-
-void
-GCOverheadReporter::record_stw_start(double start_sec) {
- guarantee( start_sec > _prev_end_sec, "invariant" );
- collect_and_record_conc_overhead(start_sec);
-}
-
-void
-GCOverheadReporter::record_stw_end(double end_sec) {
- double start_sec = _prev_end_sec;
- COTracker::updateAllForSTW(start_sec, end_sec);
- add_stw_overhead(start_sec, end_sec, 1.0);
-
- _prev_end_sec = end_sec;
-}
-
-void
-GCOverheadReporter::print() const {
- tty->print_cr("");
- tty->print_cr("GC Overhead (%d entries)", _curr - _base);
- tty->print_cr("");
- GCOverheadReporterEntry* curr = _base;
- while (curr < _curr) {
- double total = curr->_stw_overhead;
- for (size_t i = 0; i < _group_num; ++i)
- total += curr->_conc_overhead[i];
-
- tty->print("OVERHEAD %12.8lf %12.8lf ",
- curr->_start_sec, curr->_end_sec);
-
- for (size_t i = 0; i < _group_num; ++i)
- tty->print("%s %12.8lf ", _group_names[i], curr->_conc_overhead[i]);
-
- tty->print_cr("STW %12.8lf TOT %12.8lf", curr->_stw_overhead, total);
- ++curr;
- }
- tty->print_cr("");
-}
-
-// statics
-
-void
-GCOverheadReporter::initGCOverheadReporter(size_t group_num,
- const char* group_names[]) {
- guarantee( _reporter == NULL, "should only be called once" );
- guarantee( 0 <= group_num && group_num <= MaxGCOverheadGroupNum,
- "precondition" );
- guarantee( group_names != NULL, "pre-condition" );
-
- if (GCOverheadReporting) {
- _reporter = new GCOverheadReporter(group_num, group_names);
- new COReportingThread(_reporter);
- }
-}
-
-void
-GCOverheadReporter::recordSTWStart(double start_sec) {
- if (_reporter != NULL)
- _reporter->record_stw_start(start_sec);
-}
-
-void
-GCOverheadReporter::recordSTWEnd(double end_sec) {
- if (_reporter != NULL)
- _reporter->record_stw_end(end_sec);
-}
-
-void
-GCOverheadReporter::printGCOverhead() {
- if (_reporter != NULL)
- _reporter->print();
-}