linux-kernel - Re: [PATCH v2] mm: add lazyfree folio to lru tail

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Message-ID: <ZuABX8ohRClBagqp@tiehlicka>
Date: Tue, 10 Sep 2024 10:20:47 +0200
From: Michal Hocko <mhocko@...e.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Hailong Liu <hailong.liu@...o.com>, Barry Song <21cnbao@...il.com>,
	Lokesh Gidra <lokeshgidra@...gle.com>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Nicolas Geoffray <ngeoffray@...gle.com>, gaoxu <gaoxu2@...or.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Shaohua Li <shli@...com>, yipengxiang <yipengxiang@...or.com>,
	fengbaopeng <fengbaopeng@...or.com>,
	Kalesh Singh <kaleshsingh@...gle.com>
Subject: Re: [PATCH v2] mm: add lazyfree folio to lru tail

On Mon 09-09-24 15:22:15, Andrew Morton wrote:
[...]
> I'm not seeing much clarity on whether we should merge this change.  I
> think I'll drop this version - let's please revisit after -rc1.

I think the biggest thing to focus on is the change of the behavior and
whether LIFO aging strategy for MADV_FREE pages is really desirable. It
is a noticeable LRU antipattern.
-- 
Michal Hocko
SUSE Labs