From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org, mst@redhat.com, zhihong.wang@intel.com,
ciara.loftus@intel.com
Subject: Re: [dpdk-dev] [PATCH 0/2] vhost: Add support to indirect descriptors on Rx path
Date: Fri, 21 Oct 2016 23:58:58 +0800 [thread overview]
Message-ID: <20161021155858.GU16751@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <1476804939-8675-1-git-send-email-maxime.coquelin@redhat.com>
On Tue, Oct 18, 2016 at 05:35:37PM +0200, Maxime Coquelin wrote:
> Indirect descriptor feature has been enabled in v16.11-rc1, but only TX path
> was implemented.
> However, some configurations expect it is supported for the Rx path:
> - Windows guests with and without mergeable buffers enabled
> - Linux guests with Kernel drivr with mergeable buffers disabled
>
> This series add the support of indirect descs for the Rx path, and has been
> tested with following configurations:
> - Windows guest with indirect ON, mergeeable ON/OFF
> - Linux guest with Kernel driver with indirect ON/OFF, mergeable ON/OFF
> - Linux guest with Virtio PMD with mergeable ON/OFF
>
> The performance degradation measured with/without this series with Virtio PMD
> is around 1% (which doesn't use indirect descs for the Rx path).
>
> The series is based on top of "vhost: optimize mergeable Rx path" v7.
Series applied to dpdk-next-virtio.
Thanks.
--yliu
>
> Maxime Coquelin (2):
> vhost: Add indirect desc support to Rx mergeable path
> vhost: Add indirect desc support to the Rx no-mergeable path
>
> lib/librte_vhost/virtio_net.c | 73 ++++++++++++++++++++++++++++++-------------
> 1 file changed, 51 insertions(+), 22 deletions(-)
>
> --
> 2.7.4
prev parent reply other threads:[~2016-10-21 15:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-18 15:35 Maxime Coquelin
2016-10-18 15:35 ` [dpdk-dev] [PATCH 1/2] vhost: Add indirect desc support to Rx mergeable path Maxime Coquelin
2016-10-18 15:35 ` [dpdk-dev] [PATCH 2/2] vhost: Add indirect desc support to the Rx no-mergeable path Maxime Coquelin
2016-10-21 15:58 ` Yuanhan Liu [this message]
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