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=-12.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,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 E12C8C433DF for ; Mon, 24 Aug 2020 18:42:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9B94C2075B for ; Mon, 24 Aug 2020 18:42:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="NOVxsxxf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B94C2075B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 266426B0002; Mon, 24 Aug 2020 14:42:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 216428E0016; Mon, 24 Aug 2020 14:42:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0DD748E000A; Mon, 24 Aug 2020 14:42:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0075.hostedemail.com [216.40.44.75]) by kanga.kvack.org (Postfix) with ESMTP id EDDDD6B0002 for ; Mon, 24 Aug 2020 14:42:07 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id ABB378248047 for ; Mon, 24 Aug 2020 18:42:07 +0000 (UTC) X-FDA: 77186331894.08.root01_320356827055 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin08.hostedemail.com (Postfix) with ESMTP id 7FB061819E766 for ; Mon, 24 Aug 2020 18:42:07 +0000 (UTC) X-HE-Tag: root01_320356827055 X-Filterd-Recvd-Size: 2744 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf06.hostedemail.com (Postfix) with ESMTP for ; Mon, 24 Aug 2020 18:42:06 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 59D8F20866; Mon, 24 Aug 2020 18:42:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598294526; bh=Nd2awSgpg3NOzIIw5/W9KTQlYTFQWu5lPKGtd3+FdgI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=NOVxsxxfKZUuSkWhhaeTdPaLhuV4A66ePOhaJl3iuBe698JtvkFNo6oULxqlhRKP9 go5x9qm6wtG2ewR1N11GC7U8IRi2+zLl5jsMqJbl1fpfY+Ehcgt4iV8yyI/eb7Q/wE BKPTYrXANG2WV2orZF5CadUwCkVAyb6/6Ktcz9Hg= Date: Mon, 24 Aug 2020 11:42:04 -0700 From: Andrew Morton To: Alex Shi Cc: mgorman@techsingularity.net, tj@kernel.org, hughd@google.com, khlebnikov@yandex-team.ru, daniel.m.jordan@oracle.com, willy@infradead.org, hannes@cmpxchg.org, lkp@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, shakeelb@google.com, iamjoonsoo.kim@lge.com, richard.weiyang@gmail.com, kirill@shutemov.name, alexander.duyck@gmail.com, rong.a.chen@intel.com, mhocko@suse.com, vdavydov.dev@gmail.com, shy828301@gmail.com Subject: Re: [PATCH v18 00/32] per memcg lru_lock Message-Id: <20200824114204.cc796ca182db95809dd70a47@linux-foundation.org> In-Reply-To: <1598273705-69124-1-git-send-email-alex.shi@linux.alibaba.com> References: <1598273705-69124-1-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 7FB061819E766 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 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 Mon, 24 Aug 2020 20:54:33 +0800 Alex Shi wrote: > The new version which bases on v5.9-rc2. The first 6 patches was picked into > linux-mm, and add patch 25-32 that do some further post optimization. 32 patches, version 18. That's quite heroic. I'm unsure whether I should merge it up at this point - what do people think? > > Following Daniel Jordan's suggestion, I have run 208 'dd' with on 104 > containers on a 2s * 26cores * HT box with a modefied case: > https://git.kernel.org/pub/scm/linux/kernel/git/wfg/vm-scalability.git/tree/case-lru-file-readtwice > With this patchset, the readtwice performance increased about 80% > in concurrent containers. That's rather a slight amount of performance testing for a huge performance patchset! Is more detailed testing planned?