如何在C++中实现Windows下的内存使用

一个好的起点是 GetProcessMemoryInfo ,它报告有关指定进程的各种内存信息。你可以通过 GetCurrentProcess()

可能是 WorkingSetSize PROCESS_MEMORY_COUNTERS

我想这就是你想要的:

#include<windows.h>
#include<stdio.h>   
#include<tchar.h>

// Use to convert bytes to MB
#define DIV 1048576

// Use to convert bytes to MB
//#define DIV 1024

// Specify the width of the field in which to print the numbers. 
// The asterisk in the format specifier "%*I64d" takes an integer 
// argument and uses it to pad and right justify the number.

#define WIDTH 7

void _tmain()
{
  MEMORYSTATUSEX statex;

  statex.dwLength = sizeof (statex);

  GlobalMemoryStatusEx (&statex);


  _tprintf (TEXT("There is  %*ld percent of memory in use.\n"),WIDTH, statex.dwMemoryLoad);
  _tprintf (TEXT("There are %*I64d total Mbytes of physical memory.\n"),WIDTH,statex.ullTotalPhys/DIV);
  _tprintf (TEXT("There are %*I64d free Mbytes of physical memory.\n"),WIDTH, statex.ullAvailPhys/DIV);
  _tprintf (TEXT("There are %*I64d total Mbytes of paging file.\n"),WIDTH, statex.ullTotalPageFile/DIV);
  _tprintf (TEXT("There are %*I64d free Mbytes of paging file.\n"),WIDTH, statex.ullAvailPageFile/DIV);
  _tprintf (TEXT("There are %*I64d total Mbytes of virtual memory.\n"),WIDTH, statex.ullTotalVirtual/DIV);
  _tprintf (TEXT("There are %*I64d free Mbytes of virtual memory.\n"),WIDTH, statex.ullAvailVirtual/DIV);
  _tprintf (TEXT("There are %*I64d free Mbytes of extended memory.\n"),WIDTH, statex.ullAvailExtendedVirtual/DIV);


}

GetProcessMemoryInfo是您正在寻找的函数。MSDN上的文档将为您指明正确的方向。从传入的进程\内存\计数器结构中获取所需信息。

你需要包括psapi.h。

GetProcessMemoryInfo . 我没用过,但看起来像是你需要的。

GlobalMemoryStatusEx 为您提供正确的计数器,以导出调用进程的虚拟内存使用情况:只需减法 ullAvailVirtual 从…起 ullTotalVirtual

系统调用 GlobalMemoryStatusEx 不幸的是,它的用途是混合的:它同时提供系统范围和进程特定的信息,例如虚拟内存信息。