Re: [RFC PATCH 12/26] mm: page_alloc: per-migratetype free counts

[Mel Gorman]

On Tue, Apr 18, 2023 at 03:12:59PM -0400, Johannes Weiner wrote:
> Increase visibility into the defragmentation behavior by tracking and
> reporting per-migratetype free counters.
> 
> Subsequent patches will also use those counters to make more targeted
> reclaim/compaction decisions.
> 
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>

Visibility into fragmentation behaviour is information that is
almost certainly only useful to a developer and even then, there is
/proc/pagetypeinfo. At minimum, move this patch to later in the series
but I'm skeptical about its benefit.

-- 
Mel Gorman
SUSE Labs