| // -*- C++ -*- |
| // Testing performance utilities for the C++ library testsuite. |
| // |
| // Copyright (C) 2003, 2004, 2005 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; |
| } |
| } |
| #elif !defined (__hpux__) |
| 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 |
| { |
| private: |
| clock_t elapsed_begin; |
| clock_t elapsed_end; |
| tms tms_begin; |
| tms tms_end; |
| |
| public: |
| explicit |
| time_counter() : elapsed_begin(), elapsed_end(), tms_begin(), tms_end() |
| { } |
| |
| void |
| clear() throw() |
| { |
| elapsed_begin = clock_t(); |
| elapsed_end = clock_t(); |
| tms_begin = tms(); |
| tms_end = tms(); |
| } |
| |
| void |
| start() |
| { |
| this->clear(); |
| elapsed_begin = times(&tms_begin); |
| const clock_t err = clock_t(-1); |
| if (elapsed_begin == err) |
| std::__throw_runtime_error("time_counter::start"); |
| } |
| |
| void |
| stop() |
| { |
| elapsed_end = times(&tms_end); |
| const clock_t err = clock_t(-1); |
| if (elapsed_end == err) |
| std::__throw_runtime_error("time_counter::stop"); |
| } |
| |
| 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() throw() |
| { |
| 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; } |
| }; |
| |
| inline void |
| start_counters(time_counter& t, resource_counter& r) |
| { |
| t.start(); |
| r.start(); |
| } |
| |
| inline void |
| stop_counters(time_counter& t, resource_counter& r) |
| { |
| t.stop(); |
| r.stop(); |
| } |
| |
| inline 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 |
| |