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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/tools/thermal/tmon/README | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/tools/thermal/tmon/README')
-rw-r--r-- | kernel/tools/thermal/tmon/README | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/kernel/tools/thermal/tmon/README b/kernel/tools/thermal/tmon/README new file mode 100644 index 000000000..457949897 --- /dev/null +++ b/kernel/tools/thermal/tmon/README @@ -0,0 +1,50 @@ +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 |