RT-Support : what can we expect from this?

[dhubs]

good day dear friends

well Linus Torvalds announced yesterday the Linux kernel 6.12 This is now generally available.

The new kernel version has some interesting new features to offer - and all sounds pretty exciting.
Among other things and bug fixes there are some new - lemme call them features ä- such as "real-time" capabilty.

The new kernel - it Comes with a so called real-time support:

well: what can we expect from that - what can we do now !?
What benefits do we have - and what advantages?

Question: can some of you explain how the real time work thing will work?


note: i have heard that the devs worked allmost two decades to get the Real-Time-Thing done..

so, whats the fuzz!?`

Look forward to hear from you

 

[KGIII]

Start here:

https://www.reddit.com/r/linux/comments/1fl88vk/linux_is_now_a_rtos_preempt_rt_realtime_kernel

Finish here:

Realtime kernel patchset - ArchWiki

wiki.archlinux.org

 

[Egzoset]

There's mention of QR code for DRM kernel panic, but i don't see how valuable this is to humble end users.

 

[KGIII]

I have no idea why it's saying that the page is not found.

It was found when I posted it. It's a deleted thread - but the comments and link are still valid.

When I revisited the thread, it says that the page isn't found.

If I understand it, an application/process says it can be completed in X-amount of time. If it can't complete in that amount of time, it is not run.

This is supposed to speed up your system.

 

[Condobloke]

"Your distro is not defaulting to RT kernels, it's a speciality."

That sums it up for me

 

[Aristarchus]

RT patches are available for very long time, however average user will not benefit from RT. Good example for RT usage is music sampling. However you need much more tweaking than just run RT.
Out curiosity I enabled RT in 6.12 and was greeted with blank screen. It turned out that I need to tweak kernel parameters for my video card (Intel XE). After this it worked. I suspect that there is still a lot of gotchas.

Overall it is easy to make working RT. If you benefit from it that is completely different story. Nevertheless great progress by kernel devs.

 

[KGIII]

RT patches are available for very long time,

That's probably worth mentioning. This has been an option for a couple of decades.

I do some music recording and have tinkered with it in the past. However, it's not something I need to have and not something I've used in quite a few years. Heck, I do most of my recording and editing through Audacity these days, as my needs are simple and I play well enough to not require much in the way of editing.

Also, there are hundreds of plugins for Audacity but that's another topic.

We mere desktop users aren't really doing anything mission critical nor anything all that precise. It seems there are enough people who do need this that they've decided to just add it to the kernel.

 

[dhubs]

Good morning to you

Many thanks for the reply and for the heads up. Your answers are very helpful and shed a light on the topic "real- time" and the r-t capabilities.

It's amazing to see what the kernel development has managed. A great achievement after two decades of development.

Linux - the result of a tremendous project.

BTW: thanks to you for running theses great forum. A great place for support, knowledge- and Idea exchange.

Thanks for the engagement.

Keep up the good work