From: "John W. Linville" <linville@tuxdriver.com>
To: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Pravin B Shelar <pshelar@nicira.com>,
Jiri Benc <jbenc@redhat.com>, Jesse Gross <jesse@nicira.com>,
Hannes Frederic Sowa <hannes@stressinduktion.org>
Subject: Re: [PATCH net v2] geneve: initialize needed_headroom
Date: Wed, 23 Dec 2015 11:01:13 -0500 [thread overview]
Message-ID: <20151223160111.GF20729@tuxdriver.com> (raw)
In-Reply-To: <211eb876be50613e662c0f01c3de6735e23e9b97.1450885903.git.pabeni@redhat.com>
On Wed, Dec 23, 2015 at 04:54:27PM +0100, Paolo Abeni wrote:
> Currently the needed_headroom field for the geneve device is left
> to the default value.
>
> This patch set it to space required for basic geneve encapsulation,
> so that we can avoid the skb head re-allocation on xmit.
>
> This give a 6% speedup for unsegment traffic on geneve tunnel.
>
> v1 -> v2:
> - add ETH_HLEN for the lower device to the needed headroom
>
> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
This time I really mean it... ;-)
Acked-by: John W. Linville <linville@tuxdriver.com>
--
John W. Linville Someday the world will need a hero, and you
linville@tuxdriver.com might be all we have. Be ready.
next prev parent reply other threads:[~2015-12-23 16:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-23 15:54 [PATCH net v2] geneve: initialize needed_headroom Paolo Abeni
2015-12-23 16:01 ` John W. Linville [this message]
2015-12-24 3:28 ` David Miller
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=20151223160111.GF20729@tuxdriver.com \
--to=linville@tuxdriver.com \
--cc=davem@davemloft.net \
--cc=hannes@stressinduktion.org \
--cc=jbenc@redhat.com \
--cc=jesse@nicira.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=pshelar@nicira.com \
/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).