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[23.128.96.18]) by mx.google.com with ESMTP id i17si9353825ejo.16.2020.08.24.11.43.21; Mon, 24 Aug 2020 11:43:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=NOVxsxxf; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726788AbgHXSmH (ORCPT + 99 others); Mon, 24 Aug 2020 14:42:07 -0400 Received: from mail.kernel.org ([198.145.29.99]:44818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725998AbgHXSmG (ORCPT ); Mon, 24 Aug 2020 14:42:06 -0400 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 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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?