From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Subject: Re: network namespace bloat
Date: Wed, 11 Feb 2015 18:09:44 +0100
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Cc: Stephen Hemminger <stephen@networkplumber.org>,
	roopa <roopa@cumulusnetworks.com>, hannes@stressinduktion.org,
	Dinesh Dutt <ddutt@cumulusnetworks.com>,
	Vipin Kumar <vipin@cumulusnetworks.com>,
	Shmulik Ladkani <shmulik.ladkani@gmail.com>,
	David Ahern <dsahern@gmail.com>,
	Eric Dumazet <edumazet@google.com>,
	"David S. Miller" <davem@davemloft.net>
To: "Eric W. Biederman" <ebiederm@xmission.com>, netdev@vger.kernel.org
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Le 11/02/2015 03:42, Eric W. Biederman a =C3=A9crit :
[snip]
>
> The next largest component appears to be all of the tunnel network
> devices that we allocate for compatibility reasons so that the old io=
ctl
> interfaces still work.
>
[snip]
>
>
> A knob (sysctl?) that controls the creation of the backwards
> compabitilty tunnel network devices seems desirable.  As in many
> instances those are just overhead today.
Note that these interfaces are also used as fallback devices, they catc=
h
packets that don't match any configured tunnels.

See: http://thread.gmane.org/gmane.linux.network/249634/focus=3D249634

[snip]
>
> In my ideal world enough of these issues would be fixed that a
> new empty network namespace would consume less than 100KiB of memory.
+1


Regards,
Nicolas