Date: Tue, 21 Dec 2010 20:48:30 +0600 From: Eugene Grosbein <egrosbein@rdtc.ru> To: Fabien Thomas <fabien.thomas@netasq.com> Cc: net@freebsd.org Subject: Re: lagg/lacp poor traffic distribution Message-ID: <4D10BE3E.6030506@rdtc.ru> In-Reply-To: <90F64F73-F9A8-4FD6-9303-2FC0D3424751@netasq.com> References: <4D0CFEFF.3000902@rdtc.ru> <1292844095.1917.136.camel@stormi> <4D1083D6.6010707@rdtc.ru> <84530C06-AC2E-4E2B-BFD4-693902BB0FA6@netasq.com> <4D10B2F4.1060404@rdtc.ru> <90F64F73-F9A8-4FD6-9303-2FC0D3424751@netasq.com>
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On 21.12.2010 20:41, Fabien Thomas wrote: >>>> 1. Is it a bug or design problem? >>> >>> How many queues have you with igb? If it's one it will explain why the flowid is bad for load balancing with lagg. >> >> How do I know? I've read igb(4) manual page and found no words > vmstat -i will show the queue (intr for the queue) normally it's the number of CPU available. # vmstat -i interrupt total rate irq5: uart2 8 0 irq18: ehci0 uhci5+ 2 0 irq19: uhci2 uhci4+ 2182 0 irq23: uhci3 ehci1 124 0 cpu0: timer 39576224 1993 irq256: em0:rx 0 115571349 5822 irq257: em0:tx 0 136632905 6883 irq259: em1:rx 0 115829181 5835 irq260: em1:tx 0 138838991 6994 irq262: igb0:que 0 157354922 7927 irq263: igb0:que 1 577369 29 irq264: igb0:que 2 280207 14 irq265: igb0:que 3 241826 12 irq266: igb0:link 2 0 irq267: igb1:que 0 164620363 8293 irq268: igb1:que 1 238678 12 irq269: igb1:que 2 248478 12 irq270: igb1:que 3 762453 38 irq271: igb1:link 3 0 cpu2: timer 39576052 1993 cpu3: timer 39576095 1993 cpu1: timer 39575913 1993 Total 989503327 49849 It seems I have four queues per igb card but only one of them works? Eugene Grosbein
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