From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 4DA0FA034F; Wed, 13 May 2020 10:55:14 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 2667F1D426; Wed, 13 May 2020 10:55:14 +0200 (CEST) Received: from EUR04-VI1-obe.outbound.protection.outlook.com (mail-eopbgr80044.outbound.protection.outlook.com [40.107.8.44]) by dpdk.org (Postfix) with ESMTP id 081D51D183 for ; Wed, 13 May 2020 10:55:13 +0200 (CEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RcARdEtbn98EKgEdllTa56bTOhy028xccrjhVOQ39ISJ//bYinRZwBNxbYinUJfCIwN2pJojMF7w9IisXV/78R8iklxJwKpJXkV84x+n4BmCHnZFm/9sVlCzhwhkQpmiIrqAma91eNyaSNbIIO3gBgAV/b5qh139qyzL7Xf/M52lCVFtdFK7NOWKvoPVYKVlauoxo9ONIN22tg4eMk45NBUL/HeRfGuLCVSt0nnZZdLu1hrx7hQqlqxJMYwyV6Qs+F5phDDlUPpr3HPla5p1yV+WjlyLniRkp/STyxBmmWMUeTpwDzebYNvrJj/ubov6VlTXPQvPT9nMi1Ie0H1BLQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lmHidNCTCarJXWXgsVB+cXVC7TLRtaa8ty+4KwFrMc4=; b=MNbezRlxuKaxzC1WSLoPww4/8T5F3NF+9ZvxYe6XHwrng4loomuq33dDEhxT8wQimusyu3DyOD7gKkKwaDH+hetFnu9PYGo1aH6inshmaXukcska8eKZI6UJ/w+i/p5DkxPGVJUM1ZwuWdzJDEMDmLk0IDwirlhS2YZJtPchTvUuGYWy1s8MkNRexlYmWnpteFUxEHyGElMUnTtWQ/Q90ROl+qEpsqVnn5chO3BiyLxq+w0RSHI2DiogwpDggWInqXG6eccfiYWVuU6MQL2gMe/dLVYSrY2iwilR6VsQBMabi+3hSepTFTsX9257+N/R5E9rTE8UlEtK5qHPxhAc7Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=mellanox.com; dmarc=pass action=none header.from=mellanox.com; dkim=pass header.d=mellanox.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=lmHidNCTCarJXWXgsVB+cXVC7TLRtaa8ty+4KwFrMc4=; b=gmLeJXAwI4b0pYZtoX/HW6MzkmkVdA5/ZZIc0LoxcodqTUIOTaiE3g5GHC8AF8ev1r8Zgq0SRuvKG6bl3dv7U7Jp2TX1WLjDy0wl7j+UP4FRrzFg4DywdL/Xu+BNQczJzb8uu8b7M7GbTIRwHb42fBD1plm6Yk7WaNNQ29E/blI= Received: from AM0PR05MB5313.eurprd05.prod.outlook.com (2603:10a6:208:f2::28) by AM0PR05MB5826.eurprd05.prod.outlook.com (2603:10a6:208:120::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2979.33; Wed, 13 May 2020 08:55:12 +0000 Received: from AM0PR05MB5313.eurprd05.prod.outlook.com ([fe80::3069:d8f4:fadc:4d7]) by AM0PR05MB5313.eurprd05.prod.outlook.com ([fe80::3069:d8f4:fadc:4d7%5]) with mapi id 15.20.2979.033; Wed, 13 May 2020 08:55:12 +0000 From: Tal Shnaiderman To: Dmitry Kozlyuk CC: Thomas Monjalon , "pallavi.kadam@intel.com" , "navasile@linux.microsoft.com" , "ranjit.menon@intel.com" , "harini.ramakrishnan@microsoft.com" , "ocardona@microsoft.com" , "Dmitry Malloy (MESHCHANINOV)" , Yohad Tor , "dev@dpdk.org" Thread-Topic: rte_mbuf structure size in Windows Thread-Index: AdYo+zM/RnLiCwnzR0mr81TSHf2mvAABkfKAAACD7uA= Date: Wed, 13 May 2020 08:55:11 +0000 Message-ID: References: <20200513113539.226b1a58@sovereign> In-Reply-To: <20200513113539.226b1a58@sovereign> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=mellanox.com; x-originating-ip: [37.142.1.17] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 3ad3b571-793d-4e8f-c896-08d7f71b58bd x-ms-traffictypediagnostic: AM0PR05MB5826:|AM0PR05MB5826: x-ld-processed: a652971c-7d2e-4d9b-a6a4-d149256f461b,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-forefront-prvs: 0402872DA1 x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM0PR05MB5313.eurprd05.