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, thomas@monjalon.net, jerinj@marvell.com,
yinan.wang@intel.com, honnappa.nagarahalli@arm.com,
gavin.hu@arm.com
Subject: [dpdk-dev] [PATCH v1 0/2] one way barrier for split vring idx
Date: Wed, 12 Feb 2020 17:24:54 +0800 [thread overview]
Message-ID: <20200212092456.29433-1-joyce.kong@arm.com> (raw)
The similar changes for the packed ring were measured 10% performance
lift and were merged. [1]
In principle, less restrictive barriers generate better performance.
However, no real performance lift was measured with the split ring on
the limited number of existing HW implementations, the reason may be
they are not in the critical path.
To keep consistent with the barrier usage in the packed ring implementation
and be future-proof, we still believe the patches make sense, we are looking
forward to verify the performance when new HWs are available.
[1] https://patchwork.dpdk.org/cover/59283/
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 | 9 ++--
drivers/net/virtio/virtio_ring.h | 2 +-
drivers/net/virtio/virtio_rxtx.c | 46 ++++++++--------
drivers/net/virtio/virtio_rxtx_simple_neon.c | 5 +-
drivers/net/virtio/virtio_rxtx_simple_sse.c | 5 +-
.../net/virtio/virtio_user/virtio_user_dev.c | 8 +--
drivers/net/virtio/virtqueue.c | 2 +-
drivers/net/virtio/virtqueue.h | 53 ++++++++++++++++---
lib/librte_vhost/virtio_net.c | 19 +++----
9 files changed, 90 insertions(+), 59 deletions(-)
--
2.17.1
next reply other threads:[~2020-02-12 9:25 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 9:24 Joyce Kong [this message]
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 ` [dpdk-dev] [PATCH v5 0/2] one way barrier for split vring idx Joyce Kong
2020-04-30 20:54 ` 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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