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Edit File : profiler_container_size.h \| Size : 5.28 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_container_size.h * @brief Diagnostics for container sizes. / // Written by Lixia Liu and Silvius Rus. #ifndef _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_H #define _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_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 container size instrumentation line in the object table. / class __container_size_info : public __object_info_base { public: __container_size_info(__stack_t __stack) : __object_info_base(__stack), _M_init(0), _M_max(0), _M_min(0), _M_total(0), _M_item_min(0), _M_item_max(0), _M_item_total(0), _M_count(0), _M_resize(0), _M_cost(0) { } void __write(FILE __f) const { std::fprintf(__f, "%Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu\n", _M_init, _M_count, _M_cost, _M_resize, _M_min, _M_max, _M_total, _M_item_min, _M_item_max, _M_item_total); } float __magnitude() const { return static_cast<float>(_M_cost); } std::string __advice() const { std::stringstream __message; if (_M_init < _M_item_max) __message << "change initial container size from " << _M_init << " to " << _M_item_max; return __message.str(); } void __init(std::size_t __num) { _M_init = __num; _M_max = __num; } void __merge(const __container_size_info& __o) { __object_info_base::__merge(__o); _M_init = std::max(_M_init, __o._M_init); _M_max = std::max(_M_max, __o._M_max); _M_item_max = std::max(_M_item_max, __o._M_item_max); _M_min = std::min(_M_min, __o._M_min); _M_item_min = std::min(_M_item_min, __o._M_item_min); _M_total += __o._M_total; _M_item_total += __o._M_item_total; _M_count += __o._M_count; _M_cost += __o._M_cost; _M_resize += __o._M_resize; } // Call if a container is destructed or cleaned. void __destruct(std::size_t __num, std::size_t __inum) { _M_max = std::max(_M_max, __num); _M_item_max = std::max(_M_item_max, __inum); if (_M_min == 0) { _M_min = __num; _M_item_min = __inum; } else { _M_min = std::min(_M_min, __num); _M_item_min = std::min(_M_item_min, __inum); } _M_total += __num; _M_item_total += __inum; _M_count += 1; } // Estimate the cost of resize/rehash. float __resize_cost(std::size_t __from, std::size_t) { return __from; } // Call if container is resized. void __resize(std::size_t __from, std::size_t __to) { _M_cost += this->__resize_cost(__from, __to); _M_resize += 1; _M_max = std::max(_M_max, __to); } private: std::size_t _M_init; std::size_t _M_max; // range of # buckets std::size_t _M_min; std::size_t _M_total; std::size_t _M_item_min; // range of # items std::size_t _M_item_max; std::size_t _M_item_total; std::size_t _M_count; std::size_t _M_resize; std::size_t _M_cost; }; /** @brief A container size instrumentation line in the stack table. / class __container_size_stack_info : public __container_size_info { public: __container_size_stack_info(const __container_size_info& __o) : __container_size_info(__o) { } }; /* @brief Container size instrumentation trace producer. / class __trace_container_size : public __trace_base<__container_size_info, __container_size_stack_info> { public: ~__trace_container_size() { } __trace_container_size() : __trace_base<__container_size_info, __container_size_stack_info>() { }; // Insert a new node at construct with object, callstack and initial size. __container_size_info __insert(__stack_t __stack, std::size_t __num) { __container_size_info* __ret = __add_object(__stack); if (__ret) __ret->__init(__num); return __ret; } // Call at destruction/clean to set container final size. void __destruct(__container_size_info* __obj_info, std::size_t __num, std::size_t __inum) { __obj_info->__destruct(__num, __inum); __retire_object(__obj_info); } }; } // namespace __gnu_profile #endif /* _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_H */ Back

Edit File : profiler_container_size.h | Size : 5.28 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_container_size.h
 *  @brief Diagnostics for container sizes.
 */

// Written by Lixia Liu and Silvius Rus.

#ifndef _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_H
#define _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_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 container size instrumentation line in the object table.  */
  class __container_size_info
  : public __object_info_base 
  {
  public:
    __container_size_info(__stack_t __stack)
    : __object_info_base(__stack), _M_init(0), _M_max(0),
      _M_min(0), _M_total(0), _M_item_min(0), _M_item_max(0),
      _M_item_total(0), _M_count(0), _M_resize(0), _M_cost(0)
    { }

void
    __write(FILE* __f) const
    {
      std::fprintf(__f, "%Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu %Zu\n", 
		   _M_init, _M_count, _M_cost, _M_resize, _M_min, _M_max,
		   _M_total, _M_item_min, _M_item_max, _M_item_total);
    }

float
    __magnitude() const
    { return static_cast<float>(_M_cost); }

std::string
    __advice() const
    {
      std::stringstream __message;
      if (_M_init < _M_item_max)
	__message << "change initial container size from " << _M_init
		  << " to " << _M_item_max;
      return __message.str();
    }

void
    __init(std::size_t __num)
    {
      _M_init = __num;
      _M_max = __num;
    }

void
    __merge(const __container_size_info& __o)
    {
      __object_info_base::__merge(__o);
      _M_init        = std::max(_M_init, __o._M_init);
      _M_max         = std::max(_M_max, __o._M_max);
      _M_item_max    = std::max(_M_item_max, __o._M_item_max);
      _M_min         = std::min(_M_min, __o._M_min);
      _M_item_min    = std::min(_M_item_min, __o._M_item_min);
      _M_total      += __o._M_total;
      _M_item_total += __o._M_item_total;
      _M_count      += __o._M_count;
      _M_cost       += __o._M_cost;
      _M_resize     += __o._M_resize;
    }

// Call if a container is destructed or cleaned.
    void
    __destruct(std::size_t __num, std::size_t __inum)
    {
      _M_max = std::max(_M_max, __num);
      _M_item_max = std::max(_M_item_max, __inum);
      if (_M_min == 0)
	{
	  _M_min = __num; 
	  _M_item_min = __inum;
	}
      else
	{
	  _M_min = std::min(_M_min, __num);
	  _M_item_min = std::min(_M_item_min, __inum);
	}

_M_total += __num;
      _M_item_total += __inum;
      _M_count += 1;
    }

// Estimate the cost of resize/rehash. 
    float
    __resize_cost(std::size_t __from, std::size_t)
    { return __from; }

// Call if container is resized.
    void
    __resize(std::size_t __from, std::size_t __to)
    {
      _M_cost += this->__resize_cost(__from, __to);
      _M_resize += 1;
      _M_max = std::max(_M_max, __to);
    }

private:
    std::size_t _M_init;
    std::size_t _M_max;  // range of # buckets
    std::size_t _M_min;
    std::size_t _M_total;
    std::size_t _M_item_min;  // range of # items
    std::size_t _M_item_max;
    std::size_t _M_item_total;
    std::size_t _M_count;
    std::size_t _M_resize;
    std::size_t _M_cost;
  };

/** @brief A container size instrumentation line in the stack table.  */
  class __container_size_stack_info
  : public __container_size_info
  {
  public:
    __container_size_stack_info(const __container_size_info& __o)
    : __container_size_info(__o) { }
  };
  
  /** @brief Container size instrumentation trace producer.  */
  class __trace_container_size
  : public __trace_base<__container_size_info, __container_size_stack_info> 
  {
  public:
    ~__trace_container_size() { }

__trace_container_size()
    : __trace_base<__container_size_info, __container_size_stack_info>() { };

// Insert a new node at construct with object, callstack and initial size. 
    __container_size_info*
    __insert(__stack_t __stack, std::size_t __num)
    {
      __container_size_info* __ret =  __add_object(__stack);
      if (__ret)
	__ret->__init(__num);
      return __ret;
    }

// Call at destruction/clean to set container final size.
    void
    __destruct(__container_size_info* __obj_info,
	       std::size_t __num, std::size_t __inum)
    {
      __obj_info->__destruct(__num, __inum);
      __retire_object(__obj_info);
    }
  };

} // namespace __gnu_profile
#endif /* _GLIBCXX_PROFILE_PROFILER_CONTAINER_SIZE_H */

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