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(346002)(366004)(376002)(396003)(39860400002)(136003)(33430700001)(66556008)(64756008)(45080400002)(7696005)(55016002)(54906003)(33656002)(9686003)(4326008)(966005)(6506007)(186003)(86362001)(26005)(66476007)(478600001)(66446008)(76116006)(8676002)(66946007)(6916009)(5660300002)(52536014)(2906002)(8936002)(71200400001)(33440700001)(316002); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata: KiZm8Ehh0fujRK3mvvpqoUZFXoDM4Q7ZAViJuwoqr9roiNutqin5zyUqHfAzV/eea3z5iRLDNaq0GJk2H8d1Oyp4qpqf93JuOrWGdkP5OsA2tizP066557KWJDjr1DsSwXcRAxeEimihCUWyL0TclNSu2buaMRTB3Ux+kUQDFtiCNfjqm74gPUYIhmW3ldmt+I7VFB95CLshPQid+2mFS/KNP10o6brvZFvKmj7vswg17veTUMH715eDlzzjEvIBcfcrluL90U7QQ8dZPUJbkb//ubF455C/Icgc0TNug1zevsf3ZrghMaJHpHTZAsJ//W0VQKxsoFQRIeX0q+oCZ+Q3AwCcU7lBcG6np+Zx7+fTWe2y+RuyIQKboFDiBG/tuE9vD9SJP5rMGf5OBfO1Ge8Ovx5GbatKG+QItqscOGuoQfWspq/mAkzd0v/WaJ2SxeKv3GqDCKsAtRydA+/8JdT9lYqfiQJPFCZcq42IerQ= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3ad3b571-793d-4e8f-c896-08d7f71b58bd X-MS-Exchange-CrossTenant-originalarrivaltime: 13 May 2020 08:55:12.0115 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 6Jk70zVeG2rcmWaGEqwsx3Ssm52XJogM8Qk1eMzZ6J3vxzQBkO4ZTWBR41hUHoNrtqHdx5+xR65UXGal7cIxgQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR05MB5826 Subject: Re: [dpdk-dev] rte_mbuf structure size in Windows X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > Subject: Re: rte_mbuf structure size in Windows >=20 > Hi, >=20 > This is the issue we were talking about from the beginning of year. Micro= soft > was supposed to track the bug and allocate resources to fix it if possibl= e. On > the last community call, Naty and Omar claimed there is no noticeable > performance impact with l2fwd if mbuf spans 3 cache lines, but DmitryM > commented this may depend on cache utilization. >=20 > For GCC, the following workaround exists: >=20 > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F% > 2Fgithub.com%2FPlushBeaver%2Fdpdk%2Fcommit%2F37f052cb18d1d5d4258 > 18196d5e1d15a7ada0de0&data=3D02%7C01%7Ctalshn%40mellanox.com% > 7Ca5df987ffdff439a4ea608d7f7189f62%7Ca652971c7d2e4d9ba6a4d149256f46 > 1b%7C0%7C0%7C637249557444653368&sdata=3DdkaDS7%2FM%2BvOwgx > RVjfRsGkAO66rGhRCAHUHzybpOxYY%3D&reserved=3D0 Thank you Dmitry, do we plan to push this WO or stay with 3 cache lines uni= formly on Windows builds until the clang bug is resolved? (I'm out of the loop regarding this issue).=20 >=20 > No workaround for Clang is known, bug URL: >=20 > https://eur03.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F% > 2Fbugs.llvm.org%2Fshow_bug.cgi%3Fid%3D24383&data=3D02%7C01%7Ct > alshn%40mellanox.com%7Ca5df987ffdff439a4ea608d7f7189f62%7Ca652971c > 7d2e4d9ba6a4d149256f461b%7C0%7C0%7C637249557444653368&sdata > =3DXJnc7Q%2BTRt%2F2TyPEOl3uO2cXhdCFzArbvreDak65DJw%3D&reserv > ed=3D0 >=20 > -- > Dmitry Kozlyuk