netdev - Re: [PATCH net-next 0/2] ipv6: udp: exploit dev

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Message-Id: <20170627.154417.863004930892362291.davem@davemloft.net>
Date:   Tue, 27 Jun 2017 15:44:17 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     pabeni@...hat.com
Cc:     netdev@...r.kernel.org, edumazet@...gle.com
Subject: Re: [PATCH net-next 0/2] ipv6: udp: exploit dev_scratch helpers

From: Paolo Abeni <pabeni@...hat.com>
Date: Mon, 26 Jun 2017 19:01:49 +0200

> When bringing in the recent cache optimization for the UDP protocol, I forgot
> to leverage the newly introduced scratched area helpers in the UDPv6 code path.
> As a result, the UDPv6 implementation suffers some unnecessary performance
> penality when compared to v4.
> 
> This series aim to bring back UDPv6 on equal footing in respect to v4.
> The first patch moves the shared helpers to the common include files, while
> the second uses them in the UDPv6 code.
> 
> This gives 5-8% performance improvement for a system under flood with small
> UDPv6 packets. The performance delta is less than the one reported on the
> original patch set because the UDPv6 code path already leveraged some of the
> optimization.

Series applied, thank you.