From: Jason Wang <jasowang@redhat.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: mst@redhat.com, virtualization@lists.linux-foundation.org,
kvm@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH V2 0/8] Packed ring for vhost
Date: Tue, 27 Mar 2018 11:33:38 +0800 [thread overview]
Message-ID: <1e5ad820-f11a-8208-d4c0-5d871adddb9e@redhat.com> (raw)
In-Reply-To: <20180326190130.GE6928@char.us.oracle.com>
On 2018年03月27日 03:01, Konrad Rzeszutek Wilk wrote:
> On Mon, Mar 26, 2018 at 11:38:45AM +0800, Jason Wang wrote:
>> Hi all:
>>
>> This RFC implement packed ring layout. The code were tested with pmd
>> implement by Jens at
>> http://dpdk.org/ml/archives/dev/2018-January/089417.html. Minor change
>> was needed for pmd codes to kick virtqueue since it assumes a busy
>> polling backend.
>>
>> Test were done between localhost and guest. Testpmd (rxonly) in guest
>> reports 2.4Mpps. Testpmd (txonly) repots about 2.1Mpps.
> And how does it compare to older ring layout?
>
No obvious difference.
Vhost itself becomes a bottleneck. I plan to do more aggressive batching
like dpdk on top.
Thanks
prev parent reply other threads:[~2018-03-27 3:33 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-26 3:38 [RFC PATCH V2 0/8] Packed ring for vhost Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 1/8] vhost: move get_rx_bufs to vhost.c Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 2/8] vhost: hide used ring layout from device Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 3/8] vhost: do not use vring_used_elem Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 4/8] vhost_net: do not explicitly manipulate vhost_used_elem Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 5/8] vhost: vhost_put_user() can accept metadata type Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 6/8] virtio: introduce packed ring defines Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 7/8] vhost: packed ring support Jason Wang
2018-03-26 3:38 ` [RFC PATCH V2 8/8] vhost: event suppression for packed ring Jason Wang
2018-03-30 2:05 ` Tiwei Bie
2018-03-30 2:46 ` Jason Wang
2018-03-26 3:44 ` [RFC PATCH V2 0/8] Packed ring for vhost Jason Wang
2018-03-26 19:01 ` Konrad Rzeszutek Wilk
2018-03-27 3:33 ` Jason Wang [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1e5ad820-f11a-8208-d4c0-5d871adddb9e@redhat.com \
--to=jasowang@redhat.com \
--cc=konrad.wilk@oracle.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=virtualization@lists.linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).