From: Michal Hocko <mhocko@suse.com>
To: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>,
linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, akpm@linux-foundation.org,
axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com,
hannes@cmpxchg.org, david@kernel.org, zhengqi.arch@bytedance.com,
shakeel.butt@linux.dev, lorenzo.stoakes@oracle.com,
Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org,
surenb@google.com, ziy@nvidia.com, matthew.brost@intel.com,
rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net,
ying.huang@linux.alibaba.com, apopple@nvidia.com,
bingjiao@google.com, jonathan.cameron@huawei.com,
pratyush.brahma@oss.qualcomm.com
Subject: Re: [PATCH v4 3/3] mm/vmscan: don't demote if there is not enough free memory in the lower memory tier
Date: Mon, 2 Feb 2026 14:15:21 +0100 [thread overview]
Message-ID: <aYCjaVJZLijzk9oe@tiehlicka> (raw)
In-Reply-To: <aYCiboGiXO2lQC0W@tiehlicka>
Btw. collecting /proc/vmstat during this test could give you a better
insight into what is going on. Especially reclaim stats (pgscan*,
pgsteal*, pgdemote*, workingset*).
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2026-02-02 13:15 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-13 8:14 [PATCH v4 0/3] mm: fix oom-killer not being invoked when demotion is enabled Akinobu Mita
2026-01-13 8:14 ` [PATCH v4 1/3] mm: memory-tiers, numa_emu: enable to create memory tiers using fake numa nodes Akinobu Mita
2026-01-13 9:30 ` Pratyush Brahma
2026-01-13 8:14 ` [PATCH v4 2/3] mm: numa_emu: add document for NUMA emulation Akinobu Mita
2026-01-13 9:32 ` Pratyush Brahma
2026-01-13 8:14 ` [PATCH v4 3/3] mm/vmscan: don't demote if there is not enough free memory in the lower memory tier Akinobu Mita
2026-01-13 13:40 ` Michal Hocko
2026-01-14 12:51 ` Akinobu Mita
2026-01-14 13:40 ` Michal Hocko
2026-01-14 17:49 ` Gregory Price
2026-01-15 0:40 ` Akinobu Mita
2026-01-22 0:32 ` Akinobu Mita
2026-01-22 16:38 ` Gregory Price
2026-01-26 1:57 ` Akinobu Mita
2026-01-27 21:21 ` Gregory Price
2026-01-29 0:51 ` Akinobu Mita
2026-01-29 2:48 ` Gregory Price
2026-01-22 18:34 ` Joshua Hahn
2026-01-26 2:01 ` Akinobu Mita
2026-01-27 22:00 ` Joshua Hahn
2026-01-29 0:40 ` Akinobu Mita
2026-02-02 13:11 ` Michal Hocko
2026-02-02 13:15 ` Michal Hocko [this message]
2026-02-04 2:07 ` Akinobu Mita
2026-02-04 9:25 ` Michal Hocko
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=aYCjaVJZLijzk9oe@tiehlicka \
--to=mhocko@suse.com \
--cc=Liam.Howlett@oracle.com \
--cc=akinobu.mita@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=apopple@nvidia.com \
--cc=axelrasmussen@google.com \
--cc=bingjiao@google.com \
--cc=byungchul@sk.com \
--cc=david@kernel.org \
--cc=gourry@gourry.net \
--cc=hannes@cmpxchg.org \
--cc=jonathan.cameron@huawei.com \
--cc=joshua.hahnjy@gmail.com \
--cc=linux-cxl@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lorenzo.stoakes@oracle.com \
--cc=matthew.brost@intel.com \
--cc=pratyush.brahma@oss.qualcomm.com \
--cc=rakie.kim@sk.com \
--cc=rppt@kernel.org \
--cc=shakeel.butt@linux.dev \
--cc=surenb@google.com \
--cc=vbabka@suse.cz \
--cc=weixugc@google.com \
--cc=ying.huang@linux.alibaba.com \
--cc=yuanchu@google.com \
--cc=zhengqi.arch@bytedance.com \
--cc=ziy@nvidia.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox