LINUX中的过程工作集信息 [英] Process Working Set Info in LINUX
问题描述
我想在LINUX上运行的C ++应用程序中获取给定PID的内存工作集值。在Windows中，我可以使用 GetProcessWorkingSetSize 函数获取此信息。有什么像这样的功能我可以在LINUX中调用？
I am trying to obtain the memory working set value for a given PID in my C++ application running on LINUX. In Windows I can get this info using GetProcessWorkingSetSize function. Is there anything like this function I can call in LINUX?
推荐答案
想到的唯一明智的解决方案是访问相关信息通过 / proc 文件系统。看起来很奇怪，一个进程将不得不从 / proc 中读出自己的信息，但我不知道任何其他系统调用可能使这更容易。
The only sensible solution that comes to mind is accessing the relevant information via the /proc filesystem. It seems weird that a process would have to read out its own information from /proc, though, but I don't know about any other system calls that might make this easier.
您可能最感兴趣的信息位于 / proc / [pid] / statm 包括：
The information you're probably most interested in is located in /proc/[pid]/statm, which includes :
- 总计划规模，
- 常住套餐大小，
- 共享页面
- 文字（代码）大小
- b
- 数据和堆栈大小，
- 脏页（在Linux 2.6中未使用）。
- total program size,
- resident set size,
- shared pages,
- text (code) size,
- library (unused in Linux 2.6),
- data and stack size,
- dirty pages (unused in Linux 2.6).
请记住，所有这些度量都以页数表示。
Keep in mind that all those measurements are given in the number of pages.
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