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{ "id": 52967, "url": "http://patches.dpdk.org/api/covers/52967/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/cover/20190419212138.17422-1-mattias.ronnblom@ericsson.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20190419212138.17422-1-mattias.ronnblom@ericsson.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20190419212138.17422-1-mattias.ronnblom@ericsson.com", "date": "2019-04-19T21:21:36", "name": "[RFC,v2,0/2] Pseudo-number generation improvements", "submitter": { "id": 1077, "url": "http://patches.dpdk.org/api/people/1077/?format=api", "name": "Mattias Rönnblom", "email": "mattias.ronnblom@ericsson.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/cover/20190419212138.17422-1-mattias.ronnblom@ericsson.com/mbox/", "series": [ { "id": 4404, "url": "http://patches.dpdk.org/api/series/4404/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=4404", "date": "2019-04-19T21:21:36", "name": "Pseudo-number generation improvements", "version": 2, "mbox": "http://patches.dpdk.org/series/4404/mbox/" } ], "comments": "http://patches.dpdk.org/api/covers/52967/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 8E4E01BBB4;\n\tFri, 19 Apr 2019 23:21:44 +0200 (CEST)", "from sesbmg22.ericsson.net (sesbmg22.ericsson.net [193.180.251.48])\n\tby dpdk.org (Postfix) with ESMTP id 8F5981B9F4\n\tfor <dev@dpdk.org>; Fri, 19 Apr 2019 23:21:42 +0200 (CEST)", "from ESESSMB505.ericsson.se (Unknown_Domain [153.88.183.123])\n\tby sesbmg22.ericsson.net (Symantec Mail Security) with SMTP id\n\t71.63.17481.6EB3ABC5; Fri, 19 Apr 2019 23:21:42 +0200 (CEST)", "from ESESBMR503.ericsson.se (153.88.183.135) by\n\tESESSMB505.ericsson.se (153.88.183.166) with Microsoft SMTP Server\n\t(version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id\n\t15.1.1713.5; Fri, 19 Apr 2019 23:21:41 +0200", "from ESESSMB503.ericsson.se (153.88.183.164) by\n\tESESBMR503.ericsson.se (153.88.183.135) with Microsoft SMTP Server\n\t(version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id\n\t15.1.1713.5; Fri, 19 Apr 2019 23:21:41 +0200", "from selio1a020.lmera.ericsson.se (153.88.183.153) by\n\tsmtp.internal.ericsson.com (153.88.183.191) with Microsoft SMTP\n\tServer id\n\t15.1.1713.5 via Frontend Transport; Fri, 19 Apr 2019 23:21:41 +0200", "from breslau.lmera.ericsson.se (breslau.lmera.ericsson.se\n\t[150.132.109.241])\n\tby selio1a020.lmera.ericsson.se (8.15.1+Sun/8.15.1) with ESMTP id\n\tx3JLLf27022797; Fri, 19 Apr 2019 23:21:41 +0200 (CEST)" ], "DKIM-Signature": "v=1; a=rsa-sha256; d=ericsson.com; s=mailgw201801;\n\tc=relaxed/relaxed; \n\tq=dns/txt; i=@ericsson.com; t=1555708902; x=1558300902;\n\th=From:Sender:Reply-To:Subject:Date:Message-ID:To:CC:MIME-Version:Content-Type:\n\tContent-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id:\n\tList-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;\n\tbh=T8Rc9NRHJ80xv0BtLMX0StkS+zuRc0Qg0rwvjqJy/xg=;\n\tb=StqANBYOU+z89vxEyjbpEyqncowxrx+4AGBHk4i4yCdFvhiYefz7QA2TS3WIuYWd\n\tKXAF7v68LrarFBN7TzgC81Pg1Q2/b3oD/XnMZR1E9bv49NuPCrAtO0l8TIvRelx3\n\tDa07glpXNL+yxySm1Pf2qcKVSRCPxARas2qMd5AqFsU=;", "X-AuditID": "c1b4fb30-c49ff70000004449-e8-5cba3be65f56", "From": "=?utf-8?q?Mattias_R=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>", "To": "<dev@dpdk.org>", "CC": "<stephen@networkplumber.org>, =?utf-8?q?Mattias_R=C3=B6nnblom?=\n\t<mattias.ronnblom@ericsson.com>", "Date": "Fri, 19 Apr 2019 23:21:36 +0200", "Message-ID": "<20190419212138.17422-1-mattias.ronnblom@ericsson.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20190408123029.6701-1-mattias.ronnblom@ericsson.com>", "References": "<20190408123029.6701-1-mattias.ronnblom@ericsson.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-Brightmail-Tracker": "H4sIAAAAAAAAA+NgFrrBLMWRmVeSWpSXmKPExsUyM2J7te4z610xBm+XM1q8+7SdyWLxHTkH\n\tJo9fC5ayevScnMcUwBTFZZOSmpNZllqkb5fAlfH1yQK2gm0cFQePn2FsYDzJ1sXIwSEhYCKx\n\t+21FFyMXh5DAUUaJBcuOsUI43xgl5h5dzdTFyAnhHJkQCWFfZJS4dcEDougyo8SBD7tZQBJs\n\tAp4Sk991g9kiAkISSz9eZgexmQXSJTae7gQbJCxgLXFq3ho2EJtFQFVi7rW7zCA2r4CTxN3d\n\te8HqJQTkJVZvOAAW5wSKN56+yAyx2FGif/kbFoh6QYmTM5+wQMzXlGjd/htql7xE89bZUPVa\n\tEveXfGGewCg8C0nLLCQts5C0LGBkXsUoWpxanJSbbmSkl1qUmVxcnJ+nl5dasokRGN4Ht/w2\n\t2MH48rnjIUYBDkYlHt4etV0xQqyJZcWVuYcYJTiYlUR4HVO2xAjxpiRWVqUW5ccXleakFh9i\n\tlOZgURLn/SMkGCMkkJ5YkpqdmlqQWgSTZeLglGpgzN2b8U/Oquqgx5tG0UZbixy/WJcaIa4r\n\t0tovU6V2HJ0uzb1hm1blzTXCZS4hnWwHvBSt0/i/hB2urjZJ8/VxmJ8n0KtXp6S0brnp3MkB\n\tE0++mBMfydm/LMB3hf+UQ5NjDJhqC3cHFy65I26z/f4+2y16ev2T+VSju/7NmLMvedrFVMYZ\n\tSg1KLMUZiYZazEXFiQAjsg1XawIAAA==", "Subject": "[dpdk-dev] [RFC v2 0/2] Pseudo-number generation improvements", "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>,\n\t<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>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Make rte_rand() multi-thread safe, go faster and produce\nbetter-quality pseudo-random numbers.\n\nv2:\n* Removed 32-bit version of rte_rand() and rte_rand_max().\n* Switched from a four-sequence LFSR (producing a 32-bit number)\n to a five-sequence LFSR (producing a 64-bit number).\n* Added a note on generator not being cryptographically secure.\n\nMattias Rönnblom (2):\n eal: replace libc-based random number generation with LFSR\n eal: introduce random generator function with upper bound\n\n lib/librte_eal/common/include/rte_random.h | 45 +++---\n lib/librte_eal/common/meson.build | 1 +\n lib/librte_eal/common/rte_random.c | 157 +++++++++++++++++++++\n lib/librte_eal/freebsd/eal/Makefile | 1 +\n lib/librte_eal/freebsd/eal/eal.c | 2 -\n lib/librte_eal/linux/eal/Makefile | 1 +\n lib/librte_eal/linux/eal/eal.c | 2 -\n lib/librte_eal/rte_eal_version.map | 3 +\n 8 files changed, 190 insertions(+), 22 deletions(-)\n create mode 100644 lib/librte_eal/common/rte_random.c" }