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btop, backports, and swappiness

2023-01-02 teabag.ninja

A couple of things I tend to add to a Debian 11 VPS.

Install btop

/img/btop1.jpg

It is like htop (or top), just prettier. So why not. To get it, we have to add the backports repository.

Edit /etc/apt/sources.list as root and add these lines to the bottom:

#bullseye-backports
deb http://deb.debian.org/debian bullseye-backports main 

then run

apt update && apt upgrade -y

Then to run btop, you just run the command: btop. It can be run as a user.

Simple.

Swappiness

I did note that Swap on my VPS filled and stayed filled - I don't like that as my Akkoma install would lag when that happened. I would rather it emptied as needed and it used memory to a more full capacity first (especially on the smaller VPS).

to check current swappiness, run:

cat /proc/sys/vm/swappiness

which will output something like 60. Higher numbers mean it will favour swap more.

I want to have near the minimum so it doesn't fill and sit there, so will set it to 1.

To achieve this we need to edit /etc/sysctl.conf and add to the bottom

vm.swappiness = 1

Then run the following to have it apply:

sysctl -p

And that is it.

The Teabag Ninja