cd5e85f52d
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 or later as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 6 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520075211.856638608@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .gitignore | ||
| Makefile | ||
| pid.c | ||
| README | ||
| sysfs.c | ||
| tmon.8 | ||
| tmon.c | ||
| tmon.h | ||
| tui.c | ||
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
- For monitoring only: $ sudo ./tmon