[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <D12839161ADD3A4B8DA63D1A134D084026E49536AF@ESGSCCMS0001.eapac.ericsson.se>
Date: Thu, 14 Apr 2011 14:58:38 +0800
From: Wei Gu <wei.gu@...csson.com>
To: Eric Dumazet <eric.dumazet@...il.com>
CC: Alexander Duyck <alexander.h.duyck@...el.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
netdev <netdev@...r.kernel.org>,
"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>
Subject: RE: Low performance Intel 10GE NIC (3.2.10) on 2.6.38 Kernel
I did the single flow test, it shows no rx error with 300kpps. While I was start multiple flow with same 300Kpps traffic, then it looks really bad with high rx_missing_error.
Multiple Flow:
SUM: 191925 ETH8: 0 ETH10: 191925 ETH6: 0 ETH4: 0
SUM: 214634 ETH8: 0 ETH10: 214634 ETH6: 0 ETH4: 0
SUM: 237600 ETH8: 0 ETH10: 237600 ETH6: 0 ETH4: 0
SUM: 198925 ETH8: 0 ETH10: 198925 ETH6: 0 ETH4: 0
SUM: 249290 ETH8: 0 ETH10: 249290 ETH6: 0 ETH4: 0
Single Flow:
SUM: 302018 ETH8: 0 ETH10: 302018 ETH6: 0 ETH4: 0
SUM: 301849 ETH8: 0 ETH10: 301849 ETH6: 0 ETH4: 0
SUM: 302163 ETH8: 0 ETH10: 302163 ETH6: 0 ETH4: 0
Thanks
WeiGu
-----Original Message-----
From: Eric Dumazet [mailto:eric.dumazet@...il.com]
Sent: Thursday, April 14, 2011 2:34 PM
To: Wei Gu
Cc: Alexander Duyck; Peter Zijlstra; netdev; Kirsher, Jeffrey T
Subject: RE: Low performance Intel 10GE NIC (3.2.10) on 2.6.38 Kernel
Le jeudi 14 avril 2011 à 08:07 +0200, Eric Dumazet a écrit :
> Le jeudi 14 avril 2011 à 13:42 +0800, Wei Gu a écrit :
> > Hi guys,
> > Do you think it was a bug in the kernel from 2.6.35.2 with Intel 10GE ixgbe driver?
> > If so shall I issue a Bug on the bugzilla, and which category? Cause I'm not sure it was driver problem Or sched problem.
>
> This makes no sense to me.
>
> What is the maximum throughput you can get in pps before having packet
> drops ?
>
> Please try with a single flow (to hit one queue, one cpu)
>
> Thanks
>
Also, please try to check if using smaller or bigger packets makes any change in this max throughput
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists