running time of a software
Can someone explain what is the difference between measure running time of a software by:
kernel , user , real
I want to compare 5 softwares in their running time.
My problem is that i am sharing server with many users, and many softwares are executed in the same server.So the time is always changing even when i am using the same software.
Is there any solution for this, or do i have to wait when no-other procs on the server?