Cover Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 695,
    "url": "http://patchwork.dpdk.org/api/covers/695/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/20240223132701.2872066-1-yoan.picchi@arm.com/",
    "project": {
        "id": 1,
        "url": "http://patchwork.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": "<20240223132701.2872066-1-yoan.picchi@arm.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20240223132701.2872066-1-yoan.picchi@arm.com",
    "date": "2024-02-23T13:26:57",
    "name": "[v4,0/4] hash: add SVE support for bulk key lookup",
    "submitter": {
        "id": 3196,
        "url": "http://patchwork.dpdk.org/api/people/3196/?format=api",
        "name": "Yoan Picchi",
        "email": "yoan.picchi@arm.com"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/20240223132701.2872066-1-yoan.picchi@arm.com/mbox/",
    "series": [
        {
            "id": 31235,
            "url": "http://patchwork.dpdk.org/api/series/31235/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=31235",
            "date": "2024-02-23T13:26:57",
            "name": "hash: add SVE support for bulk key lookup",
            "version": 4,
            "mbox": "http://patchwork.dpdk.org/series/31235/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/covers/695/comments/",
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Received": [
            "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id CCAF943C03;\n\tTue, 27 Feb 2024 07:02:42 +0100 (CET)",
            "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id E1C1E42E6F;\n\tTue, 27 Feb 2024 07:02:32 +0100 (CET)",
            "from foss.arm.com (foss.arm.com [217.140.110.172])\n by mails.dpdk.org (Postfix) with ESMTP id 95FB84021E\n for <dev@dpdk.org>; Fri, 23 Feb 2024 14:27:13 +0100 (CET)",
            "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14])\n by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A55D8DA7;\n Fri, 23 Feb 2024 05:27:51 -0800 (PST)",
            "from octeon10-1.usa.Arm.com (unknown [10.118.91.161])\n by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EB6AB3F73F;\n Fri, 23 Feb 2024 05:27:12 -0800 (PST)"
        ],
        "From": "Yoan Picchi <yoan.picchi@arm.com>",
        "To": "",
        "Cc": "dev@dpdk.org,\n\tYoan Picchi <yoan.picchi@arm.com>",
        "Subject": "[PATCH v4 0/4] hash: add SVE support for bulk key lookup",
        "Date": "Fri, 23 Feb 2024 13:26:57 +0000",
        "Message-Id": "<20240223132701.2872066-1-yoan.picchi@arm.com>",
        "X-Mailer": "git-send-email 2.25.1",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "X-Mailman-Approved-At": "Tue, 27 Feb 2024 07:02:24 +0100",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <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 <mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org"
    },
    "content": "This patchset adds SVE support for the signature comparison in the cuckoo\nhash lookup and improves the existing NEON implementation. These\noptimizations required changes to the data format and signature of the\nrelevant functions to support dense hitmasks (no padding) and having the\nprimary and secondary hitmasks interleaved instead of being in their own\narray each.\n\nBenchmarking the cuckoo hash perf test, I observed this effect on speed:\n  There are no significant changes on Intel (ran on Sapphire Rapids)\n  Neon is up to 7-10% faster (ran on ampere altra)\n  128b SVE is about 3-5% slower than the optimized neon (ran on a graviton\n    3 cloud instance)\n  256b SVE is about 0-3% slower than the optimized neon (ran on a graviton\n    3 cloud instance)\n\nV2->V3:\n  Remove a redundant if in the test\n  Change a couple int to uint16_t in compare_signatures_dense\n  Several codding-style fix\n\nV3->V4:\n  Rebase\n\n*** BLURB HERE ***\n\nYoan Picchi (4):\n  hash: pack the hitmask for hash in bulk lookup\n  hash: optimize compare signature for NEON\n  test/hash: check bulk lookup of keys after collision\n  hash: add SVE support for bulk key lookup\n\n .mailmap                   |   2 +\n app/test/test_hash.c       |  99 ++++++++++----\n lib/hash/rte_cuckoo_hash.c | 264 +++++++++++++++++++++++++++++--------\n lib/hash/rte_cuckoo_hash.h |   1 +\n 4 files changed, 287 insertions(+), 79 deletions(-)"
}