Arch Linux

swab148

Member

Registered: 2024-06-18

Posts: 3

[Solved] Realtime in a post-6.12 world

Now that PREEMPT_RT  is merged into the main kernel, and both the linux-rt and linux-rt-lts packages appear to be dead, how do we enable realtime capabilities with the main linux kernel? Is it a bootloader config? If so, where can we find information about how to enable this option?

Last edited by swab148 (2025-04-14 18:32:24)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 12,699

Re: [Solved] Realtime in a post-6.12 world

It has to be done at build time, so you would need to rebuild the kernel package.

swab148

Member

Registered: 2024-06-18

Posts: 3

Re: [Solved] Realtime in a post-6.12 world

Ah, that's less than ideal. Hopefully the linux-rt package maintainers will update soon for those of us who can't spend a whole day compiling a new kernel just so their guitar inputs don't lag.

youhu

Member

Registered: 2025-05-28

Posts: 3

Re: [Solved] Realtime in a post-6.12 world

Unfortunately,

CONFIG_PREEMPT_LAZY=y

Which is no good.

Last edited by youhu (2025-05-28 23:47:26)

tekstryder

Member

Registered: 2013-02-14

Posts: 309

Re: [Solved] Realtime in a post-6.12 world

for those of us who can't spend a whole day compiling a new kernel

6.14.9 kernel took 3m 52s to compile here this morn.

My tea wasn't even finished steeping.

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,711

Re: [Solved] Realtime in a post-6.12 world

linux-rt is now at 6.14 so there should not be a need to build it yourself.

Closing this old thread.

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky