linux-kernel - Re: [PATCH V2 2/3] mm: page_alloc: correct high atomic reserve calculations

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Message-ID: <ZVYQihO8lsI5_JJc@tiehlicka>
Date:   Thu, 16 Nov 2023 13:52:26 +0100
From:   Michal Hocko <mhocko@...e.com>
To:     Mel Gorman <mgorman@...hsingularity.net>
Cc:     Charan Teja Kalla <quic_charante@...cinc.com>,
        akpm@...ux-foundation.org, david@...hat.com, vbabka@...e.cz,
        hannes@...xchg.org, quic_pkondeti@...cinc.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 2/3] mm: page_alloc: correct high atomic reserve
 calculations

On Thu 16-11-23 09:59:01, Mel Gorman wrote:
[...]
> This patch in isolation seems fine with the caveat that such a small
> system may find the atomic reserves to be borderline useless.

Yes, exactly what I had in mind. Would it make sense to reserve the the
pageblock only if it really is less than 1% of available memory?
-- 
Michal Hocko
SUSE Labs