netdev - Re: Difficulties to get 1Gbps on be2net ethernet card

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Date:	Fri, 08 Jun 2012 10:22:39 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jean-Michel Hautbois <jhautbois@...il.com>
Cc:	Sathya.Perla@...lex.com, netdev@...r.kernel.org
Subject: Re: Difficulties to get 1Gbps on be2net ethernet card

On Fri, 2012-06-08 at 10:14 +0200, Jean-Michel Hautbois wrote:
> 2012/6/8 Eric Dumazet <eric.dumazet@...il.com>:
> > On Thu, 2012-06-07 at 14:54 +0200, Jean-Michel Hautbois wrote:
> >
> >> eth1      Link encap:Ethernet  HWaddr 68:b5:99:b9:8d:d4
> >>           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:4096  Metric:1
> >>           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> >>           TX packets:15215387 errors:0 dropped:0 overruns:0 carrier:0
> >>           collisions:0 txqueuelen:1000
> >>           RX bytes:0 (0.0 B)  TX bytes:61476524359 (57.2 GiB)
> >
> >> qdisc mq 0: dev eth1 root
> >>  Sent 61476524359 bytes 15215387 pkt (dropped 45683472, overlimits 0
> >> requeues 17480)
> >
> > OK, and "tc -s -d cl show dev eth1"
> >
> > (How many queues are really used)
> >
> >
> >
> 
> tc -s -d cl show dev eth1
> class mq :1 root
>  Sent 9798071746 bytes 2425410 pkt (dropped 3442405, overlimits 0 requeues 2747)
>  backlog 0b 0p requeues 2747
> class mq :2 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :3 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :4 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :5 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :6 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :7 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0
> class mq :8 root
>  Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
>  backlog 0b 0p requeues 0


Do you have the same distribution on old kernels as well ?
(ie only queue 0 is used)



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