netdev - Re: Adding new packet scheduler

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Message-ID: <CAHmvzZS3bN1qErryz7Mps-dOveBk1_d7MJo-sqbVDMaoeu7_HA@mail.gmail.com>
Date:	Mon, 20 Oct 2014 13:51:18 -0400
From:	Josh Clark <jcinma@...il.com>
To:	Cong Wang <cwang@...pensource.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: Adding new packet scheduler

On Mon, Oct 20, 2014 at 1:37 PM, Cong Wang <cwang@...pensource.com> wrote:
> On Mon, Oct 20, 2014 at 10:32 AM, Josh Clark <jcinma@...il.com> wrote:
>> Hi everyone,
>>
>> I'm a student at NC State University, and I'm working on a project to
>> implement some new classful AQM algorithms and test their
>> effectiveness. However, I'm getting hung up on how to get the new
>> algorithm set up in the kernel.
>>
>> From what I've looked at, it looks like I need to add my code to
>> /net/sched/, and edit both the Kconfig and the Makefile to be able to
>> add my code as another module.
>
> Basically yes, take a look at:
> http://lwn.net/Articles/577208/
>
>>
>> Finally, in order to use the new scheduler, I need to select it using
>> the tc command. What do I need to do to add my algorithm to the tc
>> command options?
>
> Read the existing qdisc's in tc, for example:
> http://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git/tree/tc/q_fq.c

That all makes a lot of sense. What do I need to do to apply these
patches on a live system? I have access to a network made of virtual
machines with standard Ubuntu 14.04, to which I have SSH access.
There's no way for me to upload a different image to use.
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