cpufreq-info(1)

📦
version 008 · 2 versions
, in debian bookworm, ubuntu jammy, ubuntu noble, ubuntu resolute, ubuntu stonking

💖 cpufreq-info — the manual page, but make it cute 💖

okay so bestie, welcome to cpufreq-info(1), section 1 of the manual, the one and only ✨

🌸 NAME 🌸

cpufreq-info — the little utility that goes and retrieves your cpufreq kernel information, no cap 💅

🎀 SYNTAX 🎀

cpufreq-info [options]

that's it. that's the whole vibe. just the command and whatever options you're feeling 🫶

🦋 DESCRIPTION 🦋

it's a small tool, right? tiny. humble. but what it does is it prints out cpufreq information, and it's literally so helpful — for developers, and for interested users like you and me 💖

like it's giving "quietly carrying the whole team" energy. main character behavior, honestly. 👑

⭐ OPTIONS ⭐

here's where it gets iconic. every flag, every letter, all of it:

  • -c, --cpu <CPU> — pick the <CPU> number you want the info about. that's the one she'll investigate 🔍
  • -e, --debug — prints out debug information. for when you wanna see everything 🐛
  • -f, --freq — gets the frequency the CPU is currently running at, according to the cpufreq core 🌡️
  • -w, --hwfreq — gets the frequency the CPU is currently running at, but by reading it straight from the hardware. heads up bestie: this one's only available to root 🔐
  • -l, --hwlimits — figures out the minimum and maximum CPU frequency allowed. the whole range, the whole spectrum 🌈
  • -d, --driver — determines the cpufreq kernel driver that's being used 🚗
  • -p, --policy — gets the currently used cpufreq policy 📜
  • -g, --governors — determines which cpufreq governors are available 👑
  • -a, --related-cpus — determines which CPUs run at the same hardware frequency 👯
  • -a, --affected-cpus — determines which CPUs need to have their frequency coordinated by software 🧠
  • -s, --stats — shows cpufreq statistics, if available 📊
  • -y, --latency — determines the maximum latency on CPU frequency changes ⏱️
  • -o, --proc — prints out information like the stuff provided by the /proc/cpufreq interface back in 2.4. and early 2.6. kernels. vintage, honestly 🕰️
  • -m, --human — human-readable output for the -f, -w, -s and -y parameters. like, finally, words a person can read 🫶
  • -h, --help — prints out the help screen. the classic. the legend 📖

💀 REMARKS 💀

okay so there are rules, and you will respect them:

you can't specify more than one of the output specific options: -o -e -a -g -p -d -l -w -f -y.

one at a time, bestie. she's not a multitasker. pick a lane 💅

you also can't specify the -o option combined with the -c option.

just. don't. it's not a thing. the tool said no and we respect the tool 🙈

🍓 FILES 🍓

where the magic lives:

  • /sys/devices/system/cpu/cpu*/cpufreq/
  • /proc/cpufreq (deprecated)
  • /proc/sys/cpu/ (deprecated)
lowkey a warning: those last two are marked deprecated in the original, so don't go building your whole personality around them 🧚

🌟 AUTHORS 🌟

  • Dominik Brodowski <linux@brodo.de> — author 💜
  • Mattia Dongili <malattia@gmail.com> — first autolibtoolization 🛠️

🔥 SEE ALSO 🔥

go read those next, iykyk 📚

and that's the page, bestie 🎀 this one came from Mattia Dongili, version 0.1, and it's the cpufreq-info(1) manual — periodt. go forth and interrogate your CPU 💖✨

📦 where this page comes from