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 50B8DCEE345 for ; Wed, 9 Oct 2024 20:24:36 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id DBE116B0098; Wed, 9 Oct 2024 16:24:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D459D6B00A2; Wed, 9 Oct 2024 16:24:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BBF136B00A8; Wed, 9 Oct 2024 16:24:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 9D0086B0098 for ; Wed, 9 Oct 2024 16:24:35 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 7AEE3C0B9F for ; Wed, 9 Oct 2024 20:24:32 +0000 (UTC) X-FDA: 82655191710.20.882BDF5 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf28.hostedemail.com (Postfix) with ESMTP id 94727C0002 for ; Wed, 9 Oct 2024 20:24:33 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=2qzkbhuA; dmarc=none; spf=pass (imf28.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1728505323; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=TCS0zSQTCadVqk2Y39+SINdQAA9/OIUqCm5jqJA+o4E=; b=JywhyIDJbdBw6FWrl+5QF9MX9mwQf/VdPIA6Em9aKxe+5TNl2+A1Ncn4d2UjQgWedw2yPO KDGIKb/f2rzpPZCxaYCwSkhroPEhom75YTO8z6nyif+1NWysgn5NHA4o6qD42g0nHBaFhN ELPNvkNc5uN0bWE5Wc43A7GhV6gTxV8= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1728505323; a=rsa-sha256; cv=none; b=zbmW6EyTmclBjDfZjLuRPkZrZFBFt8B0aLFtAwBNWbC5MCcOG5IX2UKoRE127DWwoBiTis 71FRzpr0b+Lm+WLgRR7yWgf5QiQa+4GD3ejp6O3KCPWfedUQ9BwhCepwngZdosLwdeaa5P wQjTK63YM0tQOpam+OkFzAb/yxhah/g= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=2qzkbhuA; dmarc=none; spf=pass (imf28.hostedemail.com: domain of akpm@linux-foundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6D42C5C58B1; Wed, 9 Oct 2024 20:24:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D537EC4CECC; Wed, 9 Oct 2024 20:24:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1728505469; bh=Eajpzm9cUrzs//zMnCTfeMFhUIL/3eN5uDlR9BWdmqo=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=2qzkbhuAMgino0DZ1hZZqBEMfexCBWtSiEWzzjILyq+cbaAjGfaWTcyToRrfMFDWm Pjg8qjtjvKxkLVmq5KcKfEzMazZd7B9b+cvi3EOmzQaV9Z6xen8oKafvJ4u9r6ZkXt owPHlRmA15/hxoqOKllm//ythdYQC4jZ89tWfNZw= Date: Wed, 9 Oct 2024 13:24:27 -0700 From: Andrew Morton To: Mike Rapoport Cc: Andreas Larsson , Andy Lutomirski , Ard Biesheuvel , Arnd Bergmann , Borislav Petkov , Brian Cain , Catalin Marinas , Christoph Hellwig , Christophe Leroy , Dave Hansen , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , Helge Deller , Huacai Chen , Ingo Molnar , Johannes Berg , John Paul Adrian Glaubitz , Kent Overstreet , "Liam R. Howlett" , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Matt Turner , Max Filippov , Michael Ellerman , Michal Simek , Oleg Nesterov , Palmer Dabbelt , Peter Zijlstra , Richard Weinberger , Russell King , Song Liu , Stafford Horne , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Uladzislau Rezki , Vineet Gupta , Will Deacon , bpf@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-trace-kernel@vger.kernel.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages Message-Id: <20241009132427.5c94fb5942bae3832446bca5@linux-foundation.org> In-Reply-To: <20241009180816.83591-8-rppt@kernel.org> References: <20241009180816.83591-1-rppt@kernel.org> <20241009180816.83591-8-rppt@kernel.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 94727C0002 X-Stat-Signature: u811pcytti86any5neg6z9wmmfnyttox X-Rspam-User: X-HE-Tag: 1728505473-252668 X-HE-Meta: U2FsdGVkX1+NIi20cysu0YvQmEXlmr4NJtUwGzSetf2l0RIcFU2OAxBPdIxo4bZaEIlSqt6fm1aRrXTojOBcZ0kO8SylCi4ixXEP2Gj5CN+nlE96IZ8Xin2mYlHlZYRc+8mBx1uyyYDKMM7SjxSuiLWUFrbiBicpuPyTsGUYgxdwI5MIVzJo3nWJqxfWRbY1uViZayxHu0DFFyZYSIN4FwzG0bK0TCVUJ1v4eNZPk9cVHKLo3pFbndkE68uNmNW5q5jNhz82HJtTiwiJaAHyY8CCJRRQgeqCA/uQpqt6bTc+Gq3yipXVoVOOYz+DrUdTxjv3RwAVpPuS7VSws+UE0fDHWzGAouV7CWG5rGdJcl4Scwmq90FkpQ4rsCTPJG5Di7Ryfhj27346e3URb8OpIHb47QeRPK0/L7P7P/JNOQWmNJFd/t/qCVXdo+dpkprqq3p+oLmRsDYlGosOBw8O+yqd497jxU9xYjhiKOKjDm5wTqMPG+2/lz4Ex5GqpizWBLnMQ0HNsS4yM3pKwe6u9673whmg30w30yezm3XXI00CupjnrMYHiYc04aiwDXjzalKhAGWRQagulG9mVWPpi3qSBaWot7vp03S+8jQToeex6lwZ469qsdA1Jv037DONvnNkMVv62RiSGQXZT2RPDne54fNcC2pdkZckiTljs279mjikKbPDd6gxYopFvqFbmFPlbN7q+w0Txg+FPtPpPH2WtS0hHg2bMelLijTSK1UZU2og2WShbzTicinI7VgwJUGVagqwr8zojf3TGA38YuN8VHInweRgiTAQIybeFjLBS1iuvAcctBo9OT1SDywV4/sEBqSnk9LTsStnqHanEAR/yM/d0PH9yuPKy2R0OLFUrX3c2UTVDyeLgOwwO6TSSEjAPt0515fuxkP4hcSDGN5kcHWgvVjbM94Ma2vUNNo0xbsINnqKlZ/lT44XcQfJRP6kHgjmimKEuQ/Umnk 82kkyXTG +tMF1r8XZrMxSKI8WYWOR3Qg2HHu0INFipRzZ5LWZAimIc4CW3988P6dVOL+3P8oa6qhyXRLZKuH4lztlvkP248QkGLvjDxSApmN78J7Hm6dHBB+DKxeIQ/0CNY2x5H6z4gZ3DiNV2+tWznDbRY8LAHjllY4Ye4kvtOwgvF0hDTb8DDX9nRhll9yI6IJPjT2Bvx27Eu+LM5VSax6EDfSx0QHxHStfeF+uj74Ns7DP8xBUFpLawgCI7A4+7cDodTvLAnCqt5VEwtNzeI6qHzcMI4clLg== 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 Wed, 9 Oct 2024 21:08:15 +0300 Mike Rapoport wrote: > Using large pages to map text areas reduces iTLB pressure and improves > performance. Are there any measurable performance improvements? What are the effects of this series upon overall memory consumption? The lack of acks is a bit surprising for a v5 patch, but I'll add all this to mm.git for some testing, thanks.