LIKWID-ACCESSD(1)

📦
version 5.5.1 · 5 versions
, in nixos 26.05, ubuntu stonking

💖 likwid-accessD 💖

okay bestie, welcome to the manual page for likwid-accessD from the LIKWID family of tools — General Commands Manual vibes only, and she is the little daemon-with-a-badge that makes the rest of the crew actually work. 🫶

✨ NAME ✨

likwid-accessD — this tool forwards the access operations from LIKWID PerfMon tools to the MSR and PCI device files. 💅

🌸 DESCRIPTION 🌸

So like… likwid-accessD is a command line application that opens a UNIX file socket and just waits, patiently, main character energy, for access operations to come sliding in from LIKWID tools that need to touch the MSR/PCI device files or MMIO ranges. 🦋

Here's the tea tho 🍓 — those MSR/PCI device files and MMIO ranges are only accessible to users with root privileges. Not a vibe check you can just pass, bestie, it's literally a privilege thing. So likwid-accessD needs either the suid-bit set or a suitable libcap setting to do its job. No cap. 🔥

And depending on the current system architecture, likwid-accessD permits only access to registers defined for the architecture — so she's not out here handing out access to stuff that doesn't even exist on your machine. Iconic, honestly. 👑

💜 AUTHOR 💜

Written by Thomas Gruber <thomas.roehl@googlemail.com>. 🎀

😭 BUGS 😭

Report Bugs on <https://github.com/RRZE-HPC/likwid/issues>. fr fr, if something's busted, tell the maintainers, don't just suffer in silence bestie 💀

🧚 SEE ALSO 🧚

okay so lowkey, if this page was your whole personality today, go read her friends too. slay. ✨

Version likwid-5 · dated 23.12.2025 · that's the whole page bestie, LIKWID-ACCESSD(1) out, mwah 💅💖🌈

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