Re: [PATCH v3] mm: page_alloc: make defrag_mode retries follow the promoted order

[Dev Jain]

On 23/10/26 8:16 pm, Kiryl Shutsemau wrote:
> On Fri, Oct 23, 2026 at 01:12:02PM +0100, Kiryl Shutsemau wrote:
>> The diff below replaces the previous one. It needs cleanup and splitting
>> before it goes upstream.
> 
> Proper patchset:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/kas/linux.git page_alloc/nofrag-watermark-v1
> 

Thanks! I applied the 3 commits on top and the results improved a lot. Your patches
make sense to me.

But still, I see more compact_stalls and a worse compaction success:fail ratio. The
limitation must be by definition I believe: we still won't be able to use 64K blocks
from non-movable pageblocks.