Received: by 2002:a25:86ce:0:0:0:0:0 with SMTP id y14csp346530ybm; Mon, 20 May 2019 17:40:52 -0700 (PDT) X-Google-Smtp-Source: APXvYqyg3yvSbqp7caXen0vkCBchdJAgmHrsr0wCiK+E2tOS5K+7X0hn80FDUILOm1WDRjaCrsMl X-Received: by 2002:a17:902:4a:: with SMTP id 68mr80295755pla.235.1558399251961; Mon, 20 May 2019 17:40:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558399251; cv=none; d=google.com; s=arc-20160816; b=RYUYIHRk32BYmMBeOEsl/umaCKYiH5u3FUhberdq66OJwypl2jkTv8SuNEyyFE6vF+ fFrwui0YJxDS/4wPbQOonCf2fHQwSDZzet2L2l9DD9Dvhf3BIT0JIowa7I9DuIWyoCr7 T6F6t7K5KwrA1WN3rChvYEOrQpwrh7jEuZuGfGzQkt3mTIpEnzZSJvkOPX1DJc7GUhKd w6x16dNyilPkYlyb91cbwrMZE2U3MhTdwcJszp7DIPkkDekRCDps76bqM2jsdoF2JEHN Ymc5+JP0XPIl3VONjel7AJDAFrHjXWRFuOoF1HCdhq8j3gjc3bmhmYVEWqVOuhSt0gyh gFLw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature:dkim-signature; bh=E3+cLSVQNP4p25wZAs7M154LsdZMQ5nxvcwFvwkF7vA=; b=JpOuZp8H0EDTuGflpT4WWHNiMbEwPsBTmIOK/bz0hyBlUsGUdlooLIxq78IpsPp+/M afNCkFyO7SuH26IZtxFIAtRgDshCzEi0sLrYo5P/lo9OJQbv6oLUoeawUQRTJVj0b2gj vrNu8repuM1EkLWgVQKm3G5/6QtVRUB3ieBxTK56a9ffofnzDIwXaGJxuw2945bKnDIu WTbEtF+Cb8aNd8KmpA0YwQargYYYyrMkyXL8q+cxaW/daOBPCAh1O8VAM2/mGU62qvPF sAiXdjmVhcRLaMEizjWcEcOLtnZJgbZQ6THYyFw8sLH0p0RcJUMVNyPNAIEbY0O63QAX fN2Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b=VYSChcHG; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector1-fb-onmicrosoft-com header.b=Lpxvp1lM; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=fb.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o20si18905927pgm.94.2019.05.20.17.40.37; Mon, 20 May 2019 17:40:51 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@fb.com header.s=facebook header.b=VYSChcHG; dkim=pass header.i=@fb.onmicrosoft.com header.s=selector1-fb-onmicrosoft-com header.b=Lpxvp1lM; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=fb.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727448AbfEUAjY (ORCPT + 99 others); Mon, 20 May 2019 20:39:24 -0400 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:54240 "EHLO mx0b-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726586AbfEUAjY (ORCPT ); Mon, 20 May 2019 20:39:24 -0400 Received: from pps.filterd (m0109331.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4L0S56l028300; Mon, 20 May 2019 17:38:45 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=facebook; bh=E3+cLSVQNP4p25wZAs7M154LsdZMQ5nxvcwFvwkF7vA=; b=VYSChcHGvoes0aoHcuoyIWkJa98s0Lw6pyTkZms7n4RKfOV8ThxKfoTSR1NLZnjwHuA7 4FH3nhtzfrCG4/NDm1MIakVc68YqpIROcUIXOmsdtabEFXzdLitGSMUtODonzFAuvtkK M3DQTdxuZyil9qiekFKPBfewi9OhnqAI5MI= Received: from mail.thefacebook.com (mailout.thefacebook.com [199.201.64.23]) by mx0a-00082601.pphosted.com with ESMTP id 2skusdtf1h-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 20 May 2019 17:38:45 -0700 Received: from prn-hub05.TheFacebook.com (2620:10d:c081:35::129) by prn-hub06.TheFacebook.com (2620:10d:c081:35::130) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5; Mon, 20 May 2019 17:38:44 -0700 Received: from NAM03-BY2-obe.outbound.protection.outlook.com (192.168.54.28) by o365-in.thefacebook.com (192.168.16.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.1.1713.5 via Frontend Transport; Mon, 20 May 2019 17:38:44 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector1-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=E3+cLSVQNP4p25wZAs7M154LsdZMQ5nxvcwFvwkF7vA=; b=Lpxvp1lM86qlDs6r95jZcMFZ0d8iGkyYmH7giaFCbaBKGAWOyaOX7NhJh2hyXLvNGr11y5TPa8cFfg2eXB7HfOjc+7qQqaVhd8/a+wIKRHkGZutgy7QjG3o8QMVdOa2DDbjtTG44I47V4m6AcfYAhRAsX3o1gq8ZWcxJfj853EA= Received: from BYAPR15MB2631.namprd15.prod.outlook.com (20.179.156.24) by BYAPR15MB3030.namprd15.prod.outlook.com (20.178.238.