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{
    "id": 50360,
    "url": "http://patches.dpdk.org/api/patches/50360/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20190219105951.31046-1-tiwei.bie@intel.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": "<20190219105951.31046-1-tiwei.bie@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20190219105951.31046-1-tiwei.bie@intel.com",
    "date": "2019-02-19T10:59:46",
    "name": "[0/5] Fixes and enhancements for Tx path in Virtio PMD",
    "commit_ref": null,
    "pull_url": null,
    "state": null,
    "archived": false,
    "hash": null,
    "submitter": {
        "id": 617,
        "url": "http://patches.dpdk.org/api/people/617/?format=api",
        "name": "Tiwei Bie",
        "email": "tiwei.bie@intel.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/20190219105951.31046-1-tiwei.bie@intel.com/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/50360/comments/",
    "check": "pending",
    "checks": "http://patches.dpdk.org/api/patches/50360/checks/",
    "tags": {},
    "related": [],
    "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 347355942;\n\tTue, 19 Feb 2019 12:02:39 +0100 (CET)",
            "from mga17.intel.com (mga17.intel.com [192.55.52.151])\n\tby dpdk.org (Postfix) with ESMTP id B17105920\n\tfor <dev@dpdk.org>; Tue, 19 Feb 2019 12:02:37 +0100 (CET)",
            "from orsmga002.jf.intel.com ([10.7.209.21])\n\tby fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t19 Feb 2019 03:02:36 -0800",
            "from dpdk-tbie.sh.intel.com ([10.67.104.173])\n\tby orsmga002.jf.intel.com with ESMTP; 19 Feb 2019 03:02:35 -0800"
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
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        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.58,388,1544515200\"; d=\"scan'208\";a=\"135430779\"",
        "From": "Tiwei Bie <tiwei.bie@intel.com>",
        "To": "maxime.coquelin@redhat.com,\n\tzhihong.wang@intel.com,\n\tdev@dpdk.org",
        "Date": "Tue, 19 Feb 2019 18:59:46 +0800",
        "Message-Id": "<20190219105951.31046-1-tiwei.bie@intel.com>",
        "X-Mailer": "git-send-email 2.17.1",
        "Subject": "[dpdk-dev] [PATCH 0/5] Fixes and enhancements for Tx path in Virtio\n\tPMD",
        "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": "Below is a quick (unofficial) performance test (macfwd loop, 64B)\nfor the packed ring optimizations in this series on an Intel(R)\nXeon(R) Gold 6140 CPU @ 2.30GHz platform:\n\nw/o this series:\npacked ring normal/in-order:  ~10.4 Mpps\n\nw/ this series:\npacked ring normal:           ~10.9 Mpps\npacked ring in-order:         ~11.3 Mpps\n\nIn the test, we need to make sure that the vhost side is fast enough.\nSo 4 forwarding cores are used in vhost side, and 1 forwarding core is\nused in virtio side.\n\nvhost side:\n\n./x86_64-native-linuxapp-gcc/app/testpmd \\\n        -l 13,14,15,16,17 \\\n        --socket-mem 1024,0 \\\n        --file-prefix=vhost \\\n        --vdev=net_vhost0,iface=/tmp/vhost0,queues=4 \\\n        -- \\\n        --forward-mode=mac \\\n        -i \\\n        --rxq=4 \\\n        --txq=4 \\\n        --nb-cores 4\n\nvirtio side:\n\n./x86_64-native-linuxapp-gcc/app/testpmd \\\n        -l 8,9,10,11,12 \\\n        --socket-mem 1024,0 \\\n        --single-file-segments \\\n        --file-prefix=virtio-user \\\n        --vdev=virtio_user0,path=/tmp/vhost0,queues=4,in_order=1,packed_vq=1 \\\n        -- \\\n        --forward-mode=mac \\\n        -i \\\n        --rxq=4 \\\n        --txq=4 \\\n        --nb-cores 1\n\n\nTiwei Bie (5):\n  net/virtio: fix Tx desc cleanup for packed ring\n  net/virtio: fix in-order Tx path for split ring\n  net/virtio: fix in-order Tx path for packed ring\n  net/virtio: introduce a helper for clearing net header\n  net/virtio: optimize xmit enqueue for packed ring\n\n drivers/net/virtio/virtio_ethdev.c |   4 +-\n drivers/net/virtio/virtio_rxtx.c   | 203 ++++++++++++++++++++---------\n 2 files changed, 146 insertions(+), 61 deletions(-)",
    "diff": null,
    "prefixes": [
        "0/5"
    ]
}