From: Jason Wang <jasowang@redhat.com>
To: Jamal Hadi Salim <jhs@mojatatu.com>,
mst@redhat.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
virtualization@lists.linux-foundation.org, davem@davemloft.net
Cc: eric.dumazet@gmail.com, brouer@redhat.com
Subject: Re: [PATCH net-next V2] tun: introduce tx skb ring
Date: Thu, 16 Jun 2016 15:08:42 +0800 [thread overview]
Message-ID: <5762507A.4030801@redhat.com> (raw)
In-Reply-To: <5761422F.3010303@mojatatu.com>
On 2016年06月15日 19:55, Jamal Hadi Salim wrote:
> On 16-06-15 07:52 AM, Jamal Hadi Salim wrote:
>> On 16-06-15 04:38 AM, Jason Wang wrote:
>>> We used to queue tx packets in sk_receive_queue, this is less
>>> efficient since it requires spinlocks to synchronize between producer
>> So this is more exercising the skb array improvements. For tun
>> it would be useful to see general performance numbers on user/kernel
>> crossing (i.e tun read/write).
>> If you have the cycles can you run such tests?
>>
> Ignore my message - you are running pktgen from a VM towards the host.
Actually reversed, test were done from an external host to VM.
Thanks
> So the numbers you posted are what i was interested in.
> Thanks for the good work.
>
> cheers,
> jamal
>
next prev parent reply other threads:[~2016-06-16 7:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 8:38 [PATCH net-next V2] tun: introduce tx skb ring Jason Wang
2016-06-15 10:34 ` kbuild test robot
2016-06-15 11:52 ` Jamal Hadi Salim
2016-06-15 11:55 ` Jamal Hadi Salim
2016-06-16 7:08 ` Jason Wang [this message]
2016-06-17 0:01 ` David Miller
2016-06-17 0:41 ` Michael S. Tsirkin
2016-06-17 7:22 ` Jason Wang
2016-06-22 18:18 ` Michael S. Tsirkin
2016-06-23 5:14 ` Jason Wang
2016-06-28 7:09 ` Michael S. Tsirkin
2016-06-30 1:50 ` Jason Wang
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=5762507A.4030801@redhat.com \
--to=jasowang@redhat.com \
--cc=brouer@redhat.com \
--cc=davem@davemloft.net \
--cc=eric.dumazet@gmail.com \
--cc=jhs@mojatatu.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).