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Date: Tue, 12 Jun 2012 11:01:23 +0200 From: Jean-Michel Hautbois <jhautbois@...il.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Sathya.Perla@...lex.com, netdev@...r.kernel.org Subject: Re: Difficulties to get 1Gbps on be2net ethernet card 2012/6/12 Eric Dumazet <eric.dumazet@...il.com>: > On Tue, 2012-06-12 at 10:24 +0200, Jean-Michel Hautbois wrote: >> 2012/6/8 Jean-Michel Hautbois <jhautbois@...il.com>: >> > 2012/6/8 Eric Dumazet <eric.dumazet@...il.com>: >> >> 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) >> >> >> >> >> >> >> > >> > On the old kernel, there is nothing returned by this command. >> > >> > JM >> >> I used perf in order to get more information. > > What happens if you force some traffic in the other way (say 50.000 > (small) packets per second in RX) while doing your tests ? > Can I do that using netperf ? -- 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
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