Matthieu Baerts <matthieu.baerts(a)tessares.net> wrote:
>   ( cat "$cin" ; (...) ; cat "$cin" ) | \
>       tee "$cinsent" | \
>       (...) $mptcp_connect (...) > "$cout"
> 
> 
> If I am not mistaken, we then have:
> 
> - $cin = max 131MB: initial file
> - $cinsent = 2 times $cin
> - $sout = $cinsent
> 
> → total: 5*$cin = max 655MB
> 
> Was it the intension? Could we reduce the maximum size while keeping the
> test valid?

Yes, I think its safe to reduce the size though.

Another option is to use /dev/zero as source and set the "sparse" flag for dd,
this would also reduce /tmp usage.