[OpenWrt-Devel] [Make-wifi-fast] OpenWRT wrong adjustment of fq_codel defaults (Was: [Codel] fq_codel_drop vs a udp flood)

[Roman Yeryomin]

On 16 May 2016 at 11:12, David Lang <david at lang.hm> wrote:
> On Mon, 16 May 2016, Roman Yeryomin wrote:
>
>> On 6 May 2016 at 22:43, Dave Taht <dave.taht at gmail.com> wrote:
>>>
>>> On Fri, May 6, 2016 at 11:56 AM, Roman Yeryomin <leroi.lists at gmail.com>
>>> wrote:
>>>>
>>>> On 6 May 2016 at 21:43, Roman Yeryomin <leroi.lists at gmail.com> wrote:
>>>>>
>>>>> On 6 May 2016 at 15:47, Jesper Dangaard Brouer <brouer at redhat.com>
>>>>> wrote:
>>>>>>
>>>>>>
>>
>>> That is too low a limit, also, for normal use. And:
>>> for the purpose of this particular UDP test, flows 16 is ok, but not
>>> ideal.
>>
>>
>> I played with different combinations, it doesn't make any
>> (significant) difference: 20-30Mbps, not more.
>> What numbers would you propose?
>
>
> How many different flows did you have going at once? I believe that the
> reason for higher numbers isn't for throughput, but to allow for more flows
> to be isolated from each other. If you have too few buckets, different flows
> will end up being combined into one bucket so that one will affect the other
> more.

I'm testing with one flow, I never saw bigger performance with more
flows (e.g. -P8 to iperf3).

Regards,
Roman
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