title: Trace Time Spent in Nanosleep Syscalls
name: sleeptime.stp
version: 1.0
author: Daniel Berrange and Will Cohen
keywords: syscall nanosleep
subsystem: syscall
status: production
exit: user-controlled
output: trace
scope: system-wide
description: The script watches each nanosleep syscall on the system. At the end of each nanosleep syscall the script prints out a line with a timestamp in microseconds, the pid, the executable name in parentheses, the "nanosleep:" key, and the duration of the sleep in microseconds.
test_check: stap -p4 sleeptime.stp
test_installcheck: stap sleeptime.stp -c "sleep 0.2"