Current File : //proc/self/root/usr/share/systemtap/examples/general/cpu_throttle.meta
title: Monitor Intel processors for throttling due to power or thermal limits
name: cpu_throttle.stp
version: 1.0
author: William Cohen
keywords: prometheus limits
subsystem: process
status: experimental
exit: user-controlled
output: on-exit
scope: process
description: Intel processors have hardware mechanisms that will reduce the effective processors speed to avoid exceeding set thermal or power constraints. The cpu_throttle.stp script monitors when CPU throttling occurs and accumulates the amount of time in milliseconds that each processor is throttled. The script makes the information available via procfs in Prometheus readable format.
test_support: stap -l 'kprobe.function("therm_throt_process")'
test_check: stap -p4 cpu_throttle.stp
test_installcheck: stap cpu_throttle.stp -T 1
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