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83f517994d
2005-08-17 Kelley Cook <kcook@gcc.gnu.org> * All files: Update FSF address. From-SVN: r103192
264 lines
6.4 KiB
C++
264 lines
6.4 KiB
C++
// -*- C++ -*-
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// Testing performance utilities for the C++ library testsuite.
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//
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// Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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// USA.
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//
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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#ifndef _GLIBCXX_PERFORMANCE_H
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#define _GLIBCXX_PERFORMANCE_H
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#include <sys/times.h>
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#include <sys/resource.h>
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#include <cstdlib>
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#include <string>
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#include <fstream>
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#include <iomanip>
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#ifdef __linux__
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#include <malloc.h>
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#elif defined (__FreeBSD__)
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extern "C"
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{
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struct mallinfo
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{
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int uordblks;
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int hblkhd;
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};
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struct mallinfo
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mallinfo(void)
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{
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struct mallinfo m = { (((size_t) sbrk (0) + 1023) / 1024), 0 };
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return m;
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}
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}
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#elif !defined (__hpux__)
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extern "C"
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{
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struct mallinfo
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{
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int uordblks;
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int hblkhd;
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};
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struct mallinfo empty = { 0, 0 };
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struct mallinfo
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mallinfo(void)
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{ return empty; }
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}
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#endif
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namespace __gnu_test
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{
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class time_counter
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{
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private:
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clock_t elapsed_begin;
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clock_t elapsed_end;
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tms tms_begin;
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tms tms_end;
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public:
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explicit
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time_counter() : elapsed_begin(), elapsed_end(), tms_begin(), tms_end()
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{ }
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void
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clear() throw()
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{
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elapsed_begin = clock_t();
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elapsed_end = clock_t();
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tms_begin = tms();
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tms_end = tms();
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}
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void
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start()
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{
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this->clear();
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elapsed_begin = times(&tms_begin);
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const clock_t err = clock_t(-1);
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if (elapsed_begin == err)
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std::__throw_runtime_error("time_counter::start");
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}
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void
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stop()
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{
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elapsed_end = times(&tms_end);
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const clock_t err = clock_t(-1);
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if (elapsed_end == err)
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std::__throw_runtime_error("time_counter::stop");
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}
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size_t
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real_time() const
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{ return elapsed_end - elapsed_begin; }
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size_t
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user_time() const
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{ return tms_end.tms_utime - tms_begin.tms_utime; }
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size_t
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system_time() const
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{ return tms_end.tms_stime - tms_begin.tms_stime; }
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};
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class resource_counter
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{
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int who;
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rusage rusage_begin;
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rusage rusage_end;
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struct mallinfo allocation_begin;
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struct mallinfo allocation_end;
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public:
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resource_counter(int i = RUSAGE_SELF) : who(i)
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{ this->clear(); }
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void
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clear() throw()
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{
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memset(&rusage_begin, 0, sizeof(rusage_begin));
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memset(&rusage_end, 0, sizeof(rusage_end));
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memset(&allocation_begin, 0, sizeof(allocation_begin));
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memset(&allocation_end, 0, sizeof(allocation_end));
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}
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void
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start()
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{
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if (getrusage(who, &rusage_begin) != 0 )
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memset(&rusage_begin, 0, sizeof(rusage_begin));
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malloc(0); // Needed for some implementations.
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allocation_begin = mallinfo();
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}
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void
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stop()
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{
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if (getrusage(who, &rusage_end) != 0 )
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memset(&rusage_end, 0, sizeof(rusage_end));
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allocation_end = mallinfo();
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}
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int
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allocated_memory() const
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{ return ((allocation_end.uordblks - allocation_begin.uordblks)
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+ (allocation_end.hblkhd - allocation_begin.hblkhd)); }
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long
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hard_page_fault() const
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{ return rusage_end.ru_majflt - rusage_begin.ru_majflt; }
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long
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swapped() const
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{ return rusage_end.ru_nswap - rusage_begin.ru_nswap; }
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};
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inline void
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start_counters(time_counter& t, resource_counter& r)
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{
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t.start();
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r.start();
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}
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inline void
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stop_counters(time_counter& t, resource_counter& r)
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{
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t.stop();
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r.stop();
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}
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inline void
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clear_counters(time_counter& t, resource_counter& r)
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{
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t.clear();
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r.clear();
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}
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void
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report_performance(const std::string file, const std::string comment,
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const time_counter& t, const resource_counter& r)
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{
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const char space = ' ';
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const char tab = '\t';
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const char* name = "libstdc++-performance.sum";
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std::string::const_iterator i = file.begin() + file.find_last_of('/') + 1;
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std::string testname(i, file.end());
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std::ofstream out(name, std::ios_base::app);
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#ifdef __GTHREADS
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if (__gthread_active_p())
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testname.append("-thread");
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#endif
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out.setf(std::ios_base::left);
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out << std::setw(25) << testname << tab;
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out << std::setw(25) << comment << tab;
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out.setf(std::ios_base::right);
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out << std::setw(4) << t.real_time() << "r" << space;
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out << std::setw(4) << t.user_time() << "u" << space;
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out << std::setw(4) << t.system_time() << "s" << space;
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out << std::setw(8) << r.allocated_memory() << "mem" << space;
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out << std::setw(4) << r.hard_page_fault() << "pf" << space;
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out << std::endl;
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out.close();
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}
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void
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report_header(const std::string file, const std::string header)
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{
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const char space = ' ';
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const char tab = '\t';
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const char* name = "libstdc++-performance.sum";
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std::string::const_iterator i = file.begin() + file.find_last_of('/') + 1;
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std::string testname(i, file.end());
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std::ofstream out(name, std::ios_base::app);
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#ifdef __GTHREADS
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if (__gthread_active_p ())
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testname.append("-thread");
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#endif
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out.setf(std::ios_base::left);
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out << std::setw(25) << testname << tab;
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out << std::setw(40) << header << tab;
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out << std::endl;
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out.close();
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}
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}; // namespace __gnu_test
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#endif // _GLIBCXX_PERFORMANCE_H
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