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Edit File : profiler_list_to_vector.h \| Size : 6.68 KB
// -- C++ -- // // Copyright (C) 2009-2018 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 3, 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. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // <http://www.gnu.org/licenses/>. /** @file profile/impl/profiler_list_to_vector.h * @brief diagnostics for list to vector. / // Written by Changhee Jung. #ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H #define _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H 1 #include <sstream> #include "profile/impl/profiler.h" #include "profile/impl/profiler_node.h" #include "profile/impl/profiler_trace.h" namespace __gnu_profile { /* @brief A list-to-vector instrumentation line in the object table. / class __list2vector_info : public __object_info_base { public: __list2vector_info(__stack_t __stack) : __object_info_base(__stack), _M_shift_count(0), _M_iterate(0), _M_resize(0), _M_list_cost(0), _M_vector_cost(0), _M_max_size(0) { } void __merge(const __list2vector_info& __o) { __object_info_base::__merge(__o); _M_shift_count += __o._M_shift_count; _M_iterate += __o._M_iterate; _M_vector_cost += __o._M_vector_cost; _M_list_cost += __o._M_list_cost; _M_resize += __o._M_resize; _M_max_size = std::max( _M_max_size, __o._M_max_size); } void __write(FILE __f) const { std::fprintf(__f, "%Zu %Zu %Zu %.0f %.0f\n", _M_shift_count, _M_resize, _M_iterate, _M_vector_cost, _M_list_cost); } float __magnitude() const { return _M_list_cost - _M_vector_cost; } std::string __advice() const { std::stringstream __sstream; __sstream << "change std::list to std::vector and its initial size from 0 to " << _M_max_size; return __sstream.str(); } std::size_t __shift_count() { return _M_shift_count; } std::size_t __iterate() { return _M_iterate; } float __list_cost() { return _M_list_cost; } std::size_t __resize() { return _M_resize; } void __set_list_cost(float __lc) { _M_list_cost = __lc; } void __set_vector_cost(float __vc) { _M_vector_cost = __vc; } void __opr_insert(std::size_t __shift, std::size_t __size) { _M_shift_count += __shift; _M_max_size = std::max(_M_max_size, __size); } void __opr_iterate(int __num) { __gnu_cxx::__atomic_add(&_M_iterate, __num); } void __resize(std::size_t __from, std::size_t) { _M_resize += __from; } private: std::size_t _M_shift_count; mutable _Atomic_word _M_iterate; std::size_t _M_resize; float _M_list_cost; float _M_vector_cost; std::size_t _M_max_size; }; class __list2vector_stack_info : public __list2vector_info { public: __list2vector_stack_info(const __list2vector_info& __o) : __list2vector_info(__o) {} }; class __trace_list_to_vector : public __trace_base<__list2vector_info, __list2vector_stack_info> { public: __trace_list_to_vector() : __trace_base<__list2vector_info, __list2vector_stack_info>() { __id = "list-to-vector"; } ~__trace_list_to_vector() { } // Call at destruction/clean to set container final size. void __destruct(__list2vector_info* __obj_info) { float __vc = __vector_cost(__obj_info->__shift_count(), __obj_info->__iterate()); float __lc = __list_cost(__obj_info->__shift_count(), __obj_info->__iterate()); __obj_info->__set_vector_cost(__vc); __obj_info->__set_list_cost(__lc); __retire_object(__obj_info); } // Collect cost of operations. float __vector_cost(std::size_t __shift, std::size_t __iterate) { // The resulting vector will use a 'reserve' method. return (__shift * _GLIBCXX_PROFILE_DATA(__vector_shift_cost_factor).__value + __iterate * _GLIBCXX_PROFILE_DATA(__vector_iterate_cost_factor).__value); } float __list_cost(std::size_t __shift, std::size_t __iterate) { return (__shift * _GLIBCXX_PROFILE_DATA(__list_shift_cost_factor).__value + __iterate * _GLIBCXX_PROFILE_DATA(__list_iterate_cost_factor).__value); } }; inline void __trace_list_to_vector_init() { _GLIBCXX_PROFILE_DATA(_S_list_to_vector) = new __trace_list_to_vector(); } inline void __trace_list_to_vector_free() { delete _GLIBCXX_PROFILE_DATA(_S_list_to_vector); } inline void __trace_list_to_vector_report(FILE* __f, __warning_vector_t& __warnings) { __trace_report(_GLIBCXX_PROFILE_DATA(_S_list_to_vector), __f, __warnings); } inline __list2vector_info* __trace_list_to_vector_construct() { if (!__profcxx_init()) return 0; if (!__reentrance_guard::__get_in()) return 0; __reentrance_guard __get_out; return _GLIBCXX_PROFILE_DATA(_S_list_to_vector) ->__add_object(__get_stack()); } inline void __trace_list_to_vector_insert(__list2vector_info* __obj_info, std::size_t __shift, std::size_t __size) { if (!__obj_info) return; __obj_info->__opr_insert(__shift, __size); } inline void __trace_list_to_vector_iterate(__list2vector_info* __obj_info, int) { if (!__obj_info) return; // We only collect if an iteration took place no matter in what side. __obj_info->__opr_iterate(1); } inline void __trace_list_to_vector_invalid_operator(__list2vector_info* __obj_info) { if (!__obj_info) return; __obj_info->__set_invalid(); } inline void __trace_list_to_vector_resize(__list2vector_info* __obj_info, std::size_t __from, std::size_t __to) { if (!__obj_info) return; __obj_info->__resize(__from, __to); } inline void __trace_list_to_vector_destruct(__list2vector_info* __obj_info) { if (!__obj_info) return; _GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__destruct(__obj_info); } } // namespace __gnu_profile #endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H__ */ Back

