From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id B9DB5A00E6 for <public@inbox.dpdk.org>; Tue, 14 May 2019 11:42:06 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id CE4E75F1B; Tue, 14 May 2019 11:42:05 +0200 (CEST) Received: from relay0161.mxlogin.com (relay0161.mxlogin.com [199.181.239.161]) by dpdk.org (Postfix) with ESMTP id C7AAC5B40; Tue, 14 May 2019 11:42:03 +0200 (CEST) Received: from filter002.mxroute.com (unknown [116.203.155.46]) by relay0161.mxlogin.com (Postfix) with ESMTP id C1164CC50320; Tue, 14 May 2019 04:42:02 -0500 (CDT) Received: from localhost (unknown [23.92.70.113]) by filter002.mxroute.com (Postfix) with ESMTPS id DDCD63F0CC; Tue, 14 May 2019 09:42:01 +0000 (UTC) Received: from [192.55.54.44] by localhost with esmtpsa (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.91) (envelope-from <mdr@ashroe.eu>) id 1hQTxP-0007em-Gf; Tue, 14 May 2019 05:42:47 -0400 To: Thomas Monjalon <thomas@monjalon.net>, techboard@dpdk.org Cc: Bruce Richardson <bruce.richardson@intel.com>, Billy McFall <bmcfall@redhat.com>, Thomas F Herbert <therbert@redhat.com>, dpdk-dev <dev@dpdk.org>, Luca Boccassi <luca.boccassi@gmail.com>, ndas@suse.de, Christian Ehrhardt <christian.ehrhardt@canonical.com>, "Stokes, Ian" <ian.stokes@intel.com> References: <80c4f1df-da68-520e-d47d-b4ccaeedb69f@ashroe.eu> <20190510134333.GA87@bricha3-MOBL.ger.corp.intel.com> <2098214.X7U14xP0QZ@xps> From: Ray Kinsella <mdr@ashroe.eu> Openpgp: preference=signencrypt Autocrypt: addr=mdr@ashroe.eu; keydata= mQINBFv8B3wBEAC+5ImcgbIvadt3axrTnt7Sxch3FsmWTTomXfB8YiuHT8KL8L/bFRQSL1f6 ASCHu3M89EjYazlY+vJUWLr0BhK5t/YI7bQzrOuYrl9K94vlLwzD19s/zB/g5YGGR5plJr0s JtJsFGEvF9LL3e+FKMRXveQxBB8A51nAHfwG0WSyx53d61DYz7lp4/Y4RagxaJoHp9lakn8j HV2N6rrnF+qt5ukj5SbbKWSzGg5HQF2t0QQ5tzWhCAKTfcPlnP0GymTBfNMGOReWivi3Qqzr S51Xo7hoGujUgNAM41sxpxmhx8xSwcQ5WzmxgAhJ/StNV9cb3HWIoE5StCwQ4uXOLplZNGnS uxNdegvKB95NHZjRVRChg/uMTGpg9PqYbTIFoPXjuk27sxZLRJRrueg4tLbb3HM39CJwSB++ YICcqf2N+GVD48STfcIlpp12/HI+EcDSThzfWFhaHDC0hyirHxJyHXjnZ8bUexI/5zATn/ux TpMbc/vicJxeN+qfaVqPkCbkS71cHKuPluM3jE8aNCIBNQY1/j87k5ELzg3qaesLo2n1krBH bKvFfAmQuUuJT84/IqfdVtrSCTabvDuNBDpYBV0dGbTwaRfE7i+LiJJclUr8lOvHUpJ4Y6a5 0cxEPxm498G12Z3NoY/mP5soItPIPtLR0rA0fage44zSPwp6cQARAQABtBxSYXkgS2luc2Vs bGEgPG1kckBhc2hyb2UuZXU+iQJUBBMBCAA+FiEEcDUDlKDJaDuJlfZfdJdaH/sCCpsFAlv8 B3wCGyMFCQlmAYAFCwkIBwIGFQoJCAsCBBYCAwECHgECF4AACgkQdJdaH/sCCptdtRAAl0oE msa+djBVYLIsax+0f8acidtWg2l9f7kc2hEjp9h9aZCpPchQvhhemtew/nKavik3RSnLTAyn