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From: Joyce Kong <joyce.kong@arm.com>
To: maxime.coquelin@redhat.com, stephen@networkplumber.org,
	xiaolong.ye@intel.com, zhihong.wang@intel.com,
	thomas@monjalon.net, jerinj@marvell.com, yinan.wang@intel.com,
	ferruh.yigit@intel.com, honnappa.nagarahalli@arm.com,
	gavin.hu@arm.com
Cc: nd@arm.com, dev@dpdk.org
Subject: [dpdk-dev] [PATCH v5 0/2] one way barrier for split vring idx
Date: Thu, 30 Apr 2020 17:14:35 +0800	[thread overview]
Message-ID: <20200430091437.34958-1-joyce.kong@arm.com> (raw)
In-Reply-To: <20200212092456.29433-1-joyce.kong@arm.com>

This patchset replaces the two-way barriers with C11 one-way barriers
for split vring idx, when the frontend and backend are implemented
in software.

By doing PVP benchmarking, the test result of 2c1q showed the throughput
increased 20% with the 0.001% of acceptable loss rate on Thunderx2
platform.[1]

By doing vhost-user + virtio-user case benchmarking, 4% performance gain
was measured on Thunderx2 platform by 2c1q RFC2544 test of 0.001% loss,
and 4.7% performance was improved on Dell platform by 1c1q RFC2544 test
of zero packet loss.[2]

[1]https://doc.dpdk.org/guides/howto/pvp_reference_benchmark.html
[2]https://doc.dpdk.org/dts/test_plans/pvp_multi_paths_performance_test_plan.html
   PVP test with virtio 1.0 normal path

v5:
  Fix the compling issue when 'CONFIG_RTE_LIBRTE_VIRTIO_DEBUG_DUMP=y'
  is enabled.

v4:
  Remove some duplicated code comment.

v3:
  Modify some style error.

v2:
  Add test performance statistics.

Joyce Kong (2):
  virtio: one way barrier for split vring used idx
  virtio: one way barrier for split vring avail idx

 drivers/net/virtio/virtio_ethdev.c            |  7 +--
 drivers/net/virtio/virtio_ring.h              |  2 +-
 drivers/net/virtio/virtio_rxtx.c              | 35 ++++-------
 drivers/net/virtio/virtio_rxtx_simple_neon.c  |  5 +-
 drivers/net/virtio/virtio_rxtx_simple_sse.c   |  4 +-
 .../net/virtio/virtio_user/virtio_user_dev.c  |  8 ++-
 drivers/net/virtio/virtqueue.c                |  2 +-
 drivers/net/virtio/virtqueue.h                | 58 ++++++++++++++++---
 lib/librte_vhost/virtio_net.c                 | 19 +++---
 9 files changed, 81 insertions(+), 59 deletions(-)

-- 
2.17.1


  parent reply	other threads:[~2020-04-30  9:14 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-12  9:24 [dpdk-dev] [PATCH v1 " Joyce Kong
2020-02-12  9:24 ` [dpdk-dev] [PATCH v1 1/2] virtio: one way barrier for split vring used idx Joyce Kong
2020-02-12  9:24 ` [dpdk-dev] [PATCH v1 2/2] virtio: one way barrier for split vring avail idx Joyce Kong
2020-04-02  2:57 ` [dpdk-dev] [PATCH v2 0/2] one way barrier for split vring idx Joyce Kong
2020-04-02  2:57 ` [dpdk-dev] [PATCH v2 1/2] virtio: one way barrier for split vring used idx Joyce Kong
2020-04-02 15:47   ` Stephen Hemminger
2020-04-03  8:55     ` Gavin Hu
2020-04-16  4:40       ` Honnappa Nagarahalli
2020-04-16  6:46         ` Joyce Kong
2020-04-02  2:57 ` [dpdk-dev] [PATCH v2 2/2] virtio: one way barrier for split vring avail idx Joyce Kong
2020-04-06 15:26 ` [dpdk-dev] [PATCH v3 0/2] one way barrier for split vring idx Joyce Kong
2020-04-16  9:08   ` Ye Xiaolong
2020-04-06 15:26 ` [dpdk-dev] [PATCH v3 1/2] virtio: one way barrier for split vring used idx Joyce Kong
2020-04-17  6:51   ` Ye Xiaolong
2020-04-17  8:14     ` Joyce Kong
2020-04-06 15:26 ` [dpdk-dev] [PATCH v3 2/2] virtio: one way barrier for split vring avail idx Joyce Kong
2020-04-24  3:39 ` [dpdk-dev] [PATCH v4 0/2] one way barrier for split vring idx Joyce Kong
2020-04-28 16:06   ` Maxime Coquelin
2020-04-29 17:45   ` Ferruh Yigit
2020-04-30  9:09     ` Maxime Coquelin
2020-04-30  9:16       ` Joyce Kong
2020-04-30  9:24         ` Maxime Coquelin
2020-04-24  3:39 ` [dpdk-dev] [PATCH v4 1/2] virtio: one way barrier for split vring used idx Joyce Kong
2020-04-27  9:03   ` Maxime Coquelin
2020-04-24  3:39 ` [dpdk-dev] [PATCH v4 2/2] virtio: one way barrier for split vring avail idx Joyce Kong
2020-04-27  9:03   ` Maxime Coquelin
2020-04-30  9:14 ` Joyce Kong [this message]
2020-04-30 20:54   ` [dpdk-dev] [PATCH v5 0/2] one way barrier for split vring idx Maxime Coquelin
2020-04-30  9:14 ` [dpdk-dev] [PATCH v5 1/2] virtio: one way barrier for split vring used idx Joyce Kong
2020-04-30 22:58   ` Ferruh Yigit
2020-05-04 10:04     ` Maxime Coquelin
2020-04-30  9:14 ` [dpdk-dev] [PATCH v5 2/2] virtio: one way barrier for split vring avail idx Joyce Kong

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