Edit File : profiler_list_to_vector.h | Size : 6.68 KB

// -*- C++ -*-
//
// Copyright (C) 2009-2018 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

/** @file profile/impl/profiler_list_to_vector.h
 *  @brief diagnostics for list to vector.
 */

// Written by Changhee Jung.

#ifndef _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H
#define _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H 1

#include <sstream>

#include "profile/impl/profiler.h"
#include "profile/impl/profiler_node.h"
#include "profile/impl/profiler_trace.h"

namespace __gnu_profile
{
  /** @brief A list-to-vector instrumentation line in the object table.  */
  class __list2vector_info
  : public __object_info_base
  {
  public:
    __list2vector_info(__stack_t __stack)
    : __object_info_base(__stack), _M_shift_count(0), _M_iterate(0),
      _M_resize(0), _M_list_cost(0), _M_vector_cost(0),
      _M_max_size(0) { }

void
    __merge(const __list2vector_info& __o)
    {
      __object_info_base::__merge(__o);
      _M_shift_count  += __o._M_shift_count;
      _M_iterate      += __o._M_iterate;
      _M_vector_cost  += __o._M_vector_cost;
      _M_list_cost    += __o._M_list_cost;
      _M_resize       += __o._M_resize;
      _M_max_size     = std::max( _M_max_size, __o._M_max_size);
    }

void
    __write(FILE* __f) const
    {
      std::fprintf(__f, "%Zu %Zu %Zu %.0f %.0f\n", _M_shift_count,
		   _M_resize, _M_iterate, _M_vector_cost, _M_list_cost);
    }

float
    __magnitude() const
    { return _M_list_cost - _M_vector_cost; }
  
    std::string
    __advice() const
    {
      std::stringstream __sstream;
      __sstream 
	<< "change std::list to std::vector and its initial size from 0 to "
	<< _M_max_size;
      return __sstream.str();
    }

std::size_t
    __shift_count()
    { return _M_shift_count; }
  
    std::size_t
    __iterate()
    { return _M_iterate; }
  
    float
    __list_cost()
    { return _M_list_cost; }
  
    std::size_t
    __resize()
    { return _M_resize; }
  
    void
    __set_list_cost(float __lc)
    { _M_list_cost = __lc; }
    
    void
    __set_vector_cost(float __vc)
    { _M_vector_cost = __vc; }
    
    void
    __opr_insert(std::size_t __shift, std::size_t __size)
    {
      _M_shift_count += __shift;
      _M_max_size = std::max(_M_max_size, __size);
    }

void
    __opr_iterate(int __num)
    { __gnu_cxx::__atomic_add(&_M_iterate, __num); }

