From: Eric Dumazet <eric.dumazet@gmail.com>
To: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: "Alexander Duyck" <alexander.duyck@gmail.com>,
"David Miller" <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
"Neal Cardwell" <ncardwell@google.com>,
"Tom Herbert" <therbert@google.com>,
"Jeff Kirsher" <jeffrey.t.kirsher@intel.com>,
"Michael Chan" <mchan@broadcom.com>,
"Matt Carlson" <mcarlson@broadcom.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Ben Hutchings" <bhutchings@solarflare.com>,
"Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>,
"Maciej Żenczykowski" <maze@google.com>
Subject: Re: [PATCH 3/4 v2 net-next] net: make GRO aware of skb->head_frag
Date: Wed, 02 May 2012 10:24:44 +0200 [thread overview]
Message-ID: <1335947084.22133.134.camel@edumazet-glaptop> (raw)
In-Reply-To: <4FA03D69.6060907@intel.com>
On Tue, 2012-05-01 at 12:45 -0700, Alexander Duyck wrote:
> I have a hacked together ixgbe up and running now with the new build_skb
> logic and RSC/LRO disabled. It looks like it is giving me a 5%
> performance boost for small packet routing, but I am using more CPU for
> netperf TCP receive tests and I was wondering if you had seen anything
> similar on the tg3 driver?
Really hard to say, numbers are so small on Gb link :
what do you use to make your numbers ?
netperf -H 172.30.42.23 -t OMNI -C -c
OMNI Send TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 172.30.42.23 (172.30.42.23) port 0 AF_INET
Local Local Local Elapsed Throughput Throughput Local Local Remote Remote Local Remote Service
Send Socket Send Socket Send Time Units CPU CPU CPU CPU Service Service Demand
Size Size Size (sec) Util Util Util Util Demand Demand Units
Final Final % Method % Method
1700840 1700840 16384 10.01 931.60 10^6bits/s 4.50 S 1.32 S 1.582 2.783 usec/KB
About ixgbe, feel free to send your patch ;)
Thanks !
next prev parent reply other threads:[~2012-05-02 8:24 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-27 10:37 [PATCH 3/4 net-next] net: make GRO aware of skb->head_frag Eric Dumazet
2012-04-30 17:54 ` Eric Dumazet
2012-04-30 18:10 ` [PATCH 3/4 v2 " Eric Dumazet
2012-04-30 23:36 ` Alexander Duyck
2012-05-01 1:27 ` Eric Dumazet
2012-05-01 5:33 ` Alexander Duyck
2012-05-01 6:39 ` Eric Dumazet
2012-05-01 16:17 ` Alexander Duyck
2012-05-01 17:04 ` Eric Dumazet
2012-05-01 19:45 ` Alexander Duyck
2012-05-02 2:45 ` Eric Dumazet
2012-05-02 8:24 ` Eric Dumazet [this message]
2012-05-02 16:16 ` Alexander Duyck
2012-05-02 16:19 ` Eric Dumazet
2012-05-02 16:27 ` Eric Dumazet
2012-05-02 17:04 ` Alexander Duyck
2012-05-02 17:02 ` Alexander Duyck
2012-05-02 17:16 ` Rick Jones
2012-05-01 22:58 ` Alexander Duyck
2012-05-01 23:10 ` Alexander Duyck
2012-05-02 2:47 ` Eric Dumazet
2012-05-02 3:54 ` Eric Dumazet
2012-05-02 8:13 ` [PATCH net-next] net: take care of cloned skbs in tcp_try_coalesce() Eric Dumazet
2012-05-02 15:52 ` Alexander Duyck
2012-05-02 16:12 ` Eric Dumazet
2012-05-02 16:27 ` Alexander Duyck
2012-05-02 16:46 ` Eric Dumazet
2012-05-02 17:55 ` [PATCH v2 " Eric Dumazet
2012-05-02 19:58 ` [PATCH net-next] net: implement tcp coalescing in tcp_queue_rcv() Eric Dumazet
2012-05-02 20:11 ` Joe Perches
2012-05-02 20:23 ` Eric Dumazet
2012-05-02 20:34 ` Joe Perches
2012-05-03 0:32 ` David Miller
2012-05-03 1:11 ` David Miller
2012-05-03 2:14 ` Eric Dumazet
2012-05-03 2:21 ` David Miller
2012-05-03 1:11 ` [PATCH v2 net-next] net: take care of cloned skbs in tcp_try_coalesce() David Miller
2012-05-02 18:05 ` [PATCH " Alexander Duyck
2012-05-02 18:15 ` Eric Dumazet
2012-05-02 20:55 ` Alexander Duyck
2012-05-03 1:52 ` Eric Dumazet
2012-05-03 3:00 ` Alexander Duyck
2012-05-03 3:14 ` Eric Dumazet
2012-05-03 3:28 ` Alexander Duyck
2012-05-01 1:48 ` [PATCH 3/4 v2 net-next] net: make GRO aware of skb->head_frag David Miller
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