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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 73798C48260 for ; Wed, 24 Jan 2024 17:55:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8nHJpxze9i3uCOhGTrGvmXB+FRPyyXp/F8Bkilw7L18=; b=jLvbL0g6v1Gk/goxNnx0lIkgWX 0Ag72Hl5q32t/zkL52H/98Aw/fW0sL+2Vy+W2Ihdtw2WxIyZMzCFH5SuGEKKklTQ8Xvk3nuy6eRl3 LZwCLcaBE5CjfXuB0oJMAzzW//QJZP2gsqOEgifACLF4gYX3MbXKjjRgq5nW5m00WEyxmrvbXeIHT R234MBdoBQo6nrof5EPZQvXZRQ55D/lqZS1S/3/E4ag3u2zvNFqYavpOmWk6eehPvLRJ86mkS6MNi y+Skv4asR0PoFVKHwftOe2I8GLOzpbu2WjDPMLee0zzF7zDp+KONAJZmrjU3h4W2TZneQm067m9I8 uB/QDJew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rShTb-004bWb-0O; Wed, 24 Jan 2024 17:55:51 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rShTZ-004bVF-1R for linux-nvme@bombadil.infradead.org; Wed, 24 Jan 2024 17:55:49 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=8nHJpxze9i3uCOhGTrGvmXB+FRPyyXp/F8Bkilw7L18=; b=g4Gbu+QOZjcYDq1GX/CDd67xHQ 1MS2y9fFaTAAJ6vO8sFRAVyk/JnxX4hhNK3I6E7t0IGS/3oGdUQQc2wVXu7jLTM4KIf7Akg27WWex +izhhj1Ds/mX2I0vTtpSsOIaG4EU1c/T4eGoZGcZaJSaP1cPW6I/bESRrkHVZ17kK1sstMEANhNzm JgFmlZgjGUTRWuNS4HllcmC5yUs5YnmBV0Om9LJjAN2fS2+9dknKqY7yhnIN0B8JnY3J1RRmw4f2B OBae5YKcDNoYlXZs7ihRQgOiTff75Oww/7n+OnE/AGJZFp+JwmhmUCoUwdieCrHNXh8DIuXVWOadO VcW8VyQA==; 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-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org 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.