Re: [Cake] [Make-wifi-fast] [Starlink] [Cerowrt-devel] Due Aug 2: Internet Quality workshop CFP for the internet architecture board

2021-07-09 Thread Luca Muscariello
For those who might be interested in Little's law there is a nice paper by John Little on the occasion of the 50th anniversary of the result. https://www.informs.org/Blogs/Operations-Research-Forum/Little-s-Law-as-Viewed-on-its-50th-Anniversary

[Cake] quantum configuration

2020-07-21 Thread Luca Muscariello
Is there a reason why in cake the quantum cannot be configured to a different value like in fq_codel? ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Advantages to tightly tuning latency

2020-04-22 Thread Luca Muscariello
On Wed, Apr 22, 2020 at 4:48 PM Dave Taht wrote: > On Wed, Apr 22, 2020 at 2:04 AM Luca Muscariello > wrote: > > > > > > > > On Wed, Apr 22, 2020 at 12:44 AM Dave Taht wrote: > >> > >> On Tue, Apr 21, 2020 at 3:33 PM Jonathan Morton >

Re: [Cake] Advantages to tightly tuning latency

2020-04-22 Thread Luca Muscariello
On Wed, Apr 22, 2020 at 12:44 AM Dave Taht wrote: > On Tue, Apr 21, 2020 at 3:33 PM Jonathan Morton > wrote: > > > > > On 22 Apr, 2020, at 1:25 am, Thibaut wrote: > > > > > > My curiosity is piqued. Can you elaborate on this? What does free.fr > do? > > > > They're a large French ISP. They

Re: [Cake] [Ecn-sane] three new internet drafts regarding SCE

2019-07-17 Thread Luca Muscariello
Remote attendance is free of charge but you have to register to be able to access. https://www.ietf.org/registration/ietf105/remotereg.py On Wed, Jul 17, 2019 at 3:13 PM Dave Taht wrote: > IETF 105 runs from July 20-27th in Montreal. > > https://datatracker.ietf.org/meeting/105/agenda/ > >

Re: [Cake] The two SCE tests I have in mind

2019-03-24 Thread Luca Muscariello
We have done something like that a year ago in our team in Cisco for a project that you Dave are aware of but that is out of scope for these lists. It is important to have vantage points in residential and enterprise networks. Cloud to Cloud never goes to transit and the big Clouds have global

Re: [Cake] paper: per flow fairness in a data center network

2018-12-13 Thread Luca Muscariello
I disagree on the claims that DC switches do not implement anything. They do, from quite some time now. https://www.cisco.com/c/en/us/products/collateral/switches/nexus-9000-series-switches/white-paper-c11-738488.html On Thu, Dec 6, 2018 at 4:19 AM Dave Taht wrote: > While I strongly agree

Re: [Cake] [Make-wifi-fast] Van Jacobson's slides on timing wheels at netdevconf

2018-07-20 Thread Luca Muscariello
and C) you can implement any packet scheduler using a timing wheel using virtual times. On Fri, Jul 20, 2018 at 4:09 PM Dave Taht wrote: > > https://www.files.netdevconf.org/d/46def75c2ef345809bbe/files/?p=/Evolving%20from%20AFAP%20%E2%80%93%20Teaching%20NICs%20about%20time.pdf > > Talking

Re: [Cake] lanman2018 cake talk ideas

2018-06-20 Thread Luca Muscariello
In my opinion, you should introduce the challenges faced to get to this point a little bit more. There has been an historically difficult insertion of packet scheduling in the Internet. FQ in the first place has suffered ostracism for a number of reasons, some acceptable criticism, some others

Re: [Cake] A few puzzling Cake results

2018-04-19 Thread Luca Muscariello
I don't think that this feature really hurts TCP. TCP is robust to that in any case. Even if there is avg RTT increase and stddev RTT increase. And, I agree that what is more important is the performance of sparse flows, which is not affected by this feature. There is one little thing that might

Re: [Cake] A few puzzling Cake results

2018-04-19 Thread Luca Muscariello
I think that this discussion is about trying to solve an almost impossible problem. When the link is in overload, and this is the case, there is nothing one can do with flow queuing or AQM. It is just too late to make something useful. Overload means that the number of active backlogged flows is

Re: [Cake] A few puzzling Cake results

2018-04-17 Thread Luca Muscariello
of a sparse flow loses priority because of the quantum. Bad setting, higher probability, ideal setting 0 probability. So your formula seems still wrong to me... On Tue, Apr 17, 2018 at 4:25 PM, Toke Høiland-Jørgensen <t...@toke.dk> wrote: > Luca Muscariello <luca.muscarie...@gmail

Re: [Cake] A few puzzling Cake results

2018-04-17 Thread Luca Muscariello
I'm not sure that the quantum correction factor is correct. On Tue, Apr 17, 2018 at 2:22 PM, Toke Høiland-Jørgensen wrote: > Y via Cake writes: > > > From: Y > > Subject: Re: [Cake] A few puzzling Cake results > > To:

Re: [Cake] A few puzzling Cake results

2018-04-17 Thread Luca Muscariello
It is more complex than that. The general formula is the max-min fair-rate. The formula Toke has provided works only if you have one single sparse flow s and all the others are bottlenecked at this link. I.e. the experiment he has reported. If you have N_s sparse flows and each consumers R_s,i

Re: [Cake] Modification of DRR with deficit saving

2018-01-04 Thread Luca Muscariello
That is a big mountain to climb On Thu, Jan 4, 2018 at 5:20 PM, Dave Taht wrote: > > Done fixing the home. It's time to fix the rest of the internet. And > that's not just queue theory but address assignment and routing. > Here's > a traceroute from where I sit in Nicaragua

Re: [Cake] Modification of DRR with deficit saving

2018-01-04 Thread Luca Muscariello
4, 2018 at 7:23 AM, Luca Muscariello > <luca.muscarie...@gmail.com> wrote: > > I think the closest scheduler to Cake is this one, if I have to compare: > > > > https://team.inria.fr/rap/files/2013/12/KOR05.pdf > > Try as I might, at workloads that I've been able to crea

Re: [Cake] Modification of DRR with deficit saving

2018-01-04 Thread Luca Muscariello
I think the closest scheduler to Cake is this one, if I have to compare: https://team.inria.fr/rap/files/2013/12/KOR05.pdf J. Roberts et al. Implicit Service Differentiation using Deficit Round Robin, In Proc of ITC 2005. Luca On Thu, Jan 4, 2018 at 4:01 PM, Jonathan Morton