[mdlug] Linux Kernel 6.1

[LAP]

On Fri, 23 Dec 2022 16:09:17 -0500 (EST)
Michael Corral <micorral at comcast.net> wrote:

> 
> You could already set that with the kernel boot parameter nr_cpus
> (e.g. nr_cpus=4) in GRUB for earlier kernels.
>

No.  Any distro kernel is already built to support a range of CPUs
and the routines are not optimized for a specific number.
The "nr_cpus" BOOT TIME option won't make much difference.

This option, however, forces the kernel routines, at BUILD TIME,
to optimize for a specific number of CPUs.

The desktop workstation user may find this attractive.

> 
> These days there isn't much need to compile your own kernel,
>

There never was a need for the user to compile his own kernel,
but many users still choose to do so for various reasons.

That this is possible is a strength of FOSS.

>
> most distros have things set up so that you can configure via kernel
> boot parameters in GRUB or with module options.
>

There are many, many kernel build options that cannot be
specified as boot options.

To fully explain this is not possible here. One must study
all the kernel configure options that are available -- and
there are hundreds of them.