143 lines
4.7 KiB
Groff
143 lines
4.7 KiB
Groff
.TH TMON 8
|
|
.SH NAME
|
|
\fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
|
|
|
|
.SH SYNOPSIS
|
|
.ft B
|
|
.B tmon
|
|
.RB [ Options ]
|
|
.br
|
|
.SH DESCRIPTION
|
|
\fBtmon \fP can be used to visualize thermal relationship and
|
|
real-time thermal data; tune
|
|
and test cooling devices and sensors; collect thermal data for offline
|
|
analysis and plot. \fBtmon\fP must be run as root in order to control device
|
|
states via sysfs.
|
|
.PP
|
|
\fBFunctions\fP
|
|
.PP
|
|
.nf
|
|
1. Thermal relationships:
|
|
- show thermal zone information
|
|
- show cooling device information
|
|
- show trip point binding within each thermal zone
|
|
- show trip point and cooling device instance bindings
|
|
.PP
|
|
2. Real time data display
|
|
- show temperature of all thermal zones w.r.t. its trip points and types
|
|
- show states of all cooling devices
|
|
.PP
|
|
3. Thermal relationship learning and device tuning
|
|
- with a built-in Proportional Integral Derivative (\fBPID\fP)
|
|
controller, user can pair a cooling device to a thermal sensor for
|
|
testing the effectiveness and learn about the thermal distance between the two
|
|
- allow manual control of cooling device states and target temperature
|
|
.PP
|
|
4. Data logging in /var/tmp/tmon.log
|
|
- contains thermal configuration data, i.e. cooling device, thermal
|
|
zones, and trip points. Can be used for data collection in remote
|
|
debugging.
|
|
- log real-time thermal data into space separated format that can be
|
|
directly consumed by plotting tools such as Rscript.
|
|
|
|
.SS Options
|
|
.PP
|
|
The \fB-c --control\fP option sets a cooling device type to control temperature
|
|
of a thermal zone
|
|
.PP
|
|
The \fB-d --daemon\fP option runs \fBtmon \fP as daemon without user interface
|
|
.PP
|
|
The \fB-g --debug\fP option allow debug messages to be stored in syslog
|
|
.PP
|
|
The \fB-h --help\fP option shows help message
|
|
.PP
|
|
The \fB-l --log\fP option write data to /var/tmp/tmon.log
|
|
.PP
|
|
The \fB-t --time-interval\fP option sets the polling interval in seconds
|
|
.PP
|
|
The \fB-v --version\fP option shows the version of \fBtmon \fP
|
|
.PP
|
|
The \fB-z --zone\fP option sets the target therma zone instance to be controlled
|
|
.PP
|
|
|
|
.SH FIELD DESCRIPTIONS
|
|
.nf
|
|
.PP
|
|
\fBP \fP passive cooling trip point type
|
|
\fBA \fP active cooling trip point type (fan)
|
|
\fBC \fP critical trip point type
|
|
\fBA \fP hot trip point type
|
|
\fBkp \fP proportional gain of \fBPID\fP controller
|
|
\fBki \fP integral gain of \fBPID\fP controller
|
|
\fBkd \fP derivative gain of \fBPID\fP controller
|
|
|
|
.SH REQUIREMENT
|
|
Build depends on ncurses
|
|
.PP
|
|
Runtime depends on window size large enough to show the number of
|
|
devices found on the system.
|
|
|
|
.PP
|
|
|
|
.SH INTERACTIVE COMMANDS
|
|
.pp
|
|
.nf
|
|
\fBCtrl-C, q/Q\fP stops \fBtmon\fP
|
|
\fBTAB\fP shows tuning pop up panel, choose a letter to modify
|
|
|
|
.SH EXAMPLES
|
|
Without any parameters, tmon is in monitoring only mode and refresh
|
|
screen every 1 second.
|
|
.PP
|
|
1. For monitoring only:
|
|
.nf
|
|
$ sudo ./tmon
|
|
|
|
2. Use Processor cooling device to control thermal zone 0 at default 65C.
|
|
$ sudo ./tmon -c Processor -z 0
|
|
|
|
3. Use intel_powerclamp(idle injection) cooling device to control thermal zone 1
|
|
$ sudo ./tmon -c intel_powerclamp -z 1
|
|
|
|
4. Turn on debug and collect data log at /var/tmp/tmon.log
|
|
$ sudo ./tmon -g -l
|
|
|
|
For example, the log below shows PID controller was adjusting current states
|
|
for all cooling devices with "Processor" type such that thermal zone 0
|
|
can stay below 65 dC.
|
|
|
|
#---------- THERMAL DATA LOG STARTED -----------
|
|
Samples TargetTemp acpitz0 acpitz1 Fan0 Fan1 Fan2 Fan3 Fan4 Fan5
|
|
Fan6 Fan7 Fan8 Fan9 Processor10 Processor11 Processor12 Processor13
|
|
LCD14 intel_powerclamp15 1 65.0 65 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 2
|
|
65.0 66 65 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0 3 65.0 60 54 0 0 0 0 0 0 0 0
|
|
0 0 4 4 4 4 6 0 4 65.0 53 53 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0
|
|
5 65.0 52 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
|
|
6 65.0 53 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
|
|
7 65.0 68 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
|
|
8 65.0 68 68 0 0 0 0 0 0 0 0 0 0 5 5 5 5 6 0
|
|
9 65.0 68 68 0 0 0 0 0 0 0 0 0 0 6 6 6 6 6 0
|
|
10 65.0 67 67 0 0 0 0 0 0 0 0 0 0 7 7 7 7 6 0
|
|
11 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
|
|
12 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
|
|
13 65.0 67 67 0 0 0 0 0 0 0 0 0 0 9 9 9 9 6 0
|
|
14 65.0 66 66 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
|
|
15 65.0 66 67 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
|
|
16 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
|
|
17 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
|
|
18 65.0 64 61 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
|
|
19 65.0 60 59 0 0 0 0 0 0 0 0 0 0 12 12 12 12 6 0
|
|
|
|
Data can be read directly into an array by an example R-script below:
|
|
|
|
#!/usr/bin/Rscript
|
|
tdata <- read.table("/var/tmp/tmon.log", header=T, comment.char="#")
|
|
attach(tdata)
|
|
jpeg("tmon.jpg")
|
|
X11()
|
|
g_range <- range(0, intel_powerclamp15, TargetTemp, acpitz0)
|
|
plot( Samples, intel_powerclamp15, col="blue", ylim=g_range, axes=FALSE, ann=FALSE)
|
|
par(new=TRUE)
|
|
lines(TargetTemp, type="o", pch=22, lty=2, col="red")
|
|
dev.off()
|