From mboxrd@z Thu Jan  1 00:00:00 1970
From: Cong Wang <xiyou.wangcong@gmail.com>
Subject: Re: [net-next PATCH 0/3] net: optimize ICMP-reply code path
Date: Mon, 9 Jan 2017 09:43:52 -0800
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References: <20170109150246.30215.63371.stgit@firesoul>
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Cc: Linux Kernel Network Developers <netdev@vger.kernel.org>,
        Eric Dumazet <eric.dumazet@gmail.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
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On Mon, Jan 9, 2017 at 7:03 AM, Jesper Dangaard Brouer
<brouer@redhat.com> wrote:
>
> Use-case: The specific case I experienced this being a bottleneck is,
> sending UDP packets to a port with no listener, which obviously result
> in kernel replying with ICMP Destination Unreachable (type:3), Port
> Unreachable (code:3), which cause the bottleneck.

Why this is a case we should care about for performance?