disabling of workqueue to improve ssd performance

[iaacornus]

• determine if the user is running on ssd
• check if the ssd is encrypted
• determine the encrypted volume
• set --perf-no_read_workqueue --perf-no_write_workqueue --persistent to the encrypted volume

this assumes that the device is partitioned with the default fedora partition:

/dev/DEVICE/
├─/dev/DEVICEp1
├─/dev/DEVICEp2
└─/dev/DEVICEp3
  └─/dev/mapper/luks-UID

[iaacornus]

for the disabling of workqueue implemented by cloudflare refer to arch wiki documentation about the topic and official write up of cloudflare.

the workqueue is also about to be disabled in official kinoite/silverblue 38 image as proposed in this discussion fedora-silverblue/issue-tracker#388, which can be tracked here https://bugzilla.redhat.com/show_bug.cgi?id=2154817

it is also disabled by default in zen kernel zen-kernel/zen-kernel@328976f

[boredsquirrel]

so should this be closed?

[iaacornus]

so should this be closed?

the fedora devs still does not clarify when or if this would be implemented, so i think we can handle this for setup while they arent doing anything about it yet

[francoism90]

Any update on this? It doesn't seem to be landed on Fedora 38?

[boredsquirrel]

Reddit guide

Fedora discussion

[boredsquirrel]

lsblk -d -o name,rota | grep -E '^nvme|^sd' | awk '{print $1}' | head -n 1 && printf 'discard,no-read-workqueue,no-write-workqueue' | sudo tee -a /etc/crypttab && notify-send -a "optimizer" "Encrypted SSD performance optimized"

That should be it. I will propose the chance to the ublue project to be implemented in its setup scripts (It lands in the /skel.d/.config/autostart/ directory)

Chatgpt is a damn bless.

[boredsquirrel]

Here is a guide any way to automate this is important.