title: Show Time Spent on Each Line if a Function
name: linetimes.stp
version: 1.0
author: William Cohen
keywords: profiling
subsystem: kernel
status: production
exit: user-controlled
output: sorted-list
scope: system-wide
description: The linetimes.stp script takes two arguments: where to find the function and the function name. linetimes.stp will instrument each line in the function. It will print out the number of times that the function is called, a table with the average and maximum time each line takes, and control flow information when the script exits.
test_check: stap -p4 linetimes.stp kernel sys_nanosleep
test_installcheck: stap linetimes.stp kernel sys_nanosleep -c "sleep 0.2"