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 X-Spam-Level: X-Spam-Status: No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC809C433F5 for ; Wed, 5 Sep 2018 21:13:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 32B6320659 for ; Wed, 5 Sep 2018 21:13:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cR5jXW1+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 32B6320659 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727644AbeIFBpX (ORCPT ); Wed, 5 Sep 2018 21:45:23 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:43124 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727069AbeIFBpW (ORCPT ); Wed, 5 Sep 2018 21:45:22 -0400 Received: by mail-pf1-f196.google.com with SMTP id j26-v6so4097812pfi.10 for ; Wed, 05 Sep 2018 14:13:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:cc:date:message-id:user-agent:mime-version :content-transfer-encoding; bh=PrM3TBGsiWAzwppBp1iAxyBHbfSoPrUIEmFqlambUSs=; b=cR5jXW1+/GuOQhU3LI5ukQMbdXrHw8Uaaj6+9R6LpvTWACJD24GexcV2aXJHz1kNV6 KkKtX9v4CoPaIvCpnvYffkH02u2Nsexkat0zuACasmOt/mpqZs9CPtfnY/hYPqr9xSE+ TCdI12B+KDrnpx1ZhgUnI/Vce0MTuCDBEM96zEhaR4wYhPKu1jlRFOf2bI+gbR3oVp9F K1a5Ed+Ta6K05sdyeBVKZfFKlztTvHeJ4ki2NinLQUGAd3c6saef38YHsPgOs5rrXyLK 1b6lkElDvRMPY46UtsrdILPTqbt04Cu9QJwmmCWAVmZKCjcgsbx4IzZ8k/95TtP2f3cv f8NA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:date:message-id:user-agent :mime-version:content-transfer-encoding; bh=PrM3TBGsiWAzwppBp1iAxyBHbfSoPrUIEmFqlambUSs=; b=e8cFJQ1zTU8J3PI4QXgg0olDFNj8Bh10aUBLBYWq6sa40eE46rrleNEYZw91XvfK8g zaM/l5gf7pcl9Rbh6jjDglTxbipeZj+mjfwZYUx+3i4QZpYzFC8v+ZxHt/oh62CUEePE 6TOofAoNgJKTI0QCBnQaQjPbxlQF4ZS5/fz+xkOx7PD7mUVY0wZHlsRcyVVsPoNOVrsp PGPpxcM+3+9MeQ3w66PYWXD0h/rW09n/Pb49kf/uD1ujeUiERTkFe0G/VqS6ykok7Tgt IjyvH1DvWDaLkD/zW4qli6ENy5iqT5xo/VZUwPPoJBU4OuvkZO8F9cdoik95T9hrJX1b DUhg== X-Gm-Message-State: APzg51Dgmu4ObYrO3i9W3AlNAHobDTFZY4BW549lTwJwGpOAU+pDJanG RKWRGv82Tr/MknFGL3LVUCM= X-Google-Smtp-Source: ANB0VdbZeRNP7la+1lxRJBJ3sS1G3Lkw41HOzRklrofSZt2Ez/KriXuI1oAcTZeEjvNcS5YpPvm37A== X-Received: by 2002:a62:45d2:: with SMTP id n79-v6mr42671057pfi.137.1536182003347; Wed, 05 Sep 2018 14:13:23 -0700 (PDT) Received: from localhost.localdomain (static-50-53-21-37.bvtn.or.frontiernet.net. [50.53.21.37]) by smtp.gmail.com with ESMTPSA id d12-v6sm4788230pfk.69.2018.09.05.14.13.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 05 Sep 2018 14:13:22 -0700 (PDT) Subject: [PATCH v2 0/2] Address issues slowing memory init From: Alexander Duyck To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: alexander.h.duyck@intel.com, pavel.tatashin@microsoft.com, mhocko@suse.com, dave.hansen@intel.com, akpm@linux-foundation.org, mingo@kernel.org, kirill.shutemov@linux.intel.com Date: Wed, 05 Sep 2018 14:13:22 -0700 Message-ID: <20180905211041.3286.19083.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series is meant to address some issues I consider to be low-hanging fruit in regards to memory initialization optimization. With these two changes I am able to cut the hot-plug memory initialization times in my environment in half. v2: Added comments about why we are using __SetPageReserved Added new config and updated approach used for page init poisoning --- Alexander Duyck (2): mm: Move page struct poisoning to CONFIG_DEBUG_VM_PAGE_INIT_POISON mm: Create non-atomic version of SetPageReserved for init use include/linux/page-flags.h | 9 +++++++++ lib/Kconfig.debug | 14 ++++++++++++++ mm/memblock.c | 5 ++--- mm/page_alloc.c | 13 +++++++++++-- mm/sparse.c | 4 +--- 5 files changed, 37 insertions(+), 8 deletions(-) --