Programatic performance stats retrieval

Programatic performance stats retrieval

Post by Ken Mats » Wed, 29 Jun 1994 09:16:27

I need to retrieve some system performance statistics programatically.  For
various reasons, I don't want to run a command in a shell and parse the output
(at least not sar).

How can I retrieve system performance statistics with some other technique?
In essence, I would like to know how sar, vmstat, etc are implemented
internally.  Do they read /dev/kmem, etc?  Do they use some magic system
calls?  Is this stuff documented anywhere?  How can I duplicate some of that
functionality and get system performance statistics into a C program?


ken matson