如何以编程方式获得CPU缓存页大小在C + +？
问题描述：
我希望我的程序读取它在C ++中运行的CPU的缓存行大小。
I'd like my program to read the cache line size of the CPU it's running on in C++.
我知道这不能移植，所以我需要一个解决方案为Linux和另一个为Windows（其他系统的解决方案可能对其他人有用，所以如果你知道他们发布他们）。
I know that this can't be done portably, so I will need a solution for Linux and another for Windows (Solutions for other systems could be usefull to others, so post them if you know them).
对于Linux我可以读取/ proc / cpuinfo的内容，并解析用cache_alignment开头的行。也许有一个更好的方法涉及调用API。
For Linux I could read the content of /proc/cpuinfo and parse the line begining with cache_alignment. Maybe there is a better way involving a call to an API.
对于Windows我根本不知道。
For Windows I simply have no idea.
答
在Windows上
#include <Windows.h>
#include <iostream>
using std::cout; using std::endl;
int main()
{
SYSTEM_INFO systemInfo;
GetSystemInfo(&systemInfo);
cout << "Page Size Is: " << systemInfo.dwPageSize;
getchar();
}
在Linux上