Mercurial > hg > graal-compiler
view src/share/vm/runtime/timer.cpp @ 12350:ab68fc0101ce
8025855: Simplify GenRemSet code slightly
Summary: Remove a few redundant switch-statements
Reviewed-by: jcoomes, tschatzl
author | jwilhelm |
---|---|
date | Thu, 03 Oct 2013 13:19:19 +0200 |
parents | f2110083203d |
children | c0b0974dd509 bdd155477289 |
line wrap: on
line source
/* * Copyright (c) 1997, 2013, 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_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->print_cr(""); } _logfile->flush(); } }