B3C/0GNlmvI1l5PFROOgPZwz4xhJKGN7jOsRrbkJa23a8ly5UXwF3Vqnlny7D3z+7cu1qq/f VRK8qFyWkAb+xgqeZ/hTcbJUWtW+l5Zb+68WGEp8hB7TuJLEWb4+VKgHTpQ4vElYj8H3Z94a 04s2PJMbLIZSgmKDASnyrKY0CzTpPXx5rSJ1q+B1FCsfepHLqt3vKSALa3ld6bJ8fSJtDUJ7 JLiU8dFZrywgDIVme01jPbjJtUScW6jONLvhI8Z2sheR71UoKqGomMHNQpZ03ViVWBEALzEt TcjWgJFn8yAmxqM4nBnZ+hE3LbMo34KCHJD4eg18ojDt3s9VrDLa+V9fNxUHPSib9FD9UX/1 +nGfU/ZABmiTuUDM7WZdXri7HaMpzDRJUKI6b+/uunF8xH/h/MHW16VuMzgI5dkOKKv1LejD dT5mA4R+2zBS+GsM0oa2hUeX9E5WwjaDzXtVDg6kYq8YvEd+m0z3M4e6diFeLS77/sAOgaYL 92UcoKD+Beym/fVuC6/55a0e12ksTmgk5/ZoEdoNQLlVgd2INtvnO+0k5BJcn66ZjKn3GbEC VqFbrnv1GnA58nEInRCTzR1k26h9nmS5Ag0EW/wHfAEQAMth1vHr3fOZkVOPfod3M6DkQir5 xJvUW5EHgYUjYCPIa2qzgIVVuLDqZgSCCinyooG5dUJONVHj3nCbITCpJp4eB3PI84RPfDcC hf/V34N/Gx5mTeoymSZDBmXT8YtvV/uJvn+LvHLO4ZJdvq5ZxmDyxfXFmkm3/lLw0+rrNdK5 pt6OnVlCqEU9tcDBezjUwDtOahyV20XqxtUttN4kQWbDRkhT+HrA9WN9l2HX91yEYC+zmF1S OhBqRoTPLrR6g4sCWgFywqztpvZWhyIicJipnjac7qL/wRS+wrWfsYy6qWLIV80beN7yoa6v ccnuy4pu2uiuhk9/edtlmFE4dNdoRf7843CV9k1yRASTlmPkU59n0TJbw+okTa9fbbQgbIb1 pWsAuicRHyLUIUz4f6kPgdgty2FgTKuPuIzJd1s8s6p2aC1qo+Obm2gnBTduB+/n1Jw+vKpt 07d+CKEKu4CWwvZZ8ktJJLeofi4hMupTYiq+oMzqH+V1k6QgNm0Da489gXllU+3EFC6W1qKj tkvQzg2rYoWeYD1Qn8iXcO4Fpk6wzylclvatBMddVlQ6qrYeTmSbCsk+m2KVrz5vIyja0o5Y yfeN29s9emXnikmNfv/dA5fpi8XCANNnz3zOfA93DOB9DBf0TQ2/OrSPGjB3op7RCfoPBZ7u AjJ9dM7VABEBAAGJAjwEGAEIACYWIQRwNQOUoMloO4mV9l90l1of+wIKmwUCW/wHfAIbDAUJ CWYBgAAKCRB0l1of+wIKm3KlD/9w/LOG5rtgtCUWPl4B3pZvGpNym6XdK8cop9saOnE85zWf u+sKWCrxNgYkYP7aZrYMPwqDvilxhbTsIJl5HhPgpTO1b0i+c0n1Tij3EElj5UCg3q8mEc17 c+5jRrY3oz77g7E3oPftAjaq1ybbXjY4K32o3JHFR6I8wX3m9wJZJe1+Y+UVrrjY65gZFxcA thNVnWKErarVQGjeNgHV4N1uF3pIx3kT1N4GSnxhoz4Bki91kvkbBhUgYfNflGURfZT3wIKK +d50jd7kqRouXUCzTdzmDh7jnYrcEFM4nvyaYu0JjSS5R672d9SK5LVIfWmoUGzqD4AVmUW8 pcv461+PXchuS8+zpltR9zajl72Q3ymlT4BTAQOlCWkD0snBoKNUB5d2EXPNV13nA0qlm4U2 GpROfJMQXjV6fyYRvttKYfM5xYKgRgtP0z5lTAbsjg9WFKq0Fndh7kUlmHjuAIwKIV4Tzo75 QO2zC0/NTaTjmrtiXhP+vkC4pcrOGNsbHuaqvsc/ZZ0siXyYsqbctj/sCd8ka2r94u+c7o4l BGaAm+FtwAfEAkXHu4y5Phuv2IRR+x1wTey1U1RaEPgN8xq0LQ1OitX4t2mQwjdPihZQBCnZ wzOrkbzlJMNrMKJpEgulmxAHmYJKgvZHXZXtLJSejFjR0GdHJcL5rwVOMWB8cg== Message-ID: <8aa77d10-54c1-4f09-102d-23714f59d65c@ashroe.eu> Date: Tue, 14 May 2019 10:41:50 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <2098214.X7U14xP0QZ@xps> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 8bit X-AuthUser: mdr@ashroe.eu Subject: Re: [dpdk-dev] [dpdk-techboard] Discussion on the OS Packaging