LATENCYTOP(8)

💅 LATENCYTOP — bestie edition 💅

ok so you found the latencytop page in the System Manager's Manual section 8. slay. this is the whole vibe, let's get into it 🫶

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✨ NAME ✨

latencytop — a tool for developers to visualize system latencies 💖

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🌸 SYNOPSIS 🌸

latencytop [--unknown] [processes...]

that's it, that's the whole summoning ritual ✨

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🦋 DESCRIPTION 🦋

okay so real talk, this manual page is a brief little doc for the latencytop command. short and sweet, iykyk.

latencytop is a Linux* tool made for software developers — and like, both kinds: kernel devs and userspace devs 💅. its whole mission is figuring out where in the system latency is happening and what kind of operation/action is causing that latency, so you can go change the code and dodge the absolute worst latency hiccups. no cap. 🙈

here's the thing about LatencyTOP — it's hyper-focused on the moments where applications want to run and execute useful code, but some resource is not currently available, and the kernel then blocks the process. 😭 it does this on a system level and a per process level, so you can see what's happening to the whole system, and also which process is suffering and/or causing the delays. main character energy for your scheduler fr fr 👑

🎀 walking the processes 🎀

you can walk the processes by using the cursor keys ⭐

if you press s followed by a letter, then only active processes starting with that letter are displayed and walked. cute little filter ✨

if you press s followed by 0, then that filter gets reset. back to normal, periodt.

🍓 the fsync mode 🍓

if you press f, then LatencyTop displays a list of all processes currently waiting for an fsync to finish 💀

pressing f again returns you to the normal operating mode of LatencyTop. obsessed with the toggle tbh 🔥

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🌈 SEE ALSO 🌈

• powertop(1)

and like, the program is more fully described at http://www.latencytop.org 🦋 (yes, go click it, bestie)

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💜 AUTHOR 💜

latencytop was written by Arjan van de Ven <arjan@linux.intel.com>.

this manual page was written by Giacomo Catenazzi <cate@debian.org>, for the Debian project (but may be used by others). so generous, so iconic 🫶

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and that's a wrap, bestie 🧚 this was LATENCYTOP(8) from the System Manager's Manual, dated November 9, 2008. go find your latency, girl. you got this 💖✨