Folder size linux

Question

I need to monitor folders on my linux machine periodically to check whether they are exceeding certain limits.

I have checked stat function call but running stat recursively on all sub folders and files is time consuming and I need to do this for all folders.

Does kernal maintain any datastructures which I can interpret in my program.Or is their any standard api for this.

Answer 1

If you need to enforce limits then use quotas