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
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