Re: [Cake] [Codel] Proposing COBALT

2016-06-03 Thread Jonathan Morton
ve flows. Part of that investigation may be to enquire as to whether DCTCP is in fact in use. If so, the TCP Prague people should be brought into the loop, as this would constitute evidence that Codel can’t control DCTCP via ECN under practical Internet conditions. -

Re: [Cake] Possible BUG - parent backlog incorrectly updated in case of NET_XMIT_CN

2016-06-07 Thread Jonathan Morton
he backlogs of parents failed." then it's not an 'obvious to solve' > problem :-) It appears my code already handles it correctly. This is most likely because it inherited the analogous handling from the old function called here. - Jonathan Morton _

Re: [Cake] Possible BUG - parent backlog incorrectly updated in case of NET_XMIT_CN

2016-06-12 Thread Jonathan Morton
ouldn’t be segmented). For the time being, I have changed my development branch of Cake to always signal case 1 except for the error case. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] New to cake. Some questions

2016-06-09 Thread Jonathan Morton
and accepted as far as I’m concerned; the worst corner cases are with very small packets, which frankly matter less. If you don’t want overcompensation, figure out what the real overhead is and set that. - Jonathan Morton ___ Cake maili

Re: [Cake] New to cake. Some questions

2016-06-09 Thread Jonathan Morton
exceeds its fair share of the link, which is unlikely for a well-designed, lightweight protocol. We really should make an effort to put a more intuitive GUI interface on this. These questions indicate a user overwhelmed by many options without guidance. - Jonathan Morton

Re: [Cake] [Codel] Proposing COBALT

2016-06-04 Thread Jonathan Morton
red a second such mechanism, though a much blunter one; it is significantly superior to tail-drop for two major reasons, but can easily result in burst loss. It is also this overflow which acts as the up-trigger for BLUE; the longest queue not only gets the instant head-drop but a notification t

Re: [Cake] [Codel] Proposing COBALT

2016-06-04 Thread Jonathan Morton
as here, when I get it to actually work. As for who these servers are: Valve Software’s Steam platform. I did say they were large and popular. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [Codel] Proposing COBALT

2016-06-04 Thread Jonathan Morton
> On 4 Jun, 2016, at 17:01, moeller0 wrote: > > Maybe cake should allow to switch from the default mark by ECN policy to mark > by drop per command line argument? At least that would allow much easier in > the field testing… As is there is only the option of disabling ECN at

Re: [Cake] cake separate qos for lan

2016-03-31 Thread Jonathan Morton
on if we can’t get anything else to work. I’m also thinking of cleaner ways to do this by means of adding code, rather than masses of configuration. It really shouldn’t be this hard to produce a working setup. - Jonathan Morton ___ Cake

Re: [Cake] new code point proposed

2016-04-05 Thread Jonathan Morton
of the window. I propose retaining the standard “target” parameter on Tin 2 to avoid triggering AQM with a single large packet, but reducing “interval” to make Codel’s behaviour more suitable for UDP and DCTCP traffic. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake separate qos for lan

2016-03-27 Thread Jonathan Morton
UTING -o ppp0 -s $CACHE_IP -j IMQ —todev 0 That reminds me - we need to update the documentation to properly describe the overhead and triple-isolation keywords. You might need a different overhead setting than “pppoe-vcmux” depending on the details

Re: [Cake] cake separate qos for lan

2016-03-26 Thread Jonathan Morton
the point where the router is fitted, or is it within the router, or off to the side on a separate port? Also, the command shown will apply a limit to *egress* traffic on the given port. If you need to do *ingress* shaping, there’s a different sequence of commands. - Jonathan Morton __

Re: [Cake] cake separate qos for lan

2016-03-28 Thread Jonathan Morton
doing the right thing - simply because iptables is that much more flexible than the u32 filter. But maybe u32, in the hashing configuration, scales better. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Proposing COBALT

2016-05-20 Thread Jonathan Morton
both in a position to examine packet traces associated with each test. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [Codel] Proposing COBALT

2016-05-24 Thread Jonathan Morton
are no spurious drop events. The code is in the sch_cake repo if you want to examine the details. I promise it’s a lot easier to read than the original Codel code. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake, codel5.h, ecn marking & dropping. Confused

2016-05-04 Thread Jonathan Morton
ust in case it was a mixed ECT/Not-ECT stream; strenuous efforts to get the congestion signal heard as early as possible. This is more likely when flow isolation isn’t in use, or when it is per-host instead of per-flow. That’s also why the first attempt to set CE

Re: [Cake] Fwd: [Codel] fq_codel_drop vs a udp flood

2016-05-06 Thread Jonathan Morton
> On 6 May, 2016, at 22:14, David Lang <da...@lang.hm> wrote: > > On Fri, 6 May 2016, Jonathan Morton wrote: > >>> On 6 May, 2016, at 21:50, David Lang <da...@lang.hm> wrote: >>> >>> what IP id are you referring to? I don't remember an

Re: [Cake] [Codel] Proposing COBALT

2016-06-28 Thread Jonathan Morton
on my PowerBook’s screen. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] flow dissector idea/enhancement - help

2016-06-30 Thread Jonathan Morton
, or is actually triggered by the query rather than passing to some specific stage of processing. I have other work to do on the host and flow processing, but I think that’ll be independent of the hash function, which is where you want to be looking. - Jonathan Morton _

Re: [Cake] conntrack lookup continuation

2017-02-03 Thread Jonathan Morton
e, that should not be difficult. For the moment however, I’ve got my hands full with writing a report on performance tests I’ve been running, and then getting reacquainted with some code changes that happened while I was looking elsewhere. - Jonathan Morton ___

Re: [Cake] conntrack lookup continuation

2017-01-31 Thread Jonathan Morton
ic leaves throu canke tin#x, the conntrack entry will get a > fwmark and return traffic is put in the corresponding tin/bin on the ingress > cake. That’s an interesting idea. At this point I don’t know how easy it is to implement, though. Certainly we need to clean up some other

Re: [Cake] diffserv3 tin 2 target 50% of interval?

2017-02-22 Thread Jonathan Morton
l tins with bulk data, which means the Voice tin in particular is running in deprioritised mode. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] diffserv3 tin 2 target 50% of interval?

2017-02-22 Thread Jonathan Morton
c. It looks like you still aren’t using the latest version of tc, as that identifies the three tins as “Bulk”, “Best Effort”, and “Voice”, rather than numerically. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.buf

Re: [Cake] Cake latency update

2017-02-09 Thread Jonathan Morton
o other qdiscs. I gather this time you’re comparing it against the mac80211 fq_codel, rather than a conventional qdisc stack? - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Cake latency update

2017-02-10 Thread Jonathan Morton
> On 10 Feb, 2017, at 11:21, Pete Heist <petehe...@gmail.com> wrote: > > Here are the results at various bitrates (all half-duplex rate limiting on > this CPU). Hold on a minute. What does “half-duplex rate limiting” mean exactly?

Re: [Cake] Cake latency update

2017-02-10 Thread Jonathan Morton
uce it here. Does the problem go away if you use a wired link with the same setup otherwise? Or is that inconvenient to try? I have some ath9k equipped machines, but they would need to be set up. - Jonathan Morton ___ Cake mailing list Cake@lists.buf

Re: [Cake] [Make-wifi-fast] Flent results for point-to-point Wi-Fi on LEDE/OM2P-HS available

2017-02-16 Thread Jonathan Morton
e “besteffort” and “diffserv3” cases, the DSCP may be interpreted independently by the NIC as well as Cake. In the case of wifi, this affects the medium grant latency and priority. If the link isn’t saturated, this shouldn’t affect Cake’s prioritisation strategy much if at all, but it does have im

Re: [Cake] cake at longer rtts

2017-01-17 Thread Jonathan Morton
get a little more throughput. However, this significantly reduces the latency control in ingress mode, because every slow-start is then uncontrolled for a full second. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] 5ms target hurting tcp throughput tweakable?

2017-02-26 Thread Jonathan Morton
interval, which makes the AQM less aggressive in general. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Putting cake under dsmark on ingress ifb

2017-02-26 Thread Jonathan Morton
doesn't, icmp goes to best effort. I suspect packets are queuing in cake first and only then going through dsmark. What happens if you reverse the nesting? - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Putting cake under dsmark on ingress ifb

2017-02-28 Thread Jonathan Morton
ly useful information - that a qdisc filter action can set DSCPs (albeit in this case by circuitous means). An action module which does that more directly would undoubtedly be easier to use and more efficient, but one doesn’t seem to exist yet. - Jonathan Morton ___

Re: [Cake] [RFC PATCH] Don't give malicious CE senders a free ride

2016-10-06 Thread Jonathan Morton
t in throughput, FQ keeps them from impacting other flows, and BLUE starts dropping if their window growth is unbounded. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] BUG_ON vs WARN_ON

2016-10-06 Thread Jonathan Morton
> On 6 Oct, 2016, at 07:19, Dave Taht <dave.t...@gmail.com> wrote: > > master Right - that’s stable code. I’m doing experimental stuff in the cobalt branch. - Jonathan Morton ___ Cake mailing list Cake@lists.buffer

Re: [Cake] BUG_ON vs WARN_ON

2016-10-05 Thread Jonathan Morton
one of my boxes froze the very first time I loaded it, but it’s been running fine ever since. Another machine is currently refusing to insert the module, claiming a wrong exec format. It’s all a bit bizarre. I do have a few more avenues of enquiry to explore, though

Re: [Cake] BUG_ON vs WARN_ON

2016-10-05 Thread Jonathan Morton
_swap() can probably go away completely - they were there to make sure the heap algorithms were working correctly. They never did trigger, as it happens. The other two are genuine serious bugs (array overflow) if they ever trigger. It’s safer to leave them as-is. - Jonathan Morton _

Re: [Cake] Master branch updated

2016-10-04 Thread Jonathan Morton
a CPU profile on real hardware - then I will reconsider. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] BUG_ON vs WARN_ON

2016-10-07 Thread Jonathan Morton
> On 7 Oct, 2016, at 16:27, Kevin Darbyshire-Bryant > <ke...@darbyshire-bryant.me.uk> wrote: > > It's now ok...so far :-) Okay. I think I’ve found a couple of other things to improve, so stand by… - Jonathan Morton ___ Cake

Re: [Cake] BUG_ON vs WARN_ON

2016-10-05 Thread Jonathan Morton
h I’m using as the count of flows attached to that host. It seems likely that it isn’t being maintained correctly in all cases, so it can wrap around past zero very soon after being attached, without needing much traffic. I’ll try to fix that, and put a sanity check in as well t

Re: [Cake] Master branch updated

2016-10-04 Thread Jonathan Morton
ith plenty of traffic over here - but it did crash the very first time I loaded it, just not the second. I will need to exercise it some more, preferably on a non-critical machine. - Jonathan Morton ___ Cake mailing list Cake@lists.

Re: [Cake] cake for net-next 4.8

2016-09-27 Thread Jonathan Morton
etion. Might help under sustained overload, but not in the common case. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] de-natting & host fairness

2016-09-27 Thread Jonathan Morton
while some CPUs do not execute large numbers of conditional moves very efficiently. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] de-natting & host fairness

2016-09-27 Thread Jonathan Morton
the configuration interface for the feature to a flag, which I’ll call “nat”. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake for net-next 4.8

2016-09-27 Thread Jonathan Morton
adding the footer? On the upside, I was able to add a filter specifically saying “never send to Spam folder”, and it appears to be working so far. But everyone probably needs to do that; it’s not a scalable solution, only a workaround. - Jonathan Morton __

Re: [Cake] cake for net-next 4.8

2016-09-27 Thread Jonathan Morton
e for non-BBR traffic. In these cases, I think you have to relax and let the FQ action take care of it. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake for net-next 4.8

2016-09-27 Thread Jonathan Morton
> On 27 Sep, 2016, at 22:29, Dave Taht wrote: > > OK, at some point, but I have to abandon the lab, it looks like: Yet another reason to be glad I live in a cold and slightly damp country. > https://groups.google.com/forum/#!topic/bbr-dev/VNUBKAeJSdc If BBR is not

Re: [Cake] de-natting & host fairness

2016-09-26 Thread Jonathan Morton
ly true for all modes except “flowblind” and “flows”. Also long overdue are the more subtle overhead compensation factor for PTM, and the two extra keywords for DOCSIS’ asymmetric overhead. - Jonathan Morton ___ Cake mailing list Cake@lists.

[Cake] Master branch updated

2016-10-04 Thread Jonathan Morton
the host deficits expire, and host deficit expiry should no longer be explicitly synchronised. See if, between you, you can break it before I get back from shopping. :-) - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https

Re: [Cake] Cake Diffserv8 Incorrect?

2016-11-06 Thread Jonathan Morton
That looks normal to me. If you really want a 1:1 mapping from CS to tin, you should use "precedence". But that's an obsolete interpretation of the TOS field. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat

Re: [Cake] diffserv based on firewall mark

2016-10-12 Thread Jonathan Morton
should loop the inbound traffic through a common IFB device (and attach Cake to that instead of the physical interfaces) to simplify configuration. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Master branch updated

2016-10-10 Thread Jonathan Morton
> On 4 Oct, 2016, at 19:28, Jonathan Morton <chromati...@gmail.com> wrote: > >> Ha ha! I don't know if you're back from shopping yet...and I'm not sure >> that I've broken it (cobalt branch)...but it has broken my router! > > Hmm. It’s been running all day wi

Re: [Cake] upstreaming cake in 2017?

2016-12-22 Thread Jonathan Morton
and will self-recover to peak performance after anomalous load spikes. This assumption is however likely to break down on backbones and major backhaul networks. Cake does support treating entire IP addresses as single flows, which may extend its appl

Re: [Cake] an experiment with an alternate hasher

2017-03-26 Thread Jonathan Morton
to use a popcnt instruction where present, and this algorithm otherwise. Obviously this will only be of any use if the resulting hash is of good quality. An obvious problem with popcnt is that inputs of 1, 2, 4, 8, etc have the same popcnt (1), and it is trivial for an attacker to exploit this propert

Re: [Cake] Choosing a tin to work on

2017-04-12 Thread Jonathan Morton
ith a packet due soonest. This should have the same type of “soft priority” behaviour as the previous WRR version, but I was hoping it could reduce the latency for processing sparse low-latency tins while under steady bulk load. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] A quick question about FQ_CoDel vs Cake

2017-04-06 Thread Jonathan Morton
e typical token-bucket shaper that fq_codel is used with. There’s also some difference in the Codel implementation which might or might not be relevant, specifically in the calculation of “count” after a relatively brief exit from dropping state. - Jonathan Morton __

Re: [Cake] flow isolation for ISPs

2017-04-06 Thread Jonathan Morton
could be implemented. One option would be to use HTB with FLOWER filters to sort out the subscribers into classes, and use Cake or fq_codel as a child qdisc per class. Remember that Cake can be used in “unlimited” mode to rely on an external shaping source

Re: [Cake] Questions on Cake/cobalts experiment ingress mode

2017-04-06 Thread Jonathan Morton
to run in 'ingress' mode. The latter. The fundamental limitation has not been removed (and is not in Cake itself); this is just a modification to how dropped packets are accounted for when the bottleneck is upstream of Cake. - Jonathan Morton __

Re: [Cake] Getting Cake to work better with Steam and similar applications

2017-04-20 Thread Jonathan Morton
at should give you correct operation, and you can fine-tune from there. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Getting Cake to work better with Steam and similar applications

2017-04-20 Thread Jonathan Morton
direction. Try setting it to 10Mbit and see if that brings it under better control. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Getting Cake to work better with Steam and similar applications

2017-04-22 Thread Jonathan Morton
too? It’s possible, if you can figure out which traffic is Steam in the first place, and write filters to match on it. This is complicated by the fact that Valve runs a sophisticated CDN to handle their rather impressive bandwidth load. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] low bandwidth default params best effort vs voice latency.

2017-03-04 Thread Jonathan Morton
clearly need to fix. To help remind me, please do open an issue on the Github project. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [LEDE-DEV] Cake SQM killing my DIR-860L - was: [17.01] Kernel: bump to 4.4.51

2017-03-02 Thread Jonathan Morton
rather have a good hash with maximal entropy. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [LEDE-DEV] Cake SQM killing my DIR-860L - was: [17.01] Kernel: bump to 4.4.51

2017-03-02 Thread Jonathan Morton
preserve. True, but you incur the cost of a division, which is very much non-trivial on ARM CPUs, which are increasingly common in CPE. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [LEDE-DEV] Cake SQM killing my DIR-860L - was: [17.01] Kernel: bump to 4.4.51

2017-03-02 Thread Jonathan Morton
? It’s a power of two, yes. The actual number of buckets is 1024, but Cake uses the full 32-bit hash as a “tag” for hash collision detection without having to store and compare the entire 5-tuple. - Jonathan Morton ___ Cake mailing list Cake@

Re: [Cake] flow isolation for ISPs

2017-04-06 Thread Jonathan Morton
y, even some of the existing options could reasonably be streamlined away. With that said, a related qdisc *with* such support is eminently feasible, and could easily be the focus of a project. I think it would be worth gathering requirements for such a thing and cons

Re: [Cake] Getting Cake to work better with Steam and similar applications

2017-04-25 Thread Jonathan Morton
pped acks will tend to increase burstiness of sending on unpaced senders. You should also try to ensure ECN is fully enabled on your LAN hosts, especially the ones running Steam. This will help to reduce retransmissions and loss-recovery cycles. - Jonathan Morton

Re: [Cake] flow isolation with ipip

2017-08-16 Thread Jonathan Morton
don't ever expect encrypted tunnels to behave this way! - Jonathan Morton On 18 Jun 2017 21:13, "Cong Xu" <davidx...@gmail.com> wrote: > Hi, > > I wonder if cake's flow isolation works with the ipip tunnel? I hope to > guarantee the networking fair-share among cont

Re: [Cake] overhead and mpu

2017-09-05 Thread Jonathan Morton
to deal with sanely. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] overhead and mpu

2017-09-06 Thread Jonathan Morton
Because 1514 is the normal maximum size of an Ethernet frame. This can easily differ from the size actually used on the wire and from the size used by the provisioning shaper. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https

Re: [Cake] best way at getting at tcp ack data?

2017-09-30 Thread Jonathan Morton
On 01/10/17 06:10, Dave Taht wrote: I was thinking about how I'd go about adding saner ack filtering [1] to cake I didn't see any obvious improvement in that reference over what Cake does already. What are you thinking of? -- - Jonathan Morton

Re: [Cake] best way at getting at tcp ack data?

2017-10-01 Thread Jonathan Morton
worth opening an issue to remind me to look into that. I still don't have a replacement for my MBP, which is complicating matters here. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] best way at getting at tcp ack data?

2017-10-03 Thread Jonathan Morton
There's a much better way to achieve what you want anyway - ECN. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] best way at getting at tcp ack data?

2017-10-03 Thread Jonathan Morton
No, because acks are cumulative. Dropping an ack doesn't normally trigger any retransmissions, and is actually difficult to detect reliably at the sender. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net

Re: [Cake] cake flenter results round 1

2017-11-27 Thread Jonathan Morton
to be a reasonable default setting, though the "dual" modes will perform more reliably if chosen correctly. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake flenter results round 1

2017-11-27 Thread Jonathan Morton
It's not at all obvious how we'd detect that. Packets are staying in the queue for less time than the codel target, which is exactly what you'd get if you weren't saturated at all. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net

Re: [Cake] cake flenter results round 1

2017-11-27 Thread Jonathan Morton
Looking at the Cake stats for that run, it doesn't seem to have been signalling congestion at all, when you'd expect it to with 13 bulk flows running through it. Something odd is going on there. - Jonathan Morton ___ Cake mailing list Cake

Re: [Cake] Recomended HW to run cake and fq_codel?

2017-11-27 Thread Jonathan Morton
cified, so that we get a meaningful measurement that's hard to game. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] allocate_src allocate_dst

2017-11-25 Thread Jonathan Morton
Not quite. The "dual" enums have more than one bit set, so you have to test them for equality. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] allocate_src allocate_dst

2017-11-25 Thread Jonathan Morton
have an up-to-date net-next tree on one of my machines to build against. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] new patchset for upstream net-next

2017-11-26 Thread Jonathan Morton
It won't link unless conntrack is in the kernel, and *that* is costly for some. What we could do is make NAT support optional in Kconfig and have that option depend on conntrack. Would need a little fettling of cake itself to make the NAT support properly optional at compile time. - Jonathan

Re: [Cake] [PATCH 1/3] pkt_sched.h: add support for sch_cake API

2017-11-21 Thread Jonathan Morton
The stats are a little bit unwieldy, true. Is there an example of the TLV style of operation that I could study? - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] lan keyword affects host fairness

2017-11-23 Thread Jonathan Morton
, leaving little or no back-pressure for the fairness logic to work against. For this reason, you might have better luck with the next higher RTT setting. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net

Re: [Cake] cake flenter results round 3

2017-11-30 Thread Jonathan Morton
I'd like to see variations using Cake's "internet", "oceanic" and "satellite" presets at this RTT. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake flenter results round 3

2017-11-30 Thread Jonathan Morton
If you use netem to simulate the physical link, you could test Cake's ingress mode downstream of it. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Cannot install tc-adv(for cake) on Fedora 27

2017-11-30 Thread Jonathan Morton
It would need stdint.h and limits.h. It's possible one of those has been left out of the code. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] signed-off-by requests

2017-11-23 Thread Jonathan Morton
Probably there should be one from me - but I need to have built and tried it myself first, to be sure. There's still some new code I haven't gone over in detail yet. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https

Re: [Cake] cake_heap* could use some comments

2017-12-01 Thread Jonathan Morton
hard dropping hasn't been necessary for a while. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake vs fqcodel with 1 client, 4 servers

2017-12-04 Thread Jonathan Morton
I might try to implement a dynamic target adjustment later today. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] ack filter rrul result at 1000/100

2017-11-16 Thread Jonathan Morton
On 16/11/17 15:55, Bret Towe wrote: I have a docsis setup atm that is 300/7 Obligatory: https://www.youtube.com/watch?v=XnFSb8xcmN4 -- - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] total download rate with many flows

2017-11-10 Thread Jonathan Morton
not possible to guarantee both low latency and high throughput when operating downstream of the bottleneck link. ECN gives you better results, though. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo

Re: [Cake] total download rate with many flows

2017-11-20 Thread Jonathan Morton
for it being otherwise was that it must be stranded. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] total download rate with many flows

2017-11-16 Thread Jonathan Morton
that it only exists on my MBP hard drive, which I still don't have a working MBP to put in again. Due to HFS+ compression, I can't actually read the file by attaching it to a Linux machine. -- - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net

Re: [Cake] total download rate with many flows

2017-11-15 Thread Jonathan Morton
signalling frequency somehow. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [Bloat] Update Cake page on bufferbloat.net?

2017-11-03 Thread Jonathan Morton
I think "mostly true but incomplete" is the best way to describe the current pages. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Fwd: [iproute2 1/2] tc: Add support for the CBS qdisc

2017-11-02 Thread Jonathan Morton
required are a direct reflection of what such hardware requires, and are not at all user friendly. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] Fwd: [iproute2 1/2] tc: Add support for the CBS qdisc

2017-11-02 Thread Jonathan Morton
The name is certainly intriguing, but just look at all those parameters! Cake's shaper doesn't need them. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] cake flenter results round 4

2017-12-02 Thread Jonathan Morton
Just to note, deficiencies in host fairness are most likely directly linked to less-than-full throughput. One host is able to use bandwidth left unused by the other. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https

Re: [Cake] cake vs fqcodel with 1 client, 4 servers

2017-12-06 Thread Jonathan Morton
, while retaining reasonable inter-flow latency as measured by using other applications and/or hosts. I'd like to see a more controlled test of this, to compare with the previous behaviour. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net

Re: [Cake] cake vs fqcodel with 1 client, 4 servers

2017-12-07 Thread Jonathan Morton
Ah, the push didn't actually complete. It's there now. - Jonathan Morton ___ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake

Re: [Cake] [Fwd: Re: RHODIUM - nuking blue (for testing)]

2017-12-07 Thread Jonathan Morton
Smells like the NAS and OneDrive are using nonstandard, and at least partially noncompliant TCP stacks. Did the ack stream carry ECE flags? But yes, that is exactly the sort of abuse that the BLUE portion of COBALT is meant to cope with. - Jonathan Morton

Re: [Cake] cake vs fqcodel with 1 client, 4 servers

2017-12-06 Thread Jonathan Morton
These ideas have all been considered at great length in the past, and resulted in the Codel algorithm in the first place. You might want to read some of the original literature on it to understand my reasoning. - Jonathan Morton ___ Cake mailing list

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