251 lines
6.0 KiB
C++
251 lines
6.0 KiB
C++
// -*- C++ -*-
|
|
// Testing performance utilities for the C++ library testsuite.
|
|
//
|
|
// Copyright (C) 2003 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 2, or (at your option)
|
|
// any later version.
|
|
//
|
|
// This library 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 for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along
|
|
// with this library; see the file COPYING. If not, write to the Free
|
|
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
// USA.
|
|
//
|
|
// As a special exception, you may use this file as part of a free software
|
|
// library without restriction. Specifically, if other files instantiate
|
|
// templates or use macros or inline functions from this file, or you compile
|
|
// this file and link it with other files to produce an executable, this
|
|
// file does not by itself cause the resulting executable to be covered by
|
|
// the GNU General Public License. This exception does not however
|
|
// invalidate any other reasons why the executable file might be covered by
|
|
// the GNU General Public License.
|
|
|
|
#ifndef _GLIBCXX_PERFORMANCE_H
|
|
#define _GLIBCXX_PERFORMANCE_H
|
|
|
|
#include <sys/times.h>
|
|
#include <sys/resource.h>
|
|
#include <cstdlib>
|
|
#include <string>
|
|
#include <fstream>
|
|
#include <iomanip>
|
|
|
|
#ifdef __linux__
|
|
#include <malloc.h>
|
|
#elif defined (__FreeBSD__)
|
|
extern "C"
|
|
{
|
|
struct mallinfo
|
|
{
|
|
int uordblks;
|
|
int hblkhd;
|
|
};
|
|
|
|
struct mallinfo
|
|
mallinfo(void)
|
|
{
|
|
struct mallinfo m = { (((size_t) sbrk (0) + 1023) / 1024), 0 };
|
|
return m;
|
|
}
|
|
}
|
|
#else
|
|
extern "C"
|
|
{
|
|
struct mallinfo
|
|
{
|
|
int uordblks;
|
|
int hblkhd;
|
|
};
|
|
|
|
struct mallinfo empty = { 0, 0 };
|
|
|
|
struct mallinfo
|
|
mallinfo(void)
|
|
{ return empty; }
|
|
}
|
|
#endif
|
|
|
|
namespace __gnu_test
|
|
{
|
|
class time_counter
|
|
{
|
|
clock_t elapsed_begin;
|
|
clock_t elapsed_end;
|
|
tms tms_begin;
|
|
tms tms_end;
|
|
|
|
public:
|
|
time_counter()
|
|
{ this->clear(); }
|
|
|
|
void
|
|
clear()
|
|
{
|
|
elapsed_begin = 0;
|
|
elapsed_end = 0;
|
|
memset(&tms_begin, 0, sizeof(tms));
|
|
memset(&tms_end, 0, sizeof(tms));
|
|
}
|
|
|
|
void
|
|
start()
|
|
{ elapsed_begin = times(&tms_begin); }
|
|
|
|
void
|
|
stop()
|
|
{ elapsed_end = times(&tms_end); }
|
|
|
|
size_t
|
|
real_time() const
|
|
{ return elapsed_end - elapsed_begin; }
|
|
|
|
size_t
|
|
user_time() const
|
|
{ return tms_end.tms_utime - tms_begin.tms_utime; }
|
|
|
|
size_t
|
|
system_time() const
|
|
{ return tms_end.tms_stime - tms_begin.tms_stime; }
|
|
};
|
|
|
|
class resource_counter
|
|
{
|
|
int who;
|
|
rusage rusage_begin;
|
|
rusage rusage_end;
|
|
struct mallinfo allocation_begin;
|
|
struct mallinfo allocation_end;
|
|
|
|
public:
|
|
resource_counter(int i = RUSAGE_SELF) : who(i)
|
|
{ this->clear(); }
|
|
|
|
void
|
|
clear()
|
|
{
|
|
memset(&rusage_begin, 0, sizeof(rusage_begin));
|
|
memset(&rusage_end, 0, sizeof(rusage_end));
|
|
memset(&allocation_begin, 0, sizeof(allocation_begin));
|
|
memset(&allocation_end, 0, sizeof(allocation_end));
|
|
}
|
|
|
|
void
|
|
start()
|
|
{
|
|
if (getrusage(who, &rusage_begin) != 0 )
|
|
memset(&rusage_begin, 0, sizeof(rusage_begin));
|
|
malloc(0); // Needed for some implementations.
