[ale] Linux kernel

[Jon "maddog" Hall]

The other thing that surprised me was the passage that said "Comments just
slow down the compilation".

Paaaaleese!  Even the heaviest commented source code on a compiled program
would be a breeze for the compiler to handle.  This excuse is fake news.

On Wed, Nov 15, 2023, 19:14 Ed Cashin via Ale <ale at ale.org> wrote:

> It's funny that the code is pretty conventional and should be clear to
> people who read kernel sources a lot, but *the comments* were wrong.  And
> people in the Reddit discussion are speculating that Linux should have 30%
> comments like NVIDIA does.
>
> But I'm not sure this is such a big deal---If you ignore the comments, the
> code is just saying, "Let tasks stay on the CPU longer if there are more
> CPUs, but only increase the time slice up to eight CPUs."  If you let it
> keep scaling, you'd have terrible latency on massively parallel machines.
> If you had all your cores working hard on math, you'd try to launch a
> process or interact with something and get a huge pause.
>
> The scaling appears just based on a speculation that if you have multiple
> CPUs, there might be a free one to help mitigate the increased latency.  So
> it seems good that they wouldn't get carried away.  Maybe someone will just
> try it and see.
>
>
> On Wed, Nov 15, 2023 at 9:12 AM Boris Borisov via Ale <ale at ale.org> wrote:
>
>> Read somewhere today that linux kernel has been accidentally locked to 8
>> cores.
>>
>> Anyone to collaborate.
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>
> --
>   Ed Cashin <ecashin at noserose.net>
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