On Wed, 22 May 2024 06:16:17 -0700
Kenneth Porter via Bloat wrote:
> This technical paper on Starlink by the chief scientist at APNIC crossed my
> feed this week. [I thought I'd share it to the Starlink list here but my
> application to join that list seems to have gotten stuck so I'll share
On Wed, 7 Feb 2024 07:05:27 -0500
Dave Taht via Bloat wrote:
> I also tend to think that attempting it in various cloudy
> environments and virtualization schemes, and with certain drivers, the
> side effects are not as well understood as I would like. For example,
> AWS's nitro lacks BQL as
On Tue, 17 Oct 2023 06:26:17 -0700
Dave Taht via Bloat wrote:
> > 2. What would I recommend? Obviously, inserting something with cake into
> > the mix would help a lot. Even if they were willing to let me examine their
> > entire network (Comcast router, Apple Airport in our Airbnb unit, other
On Sat, 5 Aug 2023 13:35:40 -0400
Sean DuBois via Bloat wrote:
> I am working on improving Pion's Google Congestion Control algorithm
> https://github.com/pion/interceptor/tree/master/pkg/gcc. As I start to use
> it in more real world networks I find flaws.
>
> How are people testing software
On Mon, 10 Jul 2023 23:27:46 +0200
Sebastian Moeller wrote:
> For what it is worth, the tsv working group is considering whether to process
> mp-dccp on the standards track, but then the IETF seems not to care too
> deeply about open-source licence compliance. Or recent kernel implementations
On Wed, 28 Jun 2023 10:32:32 -0400 (EDT)
"David P. Reed" wrote:
> How to find a kernel maintainer to care about DCCP, seems to be the question
> for Linux.
> I am tempted... Not to get involved with IETF "barriers" (what a mess, given
> the folks in IETF who resisted in AQM, I wouldn't last a
On Tue, 27 Jun 2023 12:47:01 -0700 (PDT)
David Lang wrote:
> On Mon, 26 Jun 2023, David P. Reed via Bloat wrote:
>
> > Sorry for top posting, but ... Bigger question:
> > Why would DCCP be deprecated by Linux kernel?
> > Who makes that decision? Who argues against it?
>
> Linus or the
On Mon, 26 Jun 2023 23:41:59 -0400 (EDT)
"David P. Reed" wrote:
> Sorry for top posting, but ... Bigger question:
> Why would DCCP be deprecated by Linux kernel?
> Who makes that decision? Who argues against it?
No one uses it, and unused protocols are targeted by hackers.
And there are few
On Sat, 24 Jun 2023 14:41:52 -0400 (EDT)
"David P. Reed via Bloat" wrote:
> I also was looking back to DCCP as a useful way to get a UDP that handled
> congestion without engaging the higher layers, and preserving the other
> flexibility of UDP.
DCCP never got widely used, and Linux is on the
On Wed, 31 May 2023 16:28:14 -0600
Dave Taht via Bloat wrote:
> An otherwise good paper on RED vs drop tail here:
>
> https://arxiv.org/pdf/2303.10220.pdf
>
> Is it because we completely lack any analytical methods for taking a
> hard look at drop or marking from the head, as codel does, or
On Sun, 28 May 2023 06:46:48 -0600
Dave Taht via Bloat wrote:
> Does a linux implementation of this exist? It looks promising...
>
> https://datatracker.ietf.org/doc/html/rfc9406
>
Not that I know of. Contact the authors and they may be able to help.
Microsoft is more open source friendly
This showed up on Human Infrastructure mailing list and others might be
interested.
https://adriano.fyi/post/2023/2023-04-16-att-traffic-shaping-makes-websites-unusable/
___
Bloat mailing list
Bloat@lists.bufferbloat.net
quantum 1514 target
> 5.0ms interval 100.0ms memory_limit 32Mb ecn
>
> On Sat, Feb 25, 2023 at 11:07 PM Dave Taht via Bloat <
> bloat@lists.bufferbloat.net> wrote:
>
>> On Sat, Feb 25, 2023 at 12:54 PM Stephen Hemminger
>> wrote:
>> >
>> > On Sat,
On Sat, 25 Feb 2023 15:37:02 -0500
Michael Richardson via Bloat wrote:
> Dave Taht via Bloat wrote:
> > I so want to believe... I so want to believe... can anyone confirm?
>
> >
>
On Wed, 8 Feb 2023 16:43:59 -0800
Dave Taht via Bloat wrote:
> On Wed, Feb 8, 2023 at 2:41 PM Luis A. Cornejo
> wrote:
> >
> > As a former T-mobile HSI customer, I can attest the horrible queue
> > management. The deprioritization was so bad that it became basically
> > unusable, even a ping
On Wed, 4 Jan 2023 15:11:34 -0500
David Collier-Brown via Bloat wrote:
> On 1/4/23 15:02, rjmcmahon via Bloat wrote:
> > Curious to why people keep calling capacity tests speed tests? A semi
> > at 55 mph isn't faster than a porsche at 141 mph because its load
> > volume is larger.
>
>
On Thu, 10 Nov 2022 08:58:39 -0800
Dave Taht via Bloat wrote:
> I keep hoping that someone from starlink will start showing up at
> traditional venues such as this.
