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Old 01-10-2019, 07:26 AM   #1
monty
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Default threadirqs & update-initramfs with manjaro?

I need to add some boot stuff into the CMDLINE like:
Code:
sudo nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash threadirqs  clocksource=hpet"
afterwards w/ kubuntu or debian we do:
Code:
sudo update-initramfs -u
sudo update-grub
but how to make this changes permanent with manjaro?

I have no idea how to do that exactly without destroy something here ...
Code:
kernel:
4.19.13-1-MANJARO #1 SMP PREEMPT Sat Dec 29 15:43:56 UTC 2018 x86_64 GNU/Linux
how should the exact commands look like for this action?
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Old 01-10-2019, 07:28 AM   #2
cfillion
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Code:
sudo grub-mkconfig -o /boot/grub/grub.cfg
https://wiki.archlinux.org/index.php/Grub#Configuration
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Old 01-10-2019, 07:35 AM   #3
monty
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Quote:
Originally Posted by cfillion View Post
Code:
sudo grub-mkconfig -o /boot/grub/grub.cfg
https://wiki.archlinux.org/index.php/Grub#Configuration
thanks, that was fast!
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Old 01-10-2019, 09:20 AM   #4
monty
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because of the kernel ... there is just one question left
should I keep the default manjaro 4.19.13-1-MANJARO #1 SMP PREEMPT kernel or better choose a RT kernel?
I guess the default manjaro PREEMPT is mostly similar to the 4.19.0-14.1-liquorix-amd64 #1 ZEN SMP PREEMPT so it is already a low-latency kernel ... right?
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Old 01-10-2019, 02:47 PM   #5
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Quote:
Originally Posted by monty View Post
should I keep the default manjaro 4.19.13-1-MANJARO #1 SMP PREEMPT kernel or better choose a RT kernel?
The definite answer to this is: it depends.

I have a laptop and a desktop machine. Both are running Arch. On the laptop, although I tried all kinds of tweaks xruns only stopped after installing the rt-lts kernel. On the desktop I'm running the standard kernel and I get no xruns at all (I do have threadirqs enabled there but have done nothing else)

This experience suggests to me that a particular hardware configuration has a much bigger effect than most of the little tweaks and hacks we all seem to be so fond of ;-)
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Old 01-11-2019, 12:08 AM   #6
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This is worth reading regarding the kernel - https://linuxmusicians.com/viewtopic.php?f=27&t=19388
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