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Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rShTW-00000007Lpb-2ECT; Wed, 24 Jan 2024 17:55:46 +0000 Date: Wed, 24 Jan 2024 17:55:46 +0000 From: Matthew Wilcox To: "Christoph Lameter (Ampere)" Cc: David Rientjes , Pasha Tatashin , Sourav Panda , lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org, bpf@vger.kernel.org Subject: Re: [LSF/MM/BPF TOPIC] State Of The Page Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Stat-Signature: n3qys7tgkpcizyo9byncuhi3k5dh4hsn X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 80E60C002A X-Rspam-User: X-HE-Tag: 1706118953-668985 X-HE-Meta: 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 Eg76xVMd GkoksSm0Iazv8Cnrk88JyZtZCEBnXKG8INanpZbv6G7jdyb8HlLL7gJa9FqilAjOouDAvi+pSg6NlBVWQ3LG6thzrLAfYVF9k/Ige+IKXrm4HP4507IjTQL2R6X3svgM1ZcJXVEwJ3F9FkTEU+SXV/wN/fGybW/wN+nf1sf6UyrBDt5qX7xNDmnXK9drvtdx01o2DuFR52Mlui5GpE8shlO+vbNyTembLlPi34CRoxCtZyN+RDtPVdOhauwfbdTD59sUBJe0qHk+zxQ5BTxqxguc+WA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.011909, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jan 24, 2024 at 09:51:02AM -0800, Christoph Lameter (Ampere) wrote: > Can we come up with a design that uses a huge page (or some arbitrary page > size) and the breaks out portions of the large page? That way potentially > TLB use can be reduced (multiple sections of a large page use the same TLB) > and defragmentation occurs because allocs and frees focus on a selection of > large memory sections. Could I trouble you to reply in this thread: https://lore.kernel.org/linux-mm/Za6RXtSE_TSdrRm_@casper.infradead.org/ where I actually outline what I think we should do next.