|
|
allocation_begin = mallinfo();
|
|
}
|
|
|
|
void
|
|
stop()
|
|
{
|
|
if (getrusage(who, &rusage_end) != 0 )
|
|
memset(&rusage_end, 0, sizeof(rusage_end));
|
|
allocation_end = mallinfo();
|
|
}
|
|
|
|
int
|
|
allocated_memory() const
|
|
{ return ((allocation_end.uordblks - allocation_begin.uordblks)
|
|
+ (allocation_end.hblkhd - allocation_begin.hblkhd)); }
|
|
|
|
long
|
|
hard_page_fault() const
|
|
{ return rusage_end.ru_majflt - rusage_begin.ru_majflt; }
|
|
|
|
long
|
|
swapped() const
|
|
{ return rusage_end.ru_nswap - rusage_begin.ru_nswap; }
|
|
};
|
|
|
|
void
|
|
start_counters(time_counter& t, resource_counter& r)
|
|
{
|
|
t.start();
|
|
r.start();
|
|
}
|
|
|
|
void
|
|
stop_counters(time_counter& t, resource_counter& r)
|
|
{
|
|
t.stop();
|
|
r.stop();
|
|
}
|
|
|
|
void
|
|
clear_counters(time_counter& t, resource_counter& r)
|
|
{
|
|
t.clear();
|
|
r.clear();
|
|
}
|
|
|
|
void
|
|
report_performance(const std::string file, const std::string comment,
|
|
const time_counter& t, const resource_counter& r)
|
|
{
|
|
const char space = ' ';
|
|
const char tab = '\t';
|
|
const char* name = "libstdc++-performance.sum";
|
|
std::string::const_iterator i = file.begin() + file.find_last_of('/') + 1;
|
|
std::string testname(i, file.end());
|
|
|
|
std::ofstream out(name, std::ios_base::app);
|
|
|
|
#ifdef __GTHREADS
|
|
if (__gthread_active_p ())
|
|
testname.append ("-thread");
|
|
#endif
|
|
|
|
out.setf(std::ios_base::left);
|
|
out << std::setw(25) << testname << tab;
|
|
out << std::setw(25) << comment << tab;
|
|
|
|
out.setf(std::ios_base::right);
|
|
out << std::setw(4) << t.real_time() << "r" << space;
|
|
out << std::setw(4) << t.user_time() << "u" << space;
|
|
out << std::setw(4) << t.system_time() << "s" << space;
|
|
out << std::setw(8) << r.allocated_memory() << "mem" << space;
|
|
out << std::setw(4) << r.hard_page_fault() << "pf" << space;
|
|
|
|
out << std::endl;
|
|
out.close();
|
|
}
|
|
|
|
void
|
|
report_header(const std::string file, const std::string header)
|
|
{
|
|
const char space = ' ';
|
|
const char tab = '\t';
|
|
const char* name = "libstdc++-performance.sum";
|
|
std::string::const_iterator i = file.begin() + file.find_last_of('/') + 1;
|
|
std::string testname(i, file.end());
|
|
|
|
std::ofstream out(name, std::ios_base::app);
|
|
|
|
#ifdef __GTHREADS
|
|
if (__gthread_active_p ())
|
|
testname.append ("-thread");
|
|
#endif
|
|
|
|
out.setf(std::ios_base::left);
|
|
out << std::setw(25) << testname << tab;
|
|
out << std::setw(40) << header << tab;
|
|
|
|
out << std::endl;
|
|
out.close();
|
|
}
|
|
}; // namespace __gnu_test
|
|
|
|
#endif // _GLIBCXX_PERFORMANCE_H
|
|
|