From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D642C46CD2 for ; Wed, 24 Jan 2024 19:05:38 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C1F236B0088; Wed, 24 Jan 2024 14:05:37 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BA83D6B0089; Wed, 24 Jan 2024 14:05:37 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A488A6B008A; Wed, 24 Jan 2024 14:05:37 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 8E6CE6B0088 for ; Wed, 24 Jan 2024 14:05:37 -0500 (EST) Received: from smtpin22.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 288041405D1 for ; 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s=arc-20220608; d=hostedemail.com; t=1706123135; a=rsa-sha256; cv=none; b=1je99dwt65fYIWKd7Bg4Gv9ZDG8D6rJbqxwiW44g4E2D6fik23gx7RXOj+rYjo+DwlVS4B 6+KLtBkESZRxEhtosWNX3ZJivbd4vOl16tayvDRzkQWlMzOzY+NGBci0r+Xb4bLePq/Zsm FKK3xmNLwLOMZMJOYgGrAYNo/a/2G6M= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=none; spf=softfail (imf17.hostedemail.com: 62.72.0.81 is neither permitted nor denied by domain of cl@linux.com) smtp.mailfrom=cl@linux.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=linux.com (policy=none) 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: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Rspamd-Queue-Id: 3B2D64000D X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: kadukmr4xguz59g9ehta5zjgy4ap3eo9 X-HE-Tag: 1706123135-239737 X-HE-Meta: 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 onjBBuw7 GN4lCE0TxBFHbXsBCGxLy/MIgVvShtlFeuIPUVhiC8S22xwr1sAfpDsEdi+y1BXHD9DmGUQFb0NRWin4kCVR+mMFPI5l7Ht3WI6YStclROcvkLeBngyepH3LSkMac7XYcjbLSXgnI05n1mCWW/RjFgi0VfcxuEpBqX9ArweNNM+XpUAUD0tQnzsMzelBVOTaA3uJhBqsNIXziMenMb87Zj+AAx791s2T1JwYwNvMtPqa5JNFvdvKO4fLl+9XrAALJRiPcvBLP/BVc1ACnX1dAD6phsRWkqG/miJieJfvWdy7uiIU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000394, 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, 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.