psitop's Introduction

psitop

Allows you to see resource contention for CPU, IO and memory separately, with high-resolution 10 second load averages.

Running psitop

First, note that psitop needs to read /proc/pressure, which requires Linux kernel version 4.20 or higher. Your distribution might disable /proc/pressure by default - if so, you'll need to enable it before using this tool.

Go

go install github.com/jamespwilliams/psitop@latest
psitop

Nix

If you have Nix installed and flakes enabled:

nix run github:jamespwilliams/psitop

Docker

docker run -it jamespwilliams/psitop:latest

Arch Linux

psitop is in the AUR: https://aur.archlinux.org/packages/psitop.

Usage

Use the keybindings shown in the interface.

Consider trying out a tool like stress while running psitop to see how psitop displays resource contention.

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psitop's Issues

Invalid install command

$ go install https://github.com/jamespwilliams/psitop@latest
go: https://github.com/jamespwilliams/psitop@latest: argument must be a clean package path
$ go version
go version go1.20.5 linux/amd64

Remove https:// from command to install.

failed to parse 'some'

2023/07/24 13:29:58 failed to read cpu pressure: failed to parse 'some' /proc/pressure line "": failed to parse /proc/pressure line "": field "" didn't conform to expected key=value format

$ cat /proc/pressure/cpu 
some avg10=0.10 avg60=0.21 avg300=0.25 total=73759571709

$ uname -a
Linux debian 5.10.0-21-amd64 #1 SMP Debian 5.10.162-1 (2023-01-21) x86_64 GNU/Linux