Re: [Cake] [PATCH net-next v14 6/7] sch_cake: Add overhead compensation support to the rate shaper

Marcelo Ricardo Leitner writes: > On Tue, May 22, 2018 at 10:44:53AM +0200, Toke Høiland-Jørgensen wrote: >> >> >> On 22 May 2018 01:45:13 CEST, Marcelo Ricardo Leitner >> wrote: >> >On Mon, May 21, 2018 at 10:35:58PM +0200, Toke

Re: [Cake] [PATCH net-next v14 6/7] sch_cake: Add overhead compensation support to the rate shaper

On Tue, May 22, 2018 at 10:44:53AM +0200, Toke Høiland-Jørgensen wrote: > > > On 22 May 2018 01:45:13 CEST, Marcelo Ricardo Leitner > wrote: > >On Mon, May 21, 2018 at 10:35:58PM +0200, Toke Høiland-Jørgensen wrote: > >> +static u32 cake_overhead(struct

Re: [Cake] [PATCH net-next v15 4/7] sch_cake: Add NAT awareness to packet classifier

Pablo Neira Ayuso writes: > Hi Toke, > > On Tue, May 22, 2018 at 03:57:38PM +0200, Toke Høiland-Jørgensen wrote: >> When CAKE is deployed on a gateway that also performs NAT (which is a >> common deployment mode), the host fairness mechanism cannot distinguish >> internal

Re: [Cake] [PATCH net-next v15 4/7] sch_cake: Add NAT awareness to packet classifier

Hi Toke, On Tue, May 22, 2018 at 03:57:38PM +0200, Toke Høiland-Jørgensen wrote: > When CAKE is deployed on a gateway that also performs NAT (which is a > common deployment mode), the host fairness mechanism cannot distinguish > internal hosts from each other, and so fails to work correctly. > >

[Cake] [PATCH net-next v15 1/7] sched: Add Common Applications Kept Enhanced (cake) qdisc

sch_cake targets the home router use case and is intended to squeeze the most bandwidth and latency out of even the slowest ISP links and routers, while presenting an API simple enough that even an ISP can configure it. Example of use on a cable ISP uplink: tc qdisc add dev eth0 cake bandwidth

[Cake] [PATCH net-next v15 3/7] sch_cake: Add optional ACK filter

The ACK filter is an optional feature of CAKE which is designed to improve performance on links with very asymmetrical rate limits. On such links (which are unfortunately quite prevalent, especially for DSL and cable subscribers), the downstream throughput can be limited by the number of ACKs

[Cake] [PATCH net-next v15 5/7] sch_cake: Add DiffServ handling

This adds support for DiffServ-based priority queueing to CAKE. If the shaper is in use, each priority tier gets its own virtual clock, which limits that tier's rate to a fraction of the overall shaped rate, to discourage trying to game the priority mechanism. CAKE defaults to a simple,

[Cake] [PATCH net-next v15 2/7] sch_cake: Add ingress mode

The ingress mode is meant to be enabled when CAKE runs downlink of the actual bottleneck (such as on an IFB device). The mode changes the shaper to also account dropped packets to the shaped rate, as these have already traversed the bottleneck. Enabling ingress mode will also tune the AQM to

[Cake] [PATCH net-next v15 4/7] sch_cake: Add NAT awareness to packet classifier

When CAKE is deployed on a gateway that also performs NAT (which is a common deployment mode), the host fairness mechanism cannot distinguish internal hosts from each other, and so fails to work correctly. To fix this, we add an optional NAT awareness mode, which will query the kernel conntrack

[Cake] [PATCH net-next v15 0/7] sched: Add Common Applications Kept Enhanced (cake) qdisc

This patch series adds the CAKE qdisc, and has been split up to ease review. I have attempted to split out each configurable feature into its own patch. The first commit adds the base shaper and packet scheduler, while subsequent commits add the optional features. The full userspace API and most

[Cake] [PATCH net-next v15 7/7] sch_cake: Conditionally split GSO segments

At lower bandwidths, the transmission time of a single GSO segment can add an unacceptable amount of latency due to HOL blocking. Furthermore, with a software shaper, any tuning mechanism employed by the kernel to control the maximum size of GSO segments is thrown off by the artificial limit on

Re: [Cake] [PATCH net-next v14 4/7] sch_cake: Add NAT awareness to packet classifier

On 22 May 2018 01:34:06 CEST, Marcelo Ricardo Leitner wrote: >[Cc'ing netfilter-devel@ for awareness] Thanks! I'll add a Cc in the next version. >On Mon, May 21, 2018 at 10:35:58PM +0200, Toke Høiland-Jørgensen wrote: >> When CAKE is deployed on a gateway that also