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Old 07-23-2020, 10:38 PM   #1
Soli Deo Gloria
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Default Linux Kernel - Applying RT Patch

I installed Xubuntu from scratch and managed to do all the necessary tweaks to show almost all of Realtimeconfigquickscan items as "good" (and the recipes will go straight to my newbie's summary thread, of course). The missing setup is the RT Preemption in the Linx Kernel. I have Linux 5.4.0-42-lowlatency installed. Could anybody share a reasonably straightforward way to set the lowlatency kernel as RT?



Thanks in advance!
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Old 07-24-2020, 02:39 AM   #2
Tobbe
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Quote:
Originally Posted by Soli Deo Gloria View Post
I installed Xubuntu from scratch and managed to do all the necessary tweaks to show almost all of Realtimeconfigquickscan items as "good" (and the recipes will go straight to my newbie's summary thread, of course). The missing setup is the RT Preemption in the Linx Kernel. I have Linux 5.4.0-42-lowlatency installed. Could anybody share a reasonably straightforward way to set the lowlatency kernel as RT?



Thanks in advance!
Isn't that the line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash threadirqs" in /etc/default/grub

Add it and run: sudo update-grub (reboot)

My GRUB looks like this:
Code:
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash threadirqs"
GRUB_CMDLINE_LINUX=""
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Old 07-24-2020, 03:27 PM   #3
Soli Deo Gloria
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That! Thanks so much!



I added also the threadirqs flag in :

GRUB_CMDLINE_LINUX="threadirqs"

I did it on Ubuntu Studio but I was being able to remember the
exact procedure.

Thanks again, another one for my list of recipes!
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