Timing programs
The time command lets you time programs
to find out how much processor time they actually require. You might
use this to compare two versions of a program to see if one runs faster
than the other. You can run a program with:
time command-line
where command-line is a command line that invokes the program you want to time. time runs the program and displays: - The total time the program took to execute, labeled real
- The total time spent in the user program, labeled user
- The central processor time spent performing system services for the user, labeled sys
For more information, see the time command description in z/OS UNIX System Services Command Reference.