netdev - Re: Netperf UDP issue with connected sockets

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Date:   Mon, 28 Nov 2016 10:33:49 -0800
From:   Rick Jones <rick.jones2@....com>
To:     Jesper Dangaard Brouer <brouer@...hat.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Cc:     netdev@...r.kernel.org, brouer@...hat.com
Subject: Re: Netperf UDP issue with connected sockets

On 11/17/2016 12:16 AM, Jesper Dangaard Brouer wrote:
>> time to try IP_MTU_DISCOVER ;)
>
> To Rick, maybe you can find a good solution or option with Eric's hint,
> to send appropriate sized UDP packets with Don't Fragment (DF).

Jesper -

Top of trunk has a change adding an omni, test-specific -f option which 
will set IP_MTU_DISCOVER:IP_PMTUDISC_DO on the data socket.  Is that 
sufficient to your needs?

happy benchmarking,

rick