linux/tools/thermal/tmon
Jiri Olsa ad6b474f44 tools thermal tmon: Allow overriding CFLAGS assignments
So that the user can provide, e.g. distro package alternative values.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Herton Krzesinski  <herton@redhat.com>
Cc: Markus Mayer <mmayer@broadcom.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Link: http://lkml.kernel.org/r/20181212102537.25902-3-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-28 16:33:08 -03:00
..
.gitignore tools/thermal: tmon: add .gitignore 2015-02-28 13:52:47 +08:00
Makefile tools thermal tmon: Allow overriding CFLAGS assignments 2018-12-28 16:33:08 -03:00
pid.c
README
sysfs.c tools/thermal: tmon: fix for segfault 2018-03-27 09:51:23 +02:00
tmon.8 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tmon.c tools/thermal: tmon: fix for segfault 2018-03-27 09:51:23 +02:00
tmon.h
tui.c tools/thermal: tmon: silence 'set but not used' warnings 2015-02-28 13:52:48 +08:00

TMON - A Monitoring and Testing Tool for Linux kernel thermal subsystem

Why TMON?
==========
Increasingly, Linux is running on thermally constrained devices. The simple
thermal relationship between processor and fan has become past for modern
computers.

As hardware vendors cope with the thermal constraints on their products, more
and more sensors are added, new cooling capabilities are introduced. The
complexity of the thermal relationship can grow exponentially among cooling
devices, zones, sensors, and trip points. They can also change dynamically.

To expose such relationship to the userspace, Linux generic thermal layer
introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
links, trip point bindings, and device instances. To traverse such
matrix by hand is not a trivial task. Testing is also difficult in that
thermal conditions are often exception cases that hard to reach in
normal operations.

TMON is conceived as a tool to help visualize, tune, and test the
complex thermal subsystem.

Files
=====
	tmon.c : main function for set up and configurations.
	tui.c : handles ncurses based user interface
	sysfs.c : access to the generic thermal sysfs
	pid.c : a proportional-integral-derivative (PID) controller
	that can be used for thermal relationship training.

Requirements
============
Depends on ncurses

Build
=========
$ make
$ sudo ./tmon -h
Usage: tmon [OPTION...]
  -c, --control         cooling device in control
  -d, --daemon          run as daemon, no TUI
  -l, --log             log data to /var/tmp/tmon.log
  -h, --help            show this help message
  -t, --time-interval   set time interval for sampling
  -v, --version         show version
  -g, --debug           debug message in syslog

1. For monitoring only:
$ sudo ./tmon