From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id E7ADE1041 for ; Wed, 16 Jan 2019 13:44:51 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Jan 2019 04:44:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,486,1539673200"; d="scan'208";a="291990860" Received: from irsmsx107.ger.corp.intel.com ([163.33.3.99]) by orsmga005.jf.intel.com with ESMTP; 16 Jan 2019 04:44:48 -0800 Received: from irsmsx112.ger.corp.intel.com (10.108.20.5) by IRSMSX107.ger.corp.intel.com (163.33.3.99) with Microsoft SMTP Server (TLS) id 14.3.408.0; Wed, 16 Jan 2019 12:44:47 +0000 Received: from irsmsx101.ger.corp.intel.com ([169.254.1.213]) by irsmsx112.ger.corp.intel.com ([169.254.1.84]) with mapi id 14.03.0415.000; Wed, 16 Jan 2019 12:44:47 +0000 From: "Trahe, Fiona" To: Shally Verma , "De Lara Guarch, Pablo" , "Verma, Shally" , Stephen Hemminger CC: "dev@dpdk.org" , "akhil.goyal@nxp.com" , "Jozwiak, TomaszX" , "Gupta, Ashish" , "Daly, Lee" , "Luse, Paul E" , Anoob Joseph , Tejasree Kondoj , "Trahe, Fiona" Thread-Topic: [dpdk-dev] [PATCH] compressdev: add feature flag to specify where processing is done Thread-Index: AQHUgHH0iBHC0Frsi0+jiJBhoUExD6VX5t6AgADy5OCAAB0HgIArxwTwgAD9/YCAALx38IAisHqAgAjxvACAAAHasIAAC4KAgAAHO7A= Date: Wed, 16 Jan 2019 12:44:47 +0000 Message-ID: <348A99DA5F5B7549AA880327E580B435896CB085@IRSMSX101.ger.corp.intel.com> References: <1542677988-3876-1-git-send-email-fiona.trahe@intel.com> <20181119175349.2bd2fdd1@xeon-e3> <348A99DA5F5B7549AA880327E580B4358967C84F@IRSMSX101.ger.corp.intel.com> <20181120100703.34c462e9@xeon-e3> <348A99DA5F5B7549AA880327E580B435896A4B55@IRSMSX101.ger.corp.intel.com> <348A99DA5F5B7549AA880327E580B435896A5DB3@IRSMSX101.ger.corp.intel.com> <348A99DA5F5B7549AA880327E580B435896CAF10@IRSMSX101.ger.corp.intel.com> In-Reply-To: Accept-Language: en-IE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiNTIzZmI3MmUtN2UxNy00YTRhLWJlNDAtNDRkMWU5MjE0OTQxIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoid1BuZnFtR0R0U3NCXC9kUGt6OUxwTXBkRVhcLzc0WnpKMUQ2NGZWZlJiYTk4ZW4yMnhIMHVKOHBKSmYxZ3hseHFPIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [163.33.239.181] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH] compressdev: add feature flag to specify where processing is done 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: , X-List-Received-Date: Wed, 16 Jan 2019 12:44:52 -0000 Hi Shally, > So, would like to understand it bit more on how flag would help app to tu= ne itself as per current given > description? > For example, if PMD says, It does actual processing in dequeue, then how = it will impact app design for > better performance? [Fiona] One example: It could enqueue a large burst, say 32 ops. Then if it= tried to dequeue 32 ops that could be a very long blocking call. So instead it could choose to dequeue 8= at a time. Vice versa if work done in enqueue.