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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 745D8C2D0CE for ; Tue, 21 Jan 2020 14:53:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4D3ED22314 for ; Tue, 21 Jan 2020 14:53:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D3ED22314 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CFAEB6B0005; Tue, 21 Jan 2020 09:53:47 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id CD1FB6B000C; Tue, 21 Jan 2020 09:53:47 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C0F786B000D; Tue, 21 Jan 2020 09:53:47 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0061.hostedemail.com [216.40.44.61]) by kanga.kvack.org (Postfix) with ESMTP id AAAE06B0005 for ; Tue, 21 Jan 2020 09:53:47 -0500 (EST) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id 5F36A40F4 for ; Tue, 21 Jan 2020 14:53:47 +0000 (UTC) X-FDA: 76401935694.02.space20_3e1edfacb3f3d X-HE-Tag: space20_3e1edfacb3f3d X-Filterd-Recvd-Size: 1856 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by imf28.hostedemail.com (Postfix) with ESMTP for ; Tue, 21 Jan 2020 14:53:46 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 0C4A1AE9E; Tue, 21 Jan 2020 14:53:44 +0000 (UTC) Date: Tue, 21 Jan 2020 15:53:44 +0100 From: Michal Hocko To: Li Xinhai Cc: Mike Kravetz , "linux-mm@kvack.org" , akpm , "yang.shi" , n-horiguchi Subject: Re: [PATCH 2/2] mm/mempolicy: Skip walking HUGETLB vma if MPOL_MF_STRICT is specified alone Message-ID: <20200121145344.GM29276@dhcp22.suse.cz> References: <20200116075933.GN19428@dhcp22.suse.cz> <20200117103819968585195@gmail.com> <20200117075759.GH19428@dhcp22.suse.cz> <20200117200521532456232@gmail.com> <20200117152022.GI19428@dhcp22.suse.cz> <20200117234600029919288@gmail.com> <20200120124511.GC18451@dhcp22.suse.cz> <20200121221540529432413@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20200121221540529432413@gmail.com> Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 21-01-20 22:15:43, Li Xinhai wrote: [...] > Knowing about misplaced pages from mbind will give me flexibility for > choosing=A0different solutions. Would /proc/pid/numa_maps help to give you rough idea which mappings of interest have misplaced pages and move_pages for those? It is still allocating arrays but is that really a big deal? --=20 Michal Hocko SUSE Labs