netdev - Re: [PATCH net-next 1/2] selftests: mptcp: add option to specify size of file to transfer

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Message-ID: <1943d2bb-fc60-4614-07db-e56d7e3a824d@tessares.net>
Date:   Wed, 1 Jul 2020 15:06:51 +0200
From:   Matthieu Baerts <matthieu.baerts@...sares.net>
To:     Florian Westphal <fw@...len.de>, netdev@...r.kernel.org
Cc:     mptcp@...ts.01.org
Subject: Re: [PATCH net-next 1/2] selftests: mptcp: add option to specify size
 of file to transfer

Hi Florian,

On 30/06/2020 21:24, Florian Westphal wrote:
> The script generates two random files that are then sent via tcp and
> mptcp connections.
> 
> In order to compare throughput over consecutive runs add an option
> to provide the file size on the command line: "-f 128000".
> 
> Also add an option, -t, to enable tcp tests. This is useful to
> compare throughput of mptcp connections and tcp connections.
> 
> Example: run tests with a 4mb file size, 300ms delay 0.01% loss,
> default gso/tso/gro settings and with large write/blocking io:
> 
> mptcp_connect.sh -t -f $((4 * 1024 * 1024)) -d 300 -l 0.01%  -r 0 -e "" -m mmap
> 
> Signed-off-by: Florian Westphal <fw@...len.de>

Thank you for the patch! The new '-t' option was also very helpful when 
investigating the issue 6 on Github!

Reviewed-by: Matthieu Baerts <matthieu.baerts@...sares.net>

Cheers,
Matt
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