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GET /api/patches/48636/?format=api
{ "id": 48636, "url": "http://patches.dpdk.org/api/patches/48636/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20181211134804.10318-1-maxime.coquelin@redhat.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": "<20181211134804.10318-1-maxime.coquelin@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181211134804.10318-1-maxime.coquelin@redhat.com", "date": "2018-12-11T13:48:01", "name": "[v2,0/3] net/virtio: Rx paths improvements", "commit_ref": null, "pull_url": null, "state": null, "archived": false, "hash": null, "submitter": { "id": 512, "url": "http://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@redhat.com" }, "delegate": null, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20181211134804.10318-1-maxime.coquelin@redhat.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/48636/comments/", "check": "pending", "checks": "http://patches.dpdk.org/api/patches/48636/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 EF4334F9C;\n\tTue, 11 Dec 2018 14:48:26 +0100 (CET)", "from mx1.redhat.com (mx1.redhat.com [209.132.183.28])\n\tby dpdk.org (Postfix) with ESMTP id 4F3794CB5\n\tfor <dev@dpdk.org>; Tue, 11 Dec 2018 14:48:25 +0100 (CET)", "from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 96A4158E29;\n\tTue, 11 Dec 2018 13:48:24 +0000 (UTC)", "from localhost.localdomain (ovpn-112-28.ams2.redhat.com\n\t[10.36.112.28])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id B8FCC60C64;\n\tTue, 11 Dec 2018 13:48:07 +0000 (UTC)" ], "From": "Maxime Coquelin <maxime.coquelin@redhat.com>", "To": "dev@dpdk.org, jfreimann@redhat.com, tiwei.bie@intel.com,\n\tzhihong.wang@intel.com", "Cc": "Maxime Coquelin <maxime.coquelin@redhat.com>", "Date": "Tue, 11 Dec 2018 14:48:01 +0100", "Message-Id": "<20181211134804.10318-1-maxime.coquelin@redhat.com>", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.12", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.39]); Tue, 11 Dec 2018 13:48:24 +0000 (UTC)", "Subject": "[dpdk-dev] [PATCH v2 0/3] net/virtio: Rx paths 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": "Initial version of this series did merge out-of-order mergeable\nand non-mergeable receive paths, but Intel STV team highlighted\nsome performance regression when using multiqueue with two cores\nenqueueing descs on host, while a single core dequeues the\ntwo queues.\n\nI didn't manage to close the performance gap, so I decided to\ngive-up this refactoring. But while trying to optimize, I reworked\nthe meargeable function so that it looks like the in-order one.\nI.e. descriptors are now dequeued in batches, so are descriptors\nrefilled. Doing that, I measure a perfromance gain of 6% when doing\nrxonly microbenchmark with two cores on host, one in guest.\n\nThe other two patches of the series haven't been modified.\n\nMaxime Coquelin (3):\n net/virtio: inline refill and offload helpers\n net/virtio: add non-mergeable support to in-order path\n net/virtio: improve batching in mergeable path\n\n drivers/net/virtio/virtio_ethdev.c | 11 +-\n drivers/net/virtio/virtio_ethdev.h | 2 +-\n drivers/net/virtio/virtio_rxtx.c | 255 ++++++++++++++++-------------\n 3 files changed, 141 insertions(+), 127 deletions(-)", "diff": null, "prefixes": [ "v2", "0/3" ] }