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From: Joyce Kong <joyce.kong@arm.com>
To: dev@dpdk.org
Cc: nd@arm.com, maxime.coquelin@redhat.com, tiwei.bie@intel.com,
	zhihong.wang@intel.com, amorenoz@redhat.com,
	xiao.w.wang@intel.com, yong.liu@intel.com, jfreimann@redhat.com,
	honnappa.nagarahalli@arm.com, gavin.hu@arm.com
Subject: [dpdk-dev] [PATCH v2 0/2] virtio: one way barrier for packed vring flags
Date: Fri,  6 Sep 2019 19:34:46 +0800	[thread overview]
Message-ID: <1567769688-34413-1-git-send-email-joyce.kong@arm.com> (raw)
In-Reply-To: <1566893979-3290-1-git-send-email-joyce.kong@arm.com>

This patch set replaces the two-way barriers with C11 one-way barriers
for packed vring flags, when the frontend and backend are implemented
in software.

By doing vhost-user + virtio-user case benchmarking, 9% performance gain
in the RFC2544 test was measured on Thunderx2 platform.[1]

[1]https://doc.dpdk.org/dts/test_plans/pvp_multi_paths_performance_test_plan.html
   PVP test with virtio 1.1 mergeable path

v2: convert RFC to patch

Joyce Kong (2):
  virtio: one way barrier for packed vring desc avail flags
  virtio: one way barrier for packed vring desc used flags

 drivers/net/virtio/virtio_rxtx.c                 | 38 ++++++++++++++++++------
 drivers/net/virtio/virtio_user/virtio_user_dev.c | 10 +++++--
 drivers/net/virtio/virtqueue.h                   |  7 ++++-
 lib/librte_vhost/vhost.h                         |  2 +-
 lib/librte_vhost/virtio_net.c                    | 16 +++++-----
 5 files changed, 50 insertions(+), 23 deletions(-)

-- 
2.7.4


  parent reply	other threads:[~2019-09-06 11:35 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-27  8:19 [dpdk-dev] [RFC PATCH " Joyce Kong
2019-08-27  8:19 ` [dpdk-dev] [RFC PATCH 1/2] virtio: one way barrier for packed vring desc avail flags Joyce Kong
2019-08-27  8:19 ` [dpdk-dev] [RFC PATCH 2/2] virtio: one way barrier for packed vring desc used flags Joyce Kong
2019-09-06 11:34 ` Joyce Kong [this message]
2019-09-06 11:34 ` [dpdk-dev] [PATCH v2 1/2] virtio: one way barrier for packed vring desc avail flags Joyce Kong
2019-09-06 16:01   ` Maxime Coquelin
2019-09-09  9:24     ` Joyce Kong (Arm Technology China)
2019-09-06 11:34 ` [dpdk-dev] [PATCH v2 2/2] virtio: one way barrier for packed vring desc used flags Joyce Kong
2019-09-09  9:14 ` [dpdk-dev] [PATCH v3 0/2] virtio: one way barrier for packed vring flags Joyce Kong
2019-09-09  9:14 ` [dpdk-dev] [PATCH v3 1/2] virtio: one way barrier for packed vring desc avail flags Joyce Kong
2019-09-09 10:10   ` Maxime Coquelin
2019-09-10  3:54     ` Wang, Yinan
2019-09-10  9:48       ` Gavin Hu (Arm Technology China)
2019-09-10 10:17         ` Maxime Coquelin
2019-09-11  2:39         ` Liu, Yong
2019-09-11  3:35           ` Gavin Hu (Arm Technology China)
2019-09-11  6:29             ` Liu, Yong
2019-09-11  8:32               ` Gavin Hu (Arm Technology China)
2019-09-11 10:02                 ` Bruce Richardson
2019-09-12  8:21                   ` Gavin Hu (Arm Technology China)
2019-09-09  9:14 ` [dpdk-dev] [PATCH v3 2/2] virtio: one way barrier for packed vring desc used flags Joyce Kong
2019-09-09 10:11   ` Maxime Coquelin
2019-09-17  5:28 ` [dpdk-dev] [PATCH v4 0/2] virtio: one way barrier for packed vring flags Joyce Kong
2019-10-16 11:07   ` Maxime Coquelin
2019-09-17  5:28 ` [dpdk-dev] [PATCH v4 1/2] virtio: one way barrier for packed vring desc avail flags Joyce Kong
2019-10-14  7:42   ` Maxime Coquelin
2019-09-17  5:28 ` [dpdk-dev] [PATCH v4 2/2] virtio: one way barrier for packed vring desc used flags Joyce Kong
2019-09-18  5:20   ` Wang, Yinan
2019-09-19  4:04     ` Gavin Hu (Arm Technology China)
2019-10-14  7:43   ` Maxime Coquelin

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