如何在Windows / Linux C上检查CPU名称，型号，速度？ [英] How to check CPU name, model, speed on Windows/Linux C?

问题描述

我想获得有关C的一些有关硬件的信息：

I would like to get some infos with C about hardware:

1. 我有多少CPU


2. 每个内核有多少个内核


3. 每个CPU中每个逻辑有多少逻辑内核


4. CPU名称+型号


5. CPU速度+频率


6. CPU体系结构（x86，x64）

1. how many CPU's I have
2. how many cores have each of them
3. how many logical cores have every core in every CPU
4. CPU name + model
5. CPU speed + frequency
6. CPU architecture (x86, x64)

我知道在类似Linux的操作系统上，我可以解析 / proc / cpuinfo ，但是由于它不是普通文件，因此我认为它是不安全的。看到此答案，但它没有给我我需要的每条信息。我应该叫 cat / proc / cpuinfo>吗？ file.txt ，然后解析 file.txt ？我知道 cpuid.h （我使用GCC），但找不到有关此标头的任何文档（无论如何-使用它是一个好主意吗？）

I know that on Linux-like OS I can parse /proc/cpuinfo but since its not an ordinary file, I think its unsafe. Saw this answer on SO but it doesnt give me EVERY info I need. Should I call cat /proc/cpuinfo > file.txt and then parse file.txt? I know about cpuid.h (Im using GCC) but ca't find any doc about this header (anyway - is it a good idea to use it?)

推荐答案

Linux procfs的伪造文件可能会出现很大问题。内核错误地将它们报告为常规文件，但它们的行为不符合常规POSIX系统上所需的常规文件。例如，请参见 http://www.openwall.com/lists/ musl / 2013/05/05/9 。我怀疑您听说过类似的报道，而这正是您担心的地方。

Linux procfs's fake files can behave very problematically. The kernel falsely reports them as regular files, but they don't behave as regular files are required to on a conforming POSIX system. For an example, see http://www.openwall.com/lists/musl/2013/05/05/9. I suspect you've heard similar reports and this is where your concern is coming from.

据我所知，所有的不良行为 / proc 中的假常规文件仅与写入有关。为了阅读它们，它们的行为应与实际的常规文件足够相似，您可以按自己喜欢的方式阅读它们，而不必担心。

With that said, as far as I know, all of the bad behavior of the fake "regular files" in /proc pertains only to writing. For reading they should behave sufficiently similar to actual regular files that you can just read them however you like and not worry about it.

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