netdev - Re: [PATCH net-next v2 0/2] udp: Fix multicast performance issues.

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Message-ID: <CAGa1Tm6Zx8AzRY+exwGRnbYSA51fhYXDQ3qSNkmyPL99jeYn9w@mail.gmail.com>
Date:	Tue, 15 Jul 2014 17:23:53 -0400
From:	David Held <drheld@...gle.com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, Eric Dumazet <eric.dumazet@...il.com>,
	Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH net-next v2 0/2] udp: Fix multicast performance issues.

v1->v2
 - updated hash collision detection

On Tue, Jul 15, 2014 at 5:22 PM, David Held <drheld@...gle.com> wrote:
> Fix performance issues with listening to many different multicast
> sockets on different addresses with the same port. Instead of always
> using hash1, fall back to hash2 lookup when hash1 lookup is long.
> Patch 1 is a general cleanup and simplification which also makes the
> main implementation in Patch 2 simpler.
>
> Eric's recent change 63c6f81cdde5 avoided this being an issue in early
> demux. This makes it work for regular delivery as well.
>
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