hotspot/src/share/vm/gc_implementation/shared/gcOverheadReporter.cpp
changeset 3692 9530a85b334c
parent 3690 dba50b88bd50
parent 3691 c84b8483cd2c
child 3693 af387bf37e8d
--- 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();
-}