native_calibrate_tsc(9)

📦 version 7.3.1, in nixpkgs unstable

💅 native_calibrate_tsc(9) — from the Kernel API Manual, bestie

okay so picture this: we're deep in the kernel, section 9 of the Kernel API Manual, and the function on the syllabus today is native_calibrate_tsc. it's giving "short name, big job" energy, and honestly? iconic. 🎀

✨ NAME ✨

native_calibrate_tsc — determine TSC frequency. 💫

like, literally that's the whole mission: determine TSC frequency via CPUID, and if CPUID can't come through for you, return 0. that's it. no cap, that's the entire personality. 🙈

🌸 SYNOPSIS 🌸

unsigned long native_calibrate_tsc (void );

she takes nothing, she returns an unsigned long. main character energy fr fr. 💅

🦋 ARGUMENTS 🦋

  • void — no arguments. zero. zilch. nada. she walks in, does her thing, and does NOT want your input, bestie. 🫶

🧚 SEE ALSO 🧚

the kernel file where all this lives is ./arch/x86/kernel/tsc.c — that's the address, go say hi 👑

and the whole friend group:

they're all in the same friend group chat, iykyk. 🌈

lowkey reminder: if CPUID doesn't have the answer, this function is NOT going to guess for you — you get a 0 and you deal with it. 💀 that's the vibe check.

and that's the whole page, bestie ✨ — brought to you by the directory ./arch/x86/kernel, stamped October 2026, and officially filed under native_calibrate_tsc(9). periodt. 💖🌷🦋

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