[Codel] The next slice of cake

[Jonathan Morton]

> On 30 Mar, 2015, at 22:28, Dave Taht <dave.taht at gmail.com> wrote:
> 
>> I made a lot of progress over the weekend, and got cake3 running on a sacrificial box today.  No crashes yet!
> 
> Preliminary patches always appreciated. I plan to do a build thursday
> for a test cycle this weekend of various things.

Have a go with this, then.  I took the time to do quite a lot of little cleanup things, such as suppressing the statistics output of classes that are not in use.

Tests on the Pentium-MMX show similar throughput and latency capabilities to the first version of cake, but this version has more robust behaviour in high-traffic situations - and the Diffserv logic is also far more useful.  I’m working towards getting OProfile running on at least one of my desktop-type machines; hopefully it’ll work sufficiently well on the Pentium-MMX, since that’s the easiest one to drive into saturation.

The kernel patch applies on top of the previous one, but the iproute2 patch should apply to stock.  Note that the current git version of iproute2 seems to have a problem with displaying the stats from an ingress filter.

 - Jonathan Morton

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