netdev - Re: [PATCH 00/16] Remove the ipv4 routing cache

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Message-ID: <500D8FEE.7050802@itcare.pl>
Date:	Mon, 23 Jul 2012 19:54:54 +0200
From:	Paweł Staszewski <pstaszewski@...are.pl>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH 00/16] Remove the ipv4 routing cache

W dniu 2012-07-23 09:15, Eric Dumazet pisze:
> On Sun, 2012-07-22 at 17:39 -0700, David Miller wrote:
>> Just FYI, I'm pushing this work out to net-next now.
>> --
> Excellent !
>
> Thanks a lot David
>
>
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Yes
Excellent work.

I make some real life tests with 10Gbit traffic and make some rdos.
With kernel 3.4.5 when I reach 6M routing cache entries - traffic is not 
forwarded - on my hardware with 64G RAM

With kernel - 3.5.0-rc7-next-20120720 + David M. patches - route cache 
removal + fix
Traffic is forwarder all the time at speed 8.2Mpps RX from traffic 
generator and 8.2Mpps TX to the sink

Also I see performance improvement.

With kernel 3.4.5 I can reach maximum od 7.5Mpps with my hardware
And with kernel 3.5.0-rc7-next-20120720 i can reach 8.2Mpps - forwarding 
UDP performance - can be more - but my TX pktgen that use 6 cores can't 
do more.

Really thanks for this :)

BR
Paweł Staszewski
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