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SubjectRe: NET_SCHED cbq dropping too many packets on a bonding interface
On Thu, May 15, 2008 at 08:32:44PM +0200, Patrick McHardy wrote:
> Jarek Poplawski wrote:
>> On Thu, May 15, 2008 at 06:09:36PM +0200, Patrick McHardy wrote:
>> ...
>>> Do things improve if you set txqueuelen to a larger value
>>> *before* configuring the qdiscs?
>>
>> BTW, I hope it was *before*, but since pfifo_fast_enqueue() uses
>> "qdisc->dev->tx_queue_len" does it really matter? (Until it's
>> before the test of course...)
>
>
> Yes, CBQ uses pfifo, not pfifo_fast. pfifo uses txqueuelen
> to inialize q->limit, but thats whats used during ->enqueue().

...My bad! I missed this and this (only!?) seems to explain this
puzzle. So, I hope it was really because *not before* (and not only
size matters...)

Thanks,
Jarek P.


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