Re: [net-next PATCH 0/3] net: optimize ICMP-reply code path
From: Cong Wang <hidden>
Date: 2017-01-09 17:44:13
On Mon, Jan 9, 2017 at 7:03 AM, Jesper Dangaard Brouer [off-list ref] 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?