[Codel] [PATCH net-next] codel: use Newton method instead of sqrt() and divides

[Roger Jørgensen]

On Mon, May 14, 2012 at 5:05 PM, Dave Taht <dave.taht at gmail.com> wrote:
> On Mon, May 14, 2012 at 4:34 AM, Roger Jørgensen <rogerj at gmail.com> wrote:
<snip>

>>                         rtt min    avg     max     mdev    bw test showing
>> plain                  1,037      2,327  5,123   0,558    2,4Gbps
>> TBF                   1,529      2,87   8,275   0,547    1,5Gbps
>> fq_codel +ecn     0,907     1,82    5,214   0,547    1,4Gbps
>> fq_codel noec     0,905     1,913   4,95    0,586   1,4Gbps
>
>
> I find your results mildly puzzling. certainly your max rtt in the no
> ecn case is pleasing,
> but your max throughput in all three AQM cases seems to be rather
> severely capped.

I did try to capp the bandwidth,  (that's why the values for fq_codel
is as they are), the idea was to limit the bw and see how the pingtime
vary with that. Turns out that bw capping give better pingtime than no
capping :-)

and since I can see how it work I'll try to run it on a linux box
acting as gateway for a wireless guestnetwork to see it under real
load :-)



<snip>

-- 

Roger Jorgensen           | ROJO9-RIPE
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