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=-2.5 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 4DC53C432C0 for ; Thu, 21 Nov 2019 18:04:06 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1490B2068F for ; Thu, 21 Nov 2019 18:04:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1490B2068F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B97B96B036C; Thu, 21 Nov 2019 13:04:05 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B46F36B036D; Thu, 21 Nov 2019 13:04:05 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A85326B036E; Thu, 21 Nov 2019 13:04:05 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0165.hostedemail.com [216.40.44.165]) by kanga.kvack.org (Postfix) with ESMTP id 92C6B6B036C for ; Thu, 21 Nov 2019 13:04:05 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 31EE88249980 for ; Thu, 21 Nov 2019 18:04:05 +0000 (UTC) X-FDA: 76181058450.08.skin72_40b7040678411 X-HE-Tag: skin72_40b7040678411 X-Filterd-Recvd-Size: 2992 Received: from mail-wr1-f66.google.com (mail-wr1-f66.google.com [209.85.221.66]) by imf45.hostedemail.com (Postfix) with ESMTP for ; Thu, 21 Nov 2019 18:04:04 +0000 (UTC) Received: by mail-wr1-f66.google.com with SMTP id z3so5594120wru.3 for ; Thu, 21 Nov 2019 10:04:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=iMS8WThQLgXSYyBxSADTHOAcqudcuVlRYct6kXLQmYg=; b=YkRSEO9mwUcxQ6RowDV33NtdHr002yU8vqPxCVoWAIdsvOX1eAceROzC52GQ1nKS89 5EoZdzgNpmqcdsHx7UWB3phEshPCehoIe7BUwx4DOCX7YdLPwRPgLHmVvC18hlmmf+U0 iBi8Dsyekqx9rogY5GZ5yELmE0aMAgwktEjCMi8dTca0UCKPkL0czUfmwcVdetfaFIsg CnLJGlJ67WJeqvDx5iwt1MXDGplndUP5Xbd57qZN6FooxKa06YaoLPl/Jdo9Xycr/YTg G2TeT+LGGiCyr2/8U90smlZeWqukEGAJs3IOU4fpPGtJ0mQNDKklr8qV+2fBffTsaVIm vGWw== X-Gm-Message-State: APjAAAUcMG5PiOQulBfJSJSLQKAxPvfMHDhAZsKohRwdMYeLwY94lEHS EGcHyUYE6OFUp7npZJ4sdSY= X-Google-Smtp-Source: APXvYqyu+Eq7u50JFAbXTk9DnsWsPzHOCn7SZlNlBn2hxw+SJW8ZwTVVzQDhHlOIKA/BwIJSnyuEwg== X-Received: by 2002:a5d:4991:: with SMTP id r17mr12620993wrq.176.1574359443578; Thu, 21 Nov 2019 10:04:03 -0800 (PST) Received: from localhost (ip-37-188-163-220.eurotel.cz. [37.188.163.220]) by smtp.gmail.com with ESMTPSA id u18sm4201832wrp.14.2019.11.21.10.04.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Nov 2019 10:04:02 -0800 (PST) Date: Thu, 21 Nov 2019 19:04:01 +0100 From: Michal Hocko To: Pengfei Li Cc: akpm@linux-foundation.org, mgorman@techsingularity.net, vbabka@suse.cz, cl@linux.com, iamjoonsoo.kim@lge.com, guro@fb.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC v1 00/19] Modify zonelist to nodelist v1 Message-ID: <20191121180401.GL23213@dhcp22.suse.cz> References: <20191121151811.49742-1-fly@kernel.page> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191121151811.49742-1-fly@kernel.page> User-Agent: Mutt/1.10.1 (2018-07-13) 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: On Thu 21-11-19 23:17:52, Pengfei Li wrote: [...] > Since I don't currently have multiple node NUMA systems, I would be > grateful if anyone would like to test this series of patches. I didn't really get to think about the actual patchset. From a very quick glance I am wondering whether we need to optimize as there are usually only small amount of numa nodes. But I am quite busy so I cannot really do any claims. Anyway, you can test this even without NUMA HW. Have a look at numa=fake option (numa_emu_cmdline). Or you can use kvm/qemu which provides easy ways to setup a NUMA capable virtual machine. -- Michal Hocko SUSE Labs