Re: [PATCH v2] mm/slub: disable slab merging in the default configuration

From: Vlastimil Babka
Date: Mon Jul 10 2023 - 10:56:18 EST


On 7/3/23 22:17, David Rientjes wrote:
> Additionally, I wouldn't consider this to be super urgent: slab cache
> merging has been this way for several years, we have some time to do an
> assessment of the implications of changing an important aspect of kernel
> memory allocation that will affect everybody.

Agreed, although I wouldn't say "affect everybody" because the changed
upstream default may not automatically translate to what distros will use,
and I'd expect most people rely on distro kernels.

> I agree with the patch if
> we can make it work, I'd just like to study the effect of it more fully
> beyond some kernbench runs.