From: Michal Hocko <mhocko@suse.com>
To: Shakeel Butt <shakeel.butt@linux.dev>
Cc: lsf-pc@lists.linux-foundation.org,
Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
David Hildenbrand <david@kernel.org>,
Qi Zheng <zhengqi.arch@bytedance.com>,
Lorenzo Stoakes <ljs@kernel.org>,
Chen Ridong <chenridong@huaweicloud.com>,
Emil Tsalapatis <emil@etsalapatis.com>,
Alexei Starovoitov <ast@kernel.org>,
Axel Rasmussen <axelrasmussen@google.com>,
Yuanchu Xie <yuanchu@google.com>, Wei Xu <weixugc@google.com>,
Kairui Song <ryncsn@gmail.com>,
Matthew Wilcox <willy@infradead.org>,
Nhat Pham <nphamcs@gmail.com>, Gregory Price <gourry@gourry.net>,
Barry Song <21cnbao@gmail.com>,
David Stevens <stevensd@google.com>,
Vernon Yang <vernon2gm@gmail.com>,
David Rientjes <rientjes@google.com>,
Kalesh Singh <kaleshsingh@google.com>,
wangzicheng <wangzicheng@honor.com>,
"T . J . Mercier" <tjmercier@google.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Suren Baghdasaryan <surenb@google.com>,
Meta kernel team <kernel-team@meta.com>,
bpf@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [LSF/MM/BPF TOPIC] Towards Unified and Extensible Memory Reclaim (reclaim_ext)
Date: Thu, 26 Mar 2026 16:24:04 +0100 [thread overview]
Message-ID: <acVPlB1Y8IR-RKCg@tiehlicka> (raw)
In-Reply-To: <acUzMdxCDfbuyv9J@linux.dev>
On Thu 26-03-26 06:44:07, Shakeel Butt wrote:
> On Thu, Mar 26, 2026 at 08:12:10AM +0100, Michal Hocko wrote:
> > On Wed 25-03-26 14:06:37, Shakeel Butt wrote:
[...]
> > I think we should focus to make a single canonical reclaim
> > implementation work well. I.e. we deal with most (or ideally all) known
> > regressions of MGLRU.
>
> Here we disagree on the approach or steps to reach the single canonical reclaim
> implementation. MGLRU is a plethora of different mechanisms and policies and it
> never went through rigorous evaluation for each of those mechanisms and
> policies individually. To me that needs to be done to have one solution.
If my recollection is correct from the LSFMM (2022) there was a promise that
MGLRU architecture should allow to add extension and eventually
supersede traditional LRU. If we do not see that happening then we
should re-evaluate current MGRLU approach. I do not think we want to
build reclaim_ext architecture on top of the current code. Or are you
suggesting to achieve MGLRU through reclaim_ext?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2026-03-26 15:24 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-25 21:06 [LSF/MM/BPF TOPIC] Towards Unified and Extensible Memory Reclaim (reclaim_ext) Shakeel Butt
2026-03-26 0:10 ` T.J. Mercier
2026-03-26 2:05 ` Andrew Morton
2026-03-26 7:03 ` Michal Hocko
2026-03-26 8:02 ` Lorenzo Stoakes (Oracle)
2026-03-26 12:37 ` Kairui Song
2026-03-26 13:13 ` Lorenzo Stoakes (Oracle)
2026-03-26 13:42 ` David Hildenbrand (Arm)
2026-03-26 13:45 ` Lorenzo Stoakes (Oracle)
2026-03-26 16:02 ` Lorenzo Stoakes (Oracle)
2026-03-26 20:02 ` Axel Rasmussen
2026-03-26 20:30 ` Gregory Price
2026-03-26 20:47 ` Axel Rasmussen
2026-03-27 3:43 ` Matthew Wilcox
2026-03-27 19:12 ` Tal Zussman
2026-03-27 19:43 ` Gregory Price
2026-04-14 21:11 ` Tal Zussman
2026-04-09 0:21 ` John Hubbard
2026-04-09 8:22 ` Lorenzo Stoakes
2026-04-14 21:38 ` Tal Zussman
2026-04-14 20:35 ` Tal Zussman
2026-03-27 8:07 ` [Lsf-pc] " Vlastimil Babka
2026-03-27 9:29 ` Lorenzo Stoakes (Oracle)
2026-03-26 12:06 ` Kairui Song
2026-03-26 12:31 ` Lorenzo Stoakes (Oracle)
2026-03-26 13:17 ` Kairui Song
2026-03-26 13:26 ` Lorenzo Stoakes (Oracle)
2026-03-26 13:21 ` Shakeel Butt
2026-03-26 7:12 ` Michal Hocko
2026-03-26 13:44 ` Shakeel Butt
2026-03-26 15:24 ` Michal Hocko [this message]
2026-03-26 18:21 ` Shakeel Butt
2026-03-26 7:18 ` wangzicheng
2026-03-26 11:43 ` Lorenzo Stoakes (Oracle)
2026-03-26 15:24 ` Gregory Price
2026-03-26 15:35 ` Lorenzo Stoakes (Oracle)
2026-03-26 16:32 ` Gregory Price
2026-03-26 16:40 ` Lorenzo Stoakes (Oracle)
2026-03-27 19:53 ` Johannes Weiner
2026-04-07 11:36 ` Lorenzo Stoakes
2026-04-07 16:56 ` Gregory Price
2026-04-07 17:30 ` Lorenzo Stoakes
2026-04-07 17:52 ` Johannes Weiner
2026-04-07 18:37 ` Gregory Price
2026-04-08 6:48 ` Lorenzo Stoakes
2026-03-26 18:49 ` Shakeel Butt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=acVPlB1Y8IR-RKCg@tiehlicka \
--to=mhocko@suse.com \
--cc=21cnbao@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=ast@kernel.org \
--cc=axelrasmussen@google.com \
--cc=baolin.wang@linux.alibaba.com \
--cc=bpf@vger.kernel.org \
--cc=chenridong@huaweicloud.com \
--cc=david@kernel.org \
--cc=emil@etsalapatis.com \
--cc=gourry@gourry.net \
--cc=hannes@cmpxchg.org \
--cc=kaleshsingh@google.com \
--cc=kernel-team@meta.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ljs@kernel.org \
--cc=lsf-pc@lists.linux-foundation.org \
--cc=nphamcs@gmail.com \
--cc=rientjes@google.com \
--cc=ryncsn@gmail.com \
--cc=shakeel.butt@linux.dev \
--cc=stevensd@google.com \
--cc=surenb@google.com \
--cc=tjmercier@google.com \
--cc=vernon2gm@gmail.com \
--cc=wangzicheng@honor.com \
--cc=weixugc@google.com \
--cc=willy@infradead.org \
--cc=yuanchu@google.com \
--cc=zhengqi.arch@bytedance.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.