如何获取自Linux机器上次引导以来已创建的进程数

Question

How do I get the no of processes that have been created since the last boot on a Linux machine.

I want to use it in a C++ program so I prefer just knowing which proc file has it

Answer 1

If you want to know the number of forks there is /proc/stat :

 processes XXXX Number of forks since boot. 

Answer 2

自上次启动以来的叉数：

vmstat -f

Answer 3

Looking at processes inside /proc/stat will show you the number of processes created which may include the processes created using fork() as well as clone() . To get the number of procceses forked since bootup you will have to run

vmstat -f