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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 C7386CEE343 for ; Wed, 9 Oct 2024 20:24:38 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4XP49w72sGz3bcP; Thu, 10 Oct 2024 07:24:36 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=139.178.84.217 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1728505476; cv=none; b=VdlRpGGtY9Ad4V4EX9y7JjshJ5FQuP3WYB7oLhbXM8CFW4GmmDZrD+eDS0uksSMge3xvRsKqjWguPUwBWj2Iuehd2dGV+AfktNjNHJModnfmEVD1UByKoZyVhVDHKwf1BgYlWWfxtb6vV045UBGMi5Gbxc0hoagwBM6iZ4eVYz9eAZ/3xQYGQlAFDRR8vq1GBNkGu124fd3o4xNS99XQEA115TW8iv9WMxkRZs156iqUBHp6OTCdVCBTCHlsUbVa18yxvS3UIrDnXP8RZ+oN4XB4g/5P43TQZUeulTHdethLVLehSUYpWxOt59GzVFSzrCIUFD51yoGQfTq2uTby2A== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1728505476; c=relaxed/relaxed; bh=TCS0zSQTCadVqk2Y39+SINdQAA9/OIUqCm5jqJA+o4E=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=KC6r6AwhObbsEGtwUX7Y8ikXyFeQhDxANdi+51vcWqsZDe/sjs1GFjWB/Um892dOQtJ3fpJYkIfH32XjTSaIBFoikLF4TUJBh/NtQMjT/aio8Q8YWDUH7MB9PvoeL3IperJiR+ujhHdREGOljXfN3NFKVmC76xnnkfAUUaiSNJV2nhQvTtcnMIDuLFPf3AlgVkABFTfpi49fFh0nsrMqYA7s7vv+YD34zS3ni2Le/h+OFTcpYie1K/vYF5rml1SFJUVkua/oirVHap/MUORQGEqrJ2Yu2kyDjPC1NocvmwmLN9Ap1fczgfsSoZ8e0E2QZSv+3RdAfsyjRHr+Te3q8g== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org; dkim=pass (1024-bit key; unprotected) header.d=linux-foundation.org header.i=@linux-foundation.org header.a=rsa-sha256 header.s=korg header.b=2qzkbhuA; dkim-atps=neutral; spf=pass (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=akpm@linux-foundation.org; receiver=lists.ozlabs.org) smtp.mailfrom=linux-foundation.org Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linux-foundation.org header.i=@linux-foundation.org header.a=rsa-sha256 header.s=korg header.b=2qzkbhuA; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux-foundation.org (client-ip=139.178.84.217; helo=dfw.source.kernel.org; envelope-from=akpm@linux-foundation.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4XP49v4KLLz30VJ for ; Thu, 10 Oct 2024 07:24:34 +1100 (AEDT) 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) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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.