jdk8-mips64-public/hotspot: src/share/vm/runtime/timer.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/timer.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/timer.cpp

Thu, 24 May 2018 20:03:11 +0800

author: aoqi
date: Thu, 24 May 2018 20:03:11 +0800
changeset 8868: 91ddc23482a4
parent 6876: 710a3c8b516e
permissions: -rw-r--r--

Increase MaxHeapSize for better performance on MIPS

 /*
  * Copyright (c) 1997, 2014, 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 "oops/oop.inline.hpp"
 #include "runtime/timer.hpp"
 #include "utilities/ostream.hpp"
 #ifdef TARGET_OS_FAMILY_linux
 # include "os_linux.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_solaris
 # include "os_solaris.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_windows
 # include "os_windows.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_aix
 # include "os_aix.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_bsd
 # include "os_bsd.inline.hpp"
 #endif
 double TimeHelper::counter_to_seconds(jlong counter) {
   double count = (double) counter;
   double freq  = (double) os::elapsed_frequency();
   return counter/freq;
 }
 void elapsedTimer::add(elapsedTimer t) {
   _counter += t._counter;
 }
 void elapsedTimer::start() {
   if (!_active) {
     _active = true;
     _start_counter = os::elapsed_counter();
   }
 }
 void elapsedTimer::stop() {
   if (_active) {
     _counter += os::elapsed_counter() - _start_counter;
     _active = false;
   }
 }
 double elapsedTimer::seconds() const {
  return TimeHelper::counter_to_seconds(_counter);
 }
 jlong elapsedTimer::milliseconds() const {
   jlong ticks_per_ms = os::elapsed_frequency() / 1000;
   return _counter / ticks_per_ms;
 }
 jlong elapsedTimer::active_ticks() const {
   if (!_active) {
     return ticks();
   }
   jlong counter = _counter + os::elapsed_counter() - _start_counter;
   return counter;
 }
 void TimeStamp::update_to(jlong ticks) {
   _counter = ticks;
   if (_counter == 0)  _counter = 1;
   assert(is_updated(), "must not look clear");
 }
 void TimeStamp::update() {
   update_to(os::elapsed_counter());
 }
 double TimeStamp::seconds() const {
   assert(is_updated(), "must not be clear");
   jlong new_count = os::elapsed_counter();
   return TimeHelper::counter_to_seconds(new_count - _counter);
 }
 jlong TimeStamp::milliseconds() const {
   assert(is_updated(), "must not be clear");
   jlong new_count = os::elapsed_counter();
   jlong count = new_count - _counter;
   jlong ticks_per_ms = os::elapsed_frequency() / 1000;
   return count / ticks_per_ms;
 }
 jlong TimeStamp::ticks_since_update() const {
   assert(is_updated(), "must not be clear");
   return os::elapsed_counter() - _counter;
 }
 TraceTime::TraceTime(const char* title,
                      bool doit) {
   _active   = doit;
   _verbose  = true;
   if (_active) {
     _accum = NULL;
     tty->stamp(PrintGCTimeStamps);
     tty->print("[%s", title);
     tty->flush();
     _t.start();
   }
 }
 TraceTime::TraceTime(const char* title,
                      elapsedTimer* accumulator,
                      bool doit,
                      bool verbose) {
   _active = doit;
   _verbose = verbose;
   if (_active) {
     if (_verbose) {
       tty->stamp(PrintGCTimeStamps);
       tty->print("[%s", title);
       tty->flush();
     }
     _accum = accumulator;
     _t.start();
   }
 }
 TraceTime::~TraceTime() {
   if (_active) {
     _t.stop();
     if (_accum!=NULL) _accum->add(_t);
     if (_verbose) {
       tty->print_cr(", %3.7f secs]", _t.seconds());
       tty->flush();
     }
   }
 }
 TraceCPUTime::TraceCPUTime(bool doit,
                bool print_cr,
                outputStream *logfile) :
   _active(doit),
   _print_cr(print_cr),
   _starting_user_time(0.0),
   _starting_system_time(0.0),
   _starting_real_time(0.0),
   _logfile(logfile),
   _error(false) {
   if (_active) {
     if (logfile != NULL) {
       _logfile = logfile;
     } else {
       _logfile = tty;
     }
     _error = !os::getTimesSecs(&_starting_real_time,
                                &_starting_user_time,
                                &_starting_system_time);
   }
 }
 TraceCPUTime::~TraceCPUTime() {
   if (_active) {
     bool valid = false;
     if (!_error) {
       double real_secs;                 // walk clock time
       double system_secs;               // system time
       double user_secs;                 // user time for all threads
       double real_time, user_time, system_time;
       valid = os::getTimesSecs(&real_time, &user_time, &system_time);
       if (valid) {
         user_secs = user_time - _starting_user_time;
         system_secs = system_time - _starting_system_time;
         real_secs = real_time - _starting_real_time;
         _logfile->print(" [Times: user=%3.2f sys=%3.2f, real=%3.2f secs] ",
           user_secs, system_secs, real_secs);
       } else {
         _logfile->print("[Invalid result in TraceCPUTime]");
       }
     } else {
       _logfile->print("[Error in TraceCPUTime]");
     }
     if (_print_cr) {
       _logfile->cr();
     }
     _logfile->flush();
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/runtime/timer.cpp@91ddc23482a4 (annotated)

src/share/vm/runtime/timer.cpp