void
    __resize(std::size_t __from, std::size_t)
    { _M_resize += __from; }

private:
    std::size_t _M_shift_count;
    mutable _Atomic_word _M_iterate;
    std::size_t _M_resize;
    float _M_list_cost;
    float _M_vector_cost;
    std::size_t _M_max_size;
  };

class __list2vector_stack_info 
  : public __list2vector_info
  {
  public:
    __list2vector_stack_info(const __list2vector_info& __o) 
    : __list2vector_info(__o) {}
  };

class __trace_list_to_vector
  : public __trace_base<__list2vector_info, __list2vector_stack_info> 
  {
  public:
    __trace_list_to_vector()
    : __trace_base<__list2vector_info, __list2vector_stack_info>()
    { __id = "list-to-vector"; }

~__trace_list_to_vector() { }

// Call at destruction/clean to set container final size.
    void
    __destruct(__list2vector_info* __obj_info)
    {
      float __vc = __vector_cost(__obj_info->__shift_count(),
				 __obj_info->__iterate());
      float __lc = __list_cost(__obj_info->__shift_count(),
			       __obj_info->__iterate());
      __obj_info->__set_vector_cost(__vc);
      __obj_info->__set_list_cost(__lc);
      __retire_object(__obj_info);
    }

// Collect cost of operations.
    float
    __vector_cost(std::size_t __shift, std::size_t __iterate)
    {
      // The resulting vector will use a 'reserve' method.
      return (__shift
	      * _GLIBCXX_PROFILE_DATA(__vector_shift_cost_factor).__value
	      + __iterate
	      * _GLIBCXX_PROFILE_DATA(__vector_iterate_cost_factor).__value); 
    }

float
    __list_cost(std::size_t __shift, std::size_t __iterate)
    {
      return (__shift
	      * _GLIBCXX_PROFILE_DATA(__list_shift_cost_factor).__value
	      + __iterate
	      * _GLIBCXX_PROFILE_DATA(__list_iterate_cost_factor).__value); 
    }
  };

inline void
  __trace_list_to_vector_init()
  { _GLIBCXX_PROFILE_DATA(_S_list_to_vector) = new __trace_list_to_vector(); }

inline void
  __trace_list_to_vector_free()
  { delete _GLIBCXX_PROFILE_DATA(_S_list_to_vector); }

inline void
  __trace_list_to_vector_report(FILE* __f, __warning_vector_t& __warnings)
  { __trace_report(_GLIBCXX_PROFILE_DATA(_S_list_to_vector), __f, __warnings); }

inline __list2vector_info*
  __trace_list_to_vector_construct()
  {
    if (!__profcxx_init())
      return 0;

if (!__reentrance_guard::__get_in())
      return 0;

__reentrance_guard __get_out;
    return _GLIBCXX_PROFILE_DATA(_S_list_to_vector)
      ->__add_object(__get_stack());
  }

inline void
  __trace_list_to_vector_insert(__list2vector_info* __obj_info,
				std::size_t __shift, std::size_t __size)
  {
    if (!__obj_info)
      return;

__obj_info->__opr_insert(__shift, __size);
  }

inline void
  __trace_list_to_vector_iterate(__list2vector_info* __obj_info,
				 int)
  {
    if (!__obj_info)
      return;

// We only collect if an iteration took place no matter in what side.
    __obj_info->__opr_iterate(1);
  }

inline void
  __trace_list_to_vector_invalid_operator(__list2vector_info* __obj_info)
  {
    if (!__obj_info)
      return;

__obj_info->__set_invalid();
  }

inline void
  __trace_list_to_vector_resize(__list2vector_info* __obj_info, 
				std::size_t __from, std::size_t __to)
  {
    if (!__obj_info)
      return;

__obj_info->__resize(__from, __to);
  }

inline void
  __trace_list_to_vector_destruct(__list2vector_info* __obj_info)
  {
    if (!__obj_info)
      return;

_GLIBCXX_PROFILE_DATA(_S_list_to_vector)->__destruct(__obj_info);
  }

} // namespace __gnu_profile
#endif /* _GLIBCXX_PROFILE_PROFILER_LIST_TO_VECTOR_H__ */

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