Put %f and %t in your StumpWM mode-line format string (screen-mode-line-format) to show the frequency and temperature of your CPU.
In addition to the lisp code, there is a small Bourne shell script, ml_cpu.sh. Make sure this script is executable by the user running StumpWM and within the user's $PATH. Have a look at the script to customize certain settings such as the interval between updates. You may need to tweek the sysctl command so that it returns your CPU's frequency and temperature.
FAQ
Q: What do I need to put in my ~/.stumpwmrc to get this working?
A: First, make sure the source is in your load-path. To add it, use something like
(add-to-load-path "/usr/home/jrm/scm/swm-freebsd-cpu-modeline")Next, load the module with
(load-module "swm-freebsd-cpu-modeline")Finally create a mode-line format string with %f and %t in it, e.g.,
(setf *screen-mode-line-format* "^[^8*CPU: ^] %f^[^9*MHz^] %t^[^9*°C^]")Q: So, why use a separate script? Couldn't all the code be contained within the module?
A: Yes, it could. I tried doing that with and without threads. I found StumpWM became less responsive in both cases. Don't you prefer a snappy StumpWM?
Q: Will this only run on FreeBSD?
A: By default, yes, but it should be quite simple to modify ml_cpu.sh to get it working on your OS.