LIBPFM(3)

💖 LIBPFM 💖

ok so bestie, this is a page from the Linux Programmer's Manual, and it's literally all about libpfm — more specifically the chunk of it that handles the AMD64 Zen6 Family 1Ah L3 PMU. that's the performance monitoring unit, iykyk. it's giving very niche, very iconic, very "if you know you know" energy. 🎀

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✨ NAME ✨

libpfm_amd64_fam1ah_zen6_l3 — support for AMD64 Zen6 Family 1Ah L3 PMU

like. that's the whole vibe. it's the support module. it supports a thing. slay. 💅

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✨ SYNOPSIS ✨

ok so first things first, you gotta pull in the header, no cap:

#include <perfmon/pfmlib.h>

and then here's the deets on the PMU itself:

PMU name: amd64_fam1ah_zen6_l3
PMU desc: AMD64 Fam1Ah Zen6 L3

that's your PMU name and your PMU desc. those are the two lines. don't lose them. 🫶

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✨ DESCRIPTION ✨

so the library — the libpfm one, main character energy — supports the AMD Family 1Ah processors Zen6 L3 PMU.

and the way that it does that is in both 32-bit mode and 64-bit mode. both. not one. both. equal opportunity bit-widths fr fr. 😌

also, important, listen up bestie:

At this point, there is no modifier supported.

like, zero modifiers. none. not a single one. it's giving minimalism, it's giving "we didn't add that yet", it's giving periodt. don't go looking for modifiers, they're not there, they never were, go drink some water. 💧

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✨ AUTHORS ✨

these are the people who made it happen, absolute legends, put some respect on their names:

• Swarup Sahoo</>
• Nitika Achra</>

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🌈 SEE ALSO 🌈

hmm. bestie. there is genuinely nothing in SEE ALSO on this one. the page just... doesn't have one. so like, go read your other libpfm pages ig, you know the ones. 🦋

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ok that's the whole page!! you made it!! 🎉

this was the LIBPFM(3) manual page, straight out of the Linux Programmer's Manual, dated May, 2026 — yes bestie that is genuinely the date on it, no i don't make the rules. anyway mush, go profile something, and remember: no modifiers. none. bye!! 💖✨🎀🫶

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