[Cake] trying to figure out differences between tbf and cake

[Cake] trying to figure out differences between tbf and cake

[Dave Taht]

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Same test, same duration, same bandwidth settings, totally repeatable
difference in results.

This is either a good result for cake or an erroneous one, or some
difference between how tbf
calcs things....

See:

qdisc cake 1: root refcnt 2 bandwidth 100Mbit besteffort flows rtt 100.0ms raw
 Sent 1724379667 bytes 1697970 pkt (dropped 180, overlimits 4465993 requeues 0)
 backlog 0b 0p requeues 0

vs

qdisc tbf 1: root refcnt 2 rate 100Mbit burst 1512b lat 100.0ms
 Sent 1658721817 bytes 1633977 pkt (dropped 185, overlimits 4495969 requeues 0)
 backlog 0b 0p requeues 0


scale=10
1658721817/1724379667
.9619237855


Dave Täht
Let's go make home routers and wifi faster! With better software!
https://www.gofundme.com/savewifi

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Re: [Cake] trying to figure out differences between tbf and cake

[Jonathan Morton]

> On 18 Nov, 2015, at 14:25, Dave Taht <dave.taht@gmail.com> wrote:
> 
> qdisc tbf 1: root refcnt 2 rate 100Mbit burst 1512b lat 100.0ms

Looks like a really small burst parameter.  This corresponds to the “leaky bucket pool” in my previous post.

 - Jonathan Morton