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From: Jiayu Hu <jiayu.hu@intel.com>
To: dev@dpdk.org
Cc: maxime.coquelin@redhat.com, chenbo.xia@intel.com,
	cheng1.jiang@intel.com, yinan.wang@intel.com, jiayu.hu@intel.com
Subject: [dpdk-dev] [Patch v2 0/2] Enhance Async Enqueue for Small Packets
Date: Tue, 22 Dec 2020 04:46:03 -0500
Message-ID: <1608630365-131192-1-git-send-email-jiayu.hu@intel.com> (raw)
In-Reply-To: <1607678500-172518-1-git-send-email-jiayu.hu@intel.com>

Async enqueue offloads large copies to DMA devices, and small copies
are still performed by the CPU. However, it requires users to get
enqueue completed packets by rte_vhost_poll_enqueue_completed(), even
if they are completed by the CPU when rte_vhost_submit_enqueue_burst()
returns. This design incurs extra overheads of tracking completed
pktmbufs and function calls, thus degrading performance on small packets.

The first patch cleans up async enqueue code, and the second patch
enables rte_vhost_submit_enqueue_burst() to return completed packets.

Change log
==========
v2:
- fix typo
- rename API variables
- update programmer guide

Jiayu Hu (2):
  vhost: cleanup async enqueue
  vhost: enhance async enqueue for small packets

 doc/guides/prog_guide/vhost_lib.rst |   7 +-
 lib/librte_vhost/rte_vhost_async.h  |  24 ++--
 lib/librte_vhost/vhost.c            |  14 +-
 lib/librte_vhost/vhost.h            |   7 +-
 lib/librte_vhost/vhost_user.c       |   7 +-
 lib/librte_vhost/virtio_net.c       | 256 ++++++++++++++++++++----------------
 6 files changed, 175 insertions(+), 140 deletions(-)

-- 
2.7.4


  parent reply	other threads:[~2020-12-22  3:14 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-11  9:21 [dpdk-dev] [PATCH " Jiayu Hu
2020-12-11  9:21 ` [dpdk-dev] [PATCH 1/2] vhost: cleanup async enqueue Jiayu Hu
2020-12-11  9:21 ` [dpdk-dev] [PATCH 2/2] vhost: enhance async enqueue for small packets Jiayu Hu
2020-12-22  9:46 ` Jiayu Hu [this message]
2020-12-22  9:46   ` [dpdk-dev] [Patch v2 1/2] vhost: cleanup async enqueue Jiayu Hu
2020-12-22  9:46   ` [dpdk-dev] [Patch v2 2/2] vhost: enhance async enqueue for small packets Jiayu Hu
2020-12-25  8:28   ` [dpdk-dev] [PATCH v3 0/2] Enhance Async Enqueue for Small Packets Jiayu Hu
2020-12-25  8:28     ` [dpdk-dev] [PATCH v3 1/2] vhost: cleanup async enqueue Jiayu Hu
2020-12-25  8:28     ` [dpdk-dev] [PATCH v3 2/2] vhost: enhance async enqueue for small packets Jiayu Hu
2021-01-05 11:41     ` [dpdk-dev] [PATCH v3 0/2] Enhance Async Enqueue for Small Packets Wang, Yinan
2021-01-07 10:45     ` Maxime Coquelin
2021-01-11 12:16     ` [dpdk-dev] [PATCH v4 " Jiayu Hu
2021-01-11 12:16       ` [dpdk-dev] [PATCH v4 1/2] vhost: cleanup async enqueue Jiayu Hu
2021-01-11 11:04         ` Maxime Coquelin
2021-01-11 14:04           ` Maxime Coquelin
2021-01-11 12:16       ` [dpdk-dev] [PATCH v4 2/2] vhost: enhance async enqueue for small packets Jiayu Hu
2021-01-11 12:44         ` Maxime Coquelin
2021-01-11 15:02       ` [dpdk-dev] [PATCH v4 0/2] Enhance Async Enqueue for Small Packets Maxime Coquelin

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