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1900.17; Tue, 21 May 2019 00:38:40 +0000 Received: from BYAPR15MB2631.namprd15.prod.outlook.com ([fe80::d4f6:b485:69ee:fd9a]) by BYAPR15MB2631.namprd15.prod.outlook.com ([fe80::d4f6:b485:69ee:fd9a%7]) with mapi id 15.20.1900.020; Tue, 21 May 2019 00:38:40 +0000 From: Roman Gushchin To: "Tobin C. Harding" CC: Andrew Morton , Matthew Wilcox , Alexander Viro , "Christoph Hellwig" , Pekka Enberg , "David Rientjes" , Joonsoo Kim , Christopher Lameter , Miklos Szeredi , Andreas Dilger , Waiman Long , "Tycho Andersen" , Theodore Ts'o , Andi Kleen , David Chinner , Nick Piggin , Rik van Riel , Hugh Dickins , Jonathan Corbet , "linux-mm@kvack.org" , "linux-fsdevel@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [RFC PATCH v5 03/16] slub: Sort slab cache list Thread-Topic: [RFC PATCH v5 03/16] slub: Sort slab cache list Thread-Index: AQHVDs62IV4Zydo66E+iHqIO5Pdo5qZ0vW8A Date: Tue, 21 May 2019 00:38:40 +0000 Message-ID: <20190521003835.GB21811@tower.DHCP.thefacebook.com> References: <20190520054017.32299-1-tobin@kernel.org> <20190520054017.32299-4-tobin@kernel.org> In-Reply-To: <20190520054017.32299-4-tobin@kernel.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR14CA0005.namprd14.prod.outlook.com (2603:10b6:300:ae::15) To BYAPR15MB2631.namprd15.prod.outlook.com (2603:10b6:a03:152::24) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [2620:10d:c090:200::3:a985] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 70c0967b-98c8-44cd-25cf-08d6dd84ab7c x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(2017052603328)(7193020);SRVR:BYAPR15MB3030; x-ms-traffictypediagnostic: BYAPR15MB3030: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2887; x-forefront-prvs: 0044C17179 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(366004)(136003)(39860400002)(376002)(346002)(396003)(199004)(189003)(6116002)(7736002)(8676002)(81166006)(81156014)(4326008)(66946007)(73956011)(64756008)(186003)(66476007)(66556008)(68736007)(66446008)(6436002)(53936002)(9686003)(6486002)(6246003)(99286004)(6512007)(7416002)(305945005)(446003)(316002)(6916009)(8936002)(46003)(102836004)(229853002)(76176011)(54906003)(52116002)(486006)(25786009)(476003)(2906002)(11346002)(33656002)(386003)(6506007)(14454004)(256004)(71200400001)(86362001)(71190400001)(478600001)(1076003)(5660300002)(4744005);DIR:OUT;SFP:1102;SCL:1;SRVR:BYAPR15MB3030;H:BYAPR15MB2631.namprd15.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: fb.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 4s+SYJPSmiJ7nXYS5W4A3hnVp7aVbFPYyJbjP1TFSqIoKDGJQgHciWYFBrFvNzAUgySmic9Mv2MTMg0OLmiX8cNilaXRRmzYCnc09FqqhZH+ONyDzTSHnsjRoDkYirOUepqEdIGj2LmxYw6ngRqMU8nH6nV+luREC7o55arAdrMnqG5QLm7/9OGXX/EMqcV6HV+QJons4uiGp9Vgm+7BIH7jvfV9svnHD3bmg1dwTTuQhnxstF+YXvzEnJ8lFuNzLnzh4+M8elynSCGoHe7t43wRrnahpsL+ctMjIr4uTDaHWLA/lrvLJmG2cjkLq+8V1CSAgpl/bhj4ldGgsDe5eEItXoM+fWIlIPxws27p7q6ryj9Eq5G5nviPUQ8+eEJvYOShEMPyTiSQVkpVmVbskqxw6qp1KdK1dxW3nJ41JIQ= Content-Type: text/plain; charset="us-ascii" Content-ID: <7DA0F6E4E77DF64B87BF2DF516986776@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 70c0967b-98c8-44cd-25cf-08d6dd84ab7c X-MS-Exchange-CrossTenant-originalarrivaltime: 21 May 2019 00:38:40.5953 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR15MB3030 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-20_09:,, signatures=0 X-Proofpoint-Spam-Reason: safe X-FB-Internal: Safe Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 20, 2019 at 03:40:04PM +1000, Tobin C. Harding wrote: > It is advantageous to have all defragmentable slabs together at the > beginning of the list of slabs so that there is no need to scan the > complete list. Put defragmentable caches first when adding a slab cache > and others last. >=20 > Co-developed-by: Christoph Lameter > Signed-off-by: Tobin C. Harding Reviewed-by: Roman Gushchin