Re: [PATCH v5] mm/mempolicy: Weighted Interleave Auto-tuning

[Andrew Morton <akpm@linux-foundation.org>]

On Fri,  7 Feb 2025 21:06:04 -0800 Joshua Hahn <joshua.hahnjy@gmail.com> wrote:

> On Fri, 7 Feb 2025 18:20:09 -0800 Andrew Morton <akpm@linux-foundation.org> wrote:
> 
> > On Fri,  7 Feb 2025 12:13:35 -0800 Joshua Hahn <joshua.hahnjy@gmail.com> wrote:
> > 
> > > This patch introduces an auto-configuration mode for the interleave
> > > weights that aims to balance the two goals of setting node weights to be
> > > proportional to their bandwidths and keeping the weight values low.
> > > In order to perform the weight re-scaling, we use an internal
> > > "weightiness" value (fixed to 32) that defines interleave aggression.
> > 
> > Question please.  How does one determine whether a particular
> > configuration is working well?  To determine whether
> > manual-configuration-A is better than manual-configuration-B is better
> > than auto-configuration?
> > 
> > Leading to... how do we know that this patch makes the kernel better?
> 
> Hello Andrew,
> 
> Thank you for your interest in this patch!
> 
> To answer your 1st question: I think that users can do some
>
> ...
>

Interesting, thanks.

Have we adequately documented all these considerations for our users or
can we add some additional words in an appropriate place?