From: Jens Freimann <jfreimann@redhat.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com
Subject: Re: [dpdk-dev] [PATCH] vhost: batch used descriptors chains write-back with packed ring
Date: Wed, 28 Nov 2018 11:05:34 +0100 [thread overview]
Message-ID: <20181128100534.6oil7r2zj6popznl@jenstp.localdomain> (raw)
In-Reply-To: <20181128094700.14598-1-maxime.coquelin@redhat.com>
On Wed, Nov 28, 2018 at 10:47:00AM +0100, Maxime Coquelin wrote:
>Instead of writing back descriptors chains in order, let's
>write the first chain flags last in order to improve batching.
>
>With Kernel's pktgen benchmark, ~3% performance gain is measured.
>
>Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
>---
> lib/librte_vhost/virtio_net.c | 37 ++++++++++++++++++++++-------------
> 1 file changed, 23 insertions(+), 14 deletions(-)
>
Tested-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
next prev parent reply other threads:[~2018-11-28 10:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 9:47 Maxime Coquelin
2018-11-28 10:05 ` Jens Freimann [this message]
[not found] ` <CGME20181205160124eucas1p1470e3dc9afe8e59ceab54a58140cf400@eucas1p1.samsung.com>
2018-12-05 16:01 ` [dpdk-dev] " Ilya Maximets
2018-12-06 0:56 ` Michael S. Tsirkin
2018-12-06 17:10 ` Maxime Coquelin
[not found] <CGME20181212082505epcas4p36ea3086cfd223aae70a925e946fced48@epcas4p3.samsung.com>
2018-12-12 8:24 ` [dpdk-dev] [PATCH] " Maxime Coquelin
2018-12-12 9:41 ` Maxime Coquelin
2018-12-12 15:23 ` Ilya Maximets
2018-12-12 16:34 ` Maxime Coquelin
2018-12-12 18:53 ` Michael S. Tsirkin
2018-12-19 9:16 ` Maxime Coquelin
2018-12-19 16:10 ` Michael S. Tsirkin
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