Re: [PATCH 00/23] kbuild: significantly speed up kernel builds

[Nick Desaulniers]

On Tue, Sep 8, 2026 at 1:55 PM Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx> wrote:
>
> A typical kernel build consists of a frustratingly large amount of time
> spent stuck in single-threaded bottlenecks.
>
> It turns out that there's a lot we can do about this and doing so
> significantly impacts kernel build times.


> Fundamentally the series improves build times by parallelising
> single-threaded tasks as much as possible and improving the efficiency of
> code used in the build process.

Cool!  I have not reviewed this patch series, but am supportive of
solving the problem, since I do recall this being an issue;

i.e. it always annoyed me that despite have a 128 core machine, much
of the build is sequential!  Having all those cores and not saturating
them during a build was always something I noticed (usually have
system monitor always showing system load, always) but never had time
to look into.

It would be cool if your LLM could generate any visualizations of
what's going on during a build? Seeing what's serial vs parallelized
in perhaps useful. Particularly when you can compare the before vs
after.
-- 
Thanks,
~Nick Desaulniers