LIBPFM(3)

📦 version 4.13.0+git106-g3e4031b, in debian trixie, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 LIBPFM(3) — the Linux Programmer's Manual, bestie edition 💖

okay so bestie, you're looking at the LIBPFM(3) page and honestly? iconic. this one is all about libpfm_arm_monaka, which is the support layer for the Fujitsu FUJITSU-MONAKA PMU. no cap.

✨ NAME ✨

libpfm_arm_monaka — support for Fujitsu FUJITSU-MONAKA PMU

like, that's the whole vibe. it's the thing that lets you talk to that specific PMU. periodt. 🫶

🌸 SYNOPSIS 🌸

#include <perfmon/pfmlib.h>

PMU name: arm_monaka

PMU desc: Fujitsu FUJITSU-MONAKA

so you drop that include in and you're already halfway there, slay. 💅

🦋 DESCRIPTION 🦋

The library supports the Fujitsu FUJITSU-MONAKA core PMU. that's the main character right there. 👑

This PMU supports 8 counters and privilege levels filtering. eight. counters. count them. 🔥

It can operate in 64 bit mode only. so like, don't come at it with 32-bit energy, it's not gonna happen, fr fr.

🎀 MODIFIERS 🎀

The following modifiers are supported on Fujitsu FUJITSU-MONAKA:

  • u — Measure at the user level. This corresponds to PFM_PLM3. This is a boolean modifier. so it's just a yes/no situation, on or off, no in-between. ✨
  • k — Measure at the kernel level. This corresponds to PFM_PLM0. This is a boolean modifier. also just vibes in boolean form. 💜
  • hv — Measure at the hypervisor level. This corresponds to PFM_PLMH. This is a boolean modifier. yes bestie, hypervisor too, we're covering everyone. 🌈

💖 AUTHORS 💖

Stephane Eranian <eranian@gmail.com>

giving credit where credit is due, as we should. 🫶

okay that's the whole page!! October, 2024, from the LIBPFM(3) corner of the Linux Programmer's Manual — go forth and profile something, bestie 💅✨🎀

📦 where this page comes from