title: See the amount of wall clock time a process spends in various states
name: stopwatches.stp
version: 1.0
author: William Cohen
keywords: time bpf
subsystem: process
status: experimental
exit: user-controlled
output: on-exit
scope: process
description: The stopwatch.stp script illustrates how to use multiple stopwatches record how much wallclock time a process spends in kernel- and user-space.  On exit the script prints out the time in seconds, milliseconds, microseconds, and nanoseconds. Note that this output of this script is not directly comparable to the time command because time records the time that the process is actually active in kernel- and user-space.
test_check: stap -p4 stopwatches.stp
test_installcheck: stap stopwatches.stp -T 1
test_check_bpf: stap --bpf -p4 stopwatches.stp
test_installcheck_bpf: stap --bpf stopwatches.stp -T 1