of DPDK X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> Message-ID: <20190514094150.ckLrYi7g-S6Y30I7B8WVgDonEITbY0_aVefwdhN1X-0@z> On 10/05/2019 19:43, Thomas Monjalon wrote: > 10/05/2019 15:43, Bruce Richardson: >> On Fri, May 10, 2019 at 02:01:54PM +0100, Ray Kinsella wrote: >>> ( from the undersigned ) >>> <SNIP> >> To a certain extent, this only applies with the "make" build system, which >> is due to be deprecated in the next release and removed sometime next year. >> With builds done with meson and ninja, both shared and static libraries are >> always built. The default setting though remains as "static" which applies >> only to the linking of applications as part of the DPDK build. This default >> was set mainly for legacy purposes, but also has benefits for us developers >> working on DPDK, since we don't need to worry about setting LD_LIBRARY_PATH >> and EAL_PMD_PATH values for running applications we've built. Therefore, >> I'm not sure of the value of changing the default here - it's certainly >> less important than the default in the "make" build system where only one >> library type at a time was built. > > Yes no need to change the default. > If you build DPDK yourself, it is more convenient to use static libs. > If you want something easier to update, you probably use > the packages from distributions which are shared libraries. Well I disagree a bit. I understand 100% that we don't want to break the developer experience. My concern is that developers end using something different then, that what the DPDK consumers are using - this always ends up being a hiding place for bugs. It might be worthwhile seeing if we could resolve this in another way, either with RPATH or EAL_PMD_PATH change. > >>> * Future guarantees around ABI/API stability should be provided, so that >>> OS packagers can offer safe upgrade paths for consuming applications. > > DPDK is a set of libraries, some more stable than others. > If we cannot guarantee a full stability for a long time, > we may have some changes here and there sometimes. > And it's even worst with experimental functions. > I think it is more realistic to provide a level of stability > per DPDK library. In order to leverage such fine grained stability, > the libraries should be packaged separately in the OS. > Then the applications relying only on stable libraries will be able > to link with updated libraries without any change or re-compilation. > > >