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: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-15 14:36 [PATCH 1/4] mm: vmpressure: scale sampling window with machine size 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
2026-07-15 18:16 ` [PATCH] fix: release unused ceph " deepakroag
2026-07-16 17:24 ` Viacheslav Dubeyko
2026-07-15 18:16 ` [PATCH 4/4] " deepakroag
2026-07-15 18:26 ` deepakroag
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)
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