> On 18 Jun 2025, at 7:22 PM, Paul Goyette <p...@whooppee.com> wrote:
>
> On Wed, 18 Jun 2025, Emmanuel Nyarko wrote:
>
>> Hi all,
>>
>> I have already spoken to a few developers about this and now want to make
>> everyone aware.
>>
>> The current state of ALTQ:
>> ALTQ code is very large with so maany queueing disciplines.
>>
>> The state of the art per my research is Fair Queuing CoDel FQ-Codel.(i did
>> the work in making CoDel work in netbsd).
>>
>> The previous disciplines are not well maintained and adding another
>> discipline makes it worse(maintainability).
>>
>> i want to update it to FQ-CoDel and bring it in now so we use it as our
>> primary and maybe only active queue managements.
>>
>> How do i want to bring it in ?
>> 1. Remove all the existing disciplines (openBSD has taken this step already)
>> 2. Use fq-codel which is easy to configure with fewer parameters and proves
>> to be very effecitve in mitigating bufferbloat
>> 3. modularize it (so we don’t have to recompile kernel anytime one wants to
>> use it. as opposed to the current)
>> 4. find a way to write tests for it
>> 5. update the docs.
>>
>> Modularizing:
>> this will also help for easy integration into NPF.
>> all points of contacts to ALTQ will be changed to agree with the decision
>> eg: in if_inittialise( when a new network device is connected) and also when
>> detached for each network interface.
>>
>>
>> Hence, we can have a modular, and smaller quality of service codebase to use
>> and maintain.
>
> Please note that we also need to modularize the ALTQ code itself, preferably
> prior to modularizing the queueing disciplines. I looked
> at it once a while ago, but did not proceed due to lack of knowledge
> re ALTQ itself.
Yess, also get it in rump too. Modularizing it as it is now is complex. we will
even have to remove some #ifdef blocks in the network stack as well.
so i just want to have just codel. no #ifdef blocks, just either simple have it
in base during boot, or modload it when you need it.
>
> Good luck!
>
>
> +---------------------+--------------------------+----------------------+
> | Paul Goyette (.sig) | PGP Key fingerprint: | E-mail addresses: |
> | (Retired) | 1B11 1849 721C 56C8 F63A | p...@whooppee.com |
> | Software Developer | 6E2E 05FD 15CE 9F2D 5102 | pgoye...@netbsd.org |
> | & Network Engineer | | pgoyett...@gmail.com |
> +---------------------+--------------------------+----------------------+
Emmanuel
