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b=LK6bi9LtFJ8g9ArdhgcBTpD2Lx mZAgYqoQu7bHWMFgkn9JNXkJtW04BrcFjUWsRm/Kf38g+Cot1sZchAdWS3inhqdbm4UpWehd2YmBY qt31ueCe6vwVVzMzM8BXBPnDVB0AF/yEFvuB3+7RVclYr+ueZl1BsewI+J6eubaEXXCfJ2Q8EzdLD jRjNbvNh8rXquqXtNefejbj3bcjtGnFOXZd+Gk6mLnZVL3u3r3NskLbU1znQ58/3Rq2TY9EpkOMXe t/AiZcFNhGj/OWmBjfghi+igOuk0iLwjXf+ILBxWG6b7Iymrh+w87paJbwF7yCjkS6YCgrygwQqph BYIrMxxQ==; Received: from fangorn.home.surriel.com ([10.0.13.7]) by shelob.surriel.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.97.1) (envelope-from ) id 1w8T47-000000001SB-02vK; Thu, 02 Apr 2026 21:11:15 -0400 Message-ID: Subject: Re: [PATCH v2] mm/vmpressure: skip socket pressure for costly order reclaim From: Rik van Riel To: Shakeel Butt , "JP Kobryn (Meta)" Cc: linux-mm@kvack.org, willy@infradead.org, hannes@cmpxchg.org, akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, kasong@tencent.com, qi.zheng@linux.dev, baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, kuba@kernel.org, edumazet@google.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com Date: Thu, 02 Apr 2026 21:11:14 -0400 In-Reply-To: References: <20260402232511.17246-1-jp.kobryn@linux.dev> Autocrypt: addr=riel@surriel.com; 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charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2026-04-02 at 18:03 -0700, Shakeel Butt wrote: >=20 > Net not doing costly order allocations is irrelevant here. IIUC you > want all > costly order allocations (like THPs) to not raise vmpressure as those > don't > necessarily represents the memory pressure. >=20 It sure will be nice to not have THP enabled=3Dalways, defrag=3Ddefer result in smaller network buffers, and reduced network performance! Reviewed-by: Rik van Riel --=20 All Rights Reversed.