[Cake] [Codel] Proposing COBALT

[Loganaden Velvindron]

On Tue, May 24, 2016 at 8:02 PM, Dave Taht <dave.taht at gmail.com> wrote:
> On Tue, May 24, 2016 at 9:56 AM, Jonathan Morton <chromatix99 at gmail.com> wrote:
>>
>>> On 24 May, 2016, at 18:52, Dave Täht <dave at taht.net> wrote:
>>>
>>> My last attempts with cake the way it was had it performing miserably at
>>> longer RTTs (try 50ms) vs codel or fq-codel - as in half the throughput
>>> achieved by codel, at that RTT.
>>
>> Was that before or after I found and fixed the invsqrt cache bug yesterday?
>
> That was back in december, when I had also ripped out the invsqrt
> cache entirely with things like "bcake".
>
> (I still do not see any point to the invsqrt cache, nor )
>
> I did some informal testing of recent cakes about a month back.. and
> went back to fq_codel. cake ate too much cpu, queue depth was longer,
> throughput at 50ms or longer, worse.
>
> I decided that I'd much rather work on wifi.
>
> Please test at longer rtts.
>

In African countries, we have large RTTs to Europe/US, and I think
that this is going to be an interesting testbed :)