From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH net-next-2.6] macvlan: remove one synchronize_rcu() call
Date: Fri, 20 May 2011 06:28:05 +0200
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Cc: David Miller <davem@davemloft.net>,
	Patrick McHardy <kaber@trash.net>,
	netdev <netdev@vger.kernel.org>
To: Ben Greear <greearb@candelatech.com>
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Le jeudi 19 mai 2011 =C3=A0 17:18 -0700, Ben Greear a =C3=A9crit :

> I applied this to today's wireless-testing kernel.  There is a consis=
tent
> speedup in deleting mac-vlans!  I wouldn't read much into changes in
> creating macvlans or adding IPs..those numbers just jump around a bit
> from run to run.
>=20
> Before the patch:
> Deleted 500 macvlan in 25.424282 seconds. (0.050848564 per interface)
>=20
>=20
> After the patch:
>=20
> Deleted 500 macvlan in 21.831413 seconds. (0.043662826 per interface)
>=20

Thanks for testing !

My ultimate goal would be to reduce vlan/macvlan delete latency from 50
ms to less than 5 ms. Step by step...

(But this will wait after this merge window, since next changes are a
bit more complex)

Stay tuned ;)