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Received: from willy by casper.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1to2S3-00000002B9m-168B; Fri, 28 Feb 2025 15:38:59 +0000 Date: Fri, 28 Feb 2025 15:38:59 +0000 From: Matthew Wilcox To: David Hildenbrand Cc: Linus Torvalds , Mathieu Desnoyers , Andrew Morton , linux-kernel@vger.kernel.org, Olivier Dion , linux-mm@kvack.org Subject: Re: [RFC PATCH 0/2] SKSM: Synchronous Kernel Samepage Merging Message-ID: References: <20250228023043.83726-1-mathieu.desnoyers@efficios.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Queue-Id: 87A9540002 X-Rspamd-Server: rspam09 X-Stat-Signature: u4cwmg5n37s3wybnt7c9b3y7eunr9kns X-HE-Tag: 1740757142-936627 X-HE-Meta: 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 jasEPm5u LB7LyarxR2DL5rfM/AU57Xcj9Fo0OtvryHumhAcq5UScJBARYvnjfAdZL3UyG9/yODabSjdsATqSlj0Ir6XoY8R6piqtA1zFvwREqBZYA6AM3KLDAKkCd2O2AZjFYiCgyYFb9g/pb6ZO/CQgOxFYWLeQt+2pw/68OVP6jGNvz0raKFsapXpCQxHcf+H32Q9UkhPKpMo1zY2uaykUiEOOClwzN2nhlPJFpFZ70 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 Fri, Feb 28, 2025 at 04:34:50PM +0100, David Hildenbrand wrote: > Maybe it would be comparable to khugepaged vs. MADV_COLLAPSE? I think it is comparable ... because many people find khugepaged unacceptable and there are proposals to move that to userspace.