From: Michal Hocko <mhocko@suse.com>
To: deepakraog <gaikwad.dcg@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] mm: vmpressure: scale sampling window with machine size
Date: Wed, 22 Jul 2026 10:07:53 +0200 [thread overview]
Message-ID: <amB6WXIEKEeKudOh@tiehlicka> (raw)
In-Reply-To: <20260715143646.15828-1-gaikwad.dcg@gmail.com>
On Wed 15-07-26 20:06:41, deepakraog wrote:
> The vmpressure window size was fixed at 512 pages (SWAP_CLUSTER_MAX * 16).
> Scale it at boot from total memory and CPU count using the same fls-based
> formula as vmstat per-zone thresholds, clamped between 128 and 2048 pages.
This is not giving us any rationale why this is needed or desirable.
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2026-07-22 8:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-15 14:36 deepakraog
2026-07-15 14:36 ` [PATCH 2/4] selftests/proc: expand smaps field coverage and require TMPFS deepakraog
2026-07-15 14:36 ` [PATCH 3/4] mm: vrealloc: grow vm_area mappings in place deepakraog
2026-07-15 14:36 ` [PATCH 4/4] ceph: release unused cap reservation on readdir error deepakraog
2026-07-15 17:51 ` Viacheslav Dubeyko
2026-07-22 8:07 ` Michal Hocko [this message]
2026-07-22 8:52 ` [PATCH 1/4] mm: vmpressure: scale sampling window with machine size Lorenzo Stoakes (ARM)
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=amB6WXIEKEeKudOh@tiehlicka \
--to=mhocko@suse.com \
--cc=akpm@linux-foundation.org \
--cc=david@kernel.org \
--cc=gaikwad.dcg@gmail.com \
--cc=liam@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ljs@kernel.org \
--cc=rppt@kernel.org \
--cc=surenb@google.com \
--cc=vbabka@kernel.org \
/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
all inboxes | Powered by JetHome®