From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gentwo.org (gentwo.org [62.72.0.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C77AD7CF3F; Wed, 24 Jan 2024 19:05:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.72.0.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706123137; cv=none; b=Xyw/3CwBMQLRM7tnbV2M2G4nrBi0l4IqRG8NuPdx+yyqQk8Ru7jFCZAlFVlDuOMX+Kwo9FPKoDHedvgwtV4GVm4/yMyYQdlpaxrQeUw9zqT5vBn7IxA5g/rXcjoSPCjQrv8O6RQ8+f0RuWJ88pbmeyLKdlovM5p1fx1YcYmP+3o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706123137; c=relaxed/simple; bh=35mM6I4/a8/AAfo6vEpCkUubuJeihuMJQkFca3EvMAM=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=XuE8Cp2LTbgq17uvRi9Ata41y4BI5e7jlUfyX0nK4Red+ALj1TN8h3aUgYpMIzbhP0390BIYjEm69BVOVp7NS2OJpKL2lFfmN/A291H9UinoMvgeVUmdIYfO62jc6hukGXyloZ+KHRkiIolbdZNOasFPT4uYXxAq4Xk7xDknG6s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com; spf=fail smtp.mailfrom=linux.com; arc=none smtp.client-ip=62.72.0.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=linux.com Received: by gentwo.org (Postfix, from userid 1003) id C086040A94; Wed, 24 Jan 2024 11:05:33 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by gentwo.org (Postfix) with ESMTP id BFEA640787; Wed, 24 Jan 2024 11:05:33 -0800 (PST) Date: Wed, 24 Jan 2024 11:05:33 -0800 (PST) From: "Christoph Lameter (Ampere)" To: Matthew Wilcox 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 In-Reply-To: Message-ID: <52821f7a-bb6f-308c-38b0-e5e9904d4f8c@linux.com> References: Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed On Wed, 24 Jan 2024, Matthew Wilcox wrote: > 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. Ahh... ok. Will do.