How is Starlink going, now that Elon has shown how he can screw up a company.
___
On Wed, 19 Oct 2022 14:33:28 -0700 (PDT)
David Lang via Bloat wrote:
> On Wed, 19 Oct 2022, Stuart Cheshire via Bloat wrote:
>
> > On Mon, Oct 17, 2022 at 5:02 PM Stuart Cheshire wrote:
> >
> >> Accuracy be damned. The analogy to common experience resonates more.
> >
> > I feel it is not
On Fri, 5 Aug 2022 00:45:12 +0300
Jonathan Morton via Bloat wrote:
> > On 4 Aug, 2022, at 3:21 pm, Bjørn Ivar Teigen via Bloat
> > wrote:
> >
> > Main take-away (as I understand it) is something like "In real-world
> > networks, jitter adds noise to the end-to-end delay such that any
Apparently audiophiles are willing to spend extra money on a switch
with better power supply and carbon frame to reduce noise in digital signals.
https://www.tomshardware.com/news/ethernet-switch-for-audiophiles
___
Bloat mailing list
On Fri, 2 Jul 2021 09:42:24 -0700
Dave Taht wrote:
> "Debunking Bechtolsheim credibly would get a lot of attention to the
> bufferbloat cause, I suspect." - dpreed
>
> "Why Big Data Needs Big Buffer Switches" -
> http://www.arista.com/assets/data/pdf/Whitepapers/BigDataBigBuffers-WP.pdf
>
On Tue, 22 Jun 2021 22:51:18 +
"Livingood, Jason" wrote:
> > It doesn't help that all the local ISP's claim 10Mbit upload even with 1G
> > download. Is this a head end provisioning problem or related to Docsis 3.0
> > (or later) modems?
>
> I'll cover this in an upcoming technical paper
On Tue, 22 Jun 2021 23:04:18 +
"Livingood, Jason" wrote:
> > For DOCSIS the issue seems to be an unfortunate frequency split between up
> > and downstream and use of lower efficiency coding schemes.
>
> Performance really takes a big step forward once a person has a D3.1 modem in
>
Is there any consumer hardware that can actually keep up and do AQM at 1Gbit.
It seems everyone seems obsessed with gamer Wifi 6. But can only do 300Mbit
single
stream with any kind of QoS.
It doesn't help that all the local ISP's claim 10Mbit upload even with 1G
download.
Is this a head end
On Mon, 17 May 2021 16:32:21 -0700
Dave Taht wrote:
> On Mon, May 17, 2021 at 4:00 PM Stephen Hemminger
> wrote:
> >
> > On Mon, 17 May 2021 14:48:46 -0700
> > Dave Taht wrote:
> >
> > > On Mon, May 17, 2021 at 1:23 PM Willem de Bruijn
> > >
On Mon, 17 May 2021 14:48:46 -0700
Dave Taht wrote:
> On Mon, May 17, 2021 at 1:23 PM Willem de Bruijn
> wrote:
> >
> > On Mon, May 17, 2021 at 2:44 PM Dave Taht wrote:
> > >
> > > Not really related to this patch, but is there some reason why virtio
> > > has no support for BQL?
> >
> >
On Tue, 6 Apr 2021 23:59:53 +0200
Erik Auerswald wrote:
> Hi,
>
> On Tue, Apr 06, 2021 at 10:02:21PM +0200, Bless, Roland (TM) wrote:
> > On 06.04.21 at 20:50 Erik Auerswald wrote:
> > >On Tue, Apr 06, 2021 at 08:31:01AM +0200, Sebastian Moeller wrote:
> > >>>On Apr 6, 2021, at 02:47, Erik
On Mon, 5 Apr 2021 08:46:15 -0400
Rich Brown wrote:
> Dave Täht has put me up to revising the current Bufferbloat article on
> Wikipedia (https://en.wikipedia.org/wiki/Bufferbloat)
>
> Before I get into it, I want to ask real experts for some guidance... Here
> goes:
>
> 1) What is *our*
Start with Ron Wyden
On Thu, Mar 4, 2021, 7:54 PM Dave Taht wrote:
> I am planning to take my time on this. I would like for example, to
> at least communicate well with a republican senator and a democratic one.
>
> Admittedly, if we can upgrade everybody to 100Mbit, everybody can have
> all 4
On Tue, 23 Feb 2021 17:14:31 -0800
Dave Taht wrote:
> wow, that is (predictably) miserable, even with cake. The only
> solution that is going to
> work is to somehow actively monitor your link quality and adjust cake
> to suit. Or we can start trying to use kathie's passive ping tools.
>
> On
On Tue, 5 Jan 2021 12:08:56 -0500
Rich Brown wrote:
> > On Jan 5, 2021, at 12:00 PM, Stephen Hemminger wrote:
> >
> > I having lots of issues with openwrt stability.
>
> I know the OpenWrt dev's are going hammer and tongs to produce a 2x.0x
> release
On Tue, 5 Jan 2021 11:49:58 -0500
Daniel Sterling wrote:
> On Tue, Jan 5, 2021 at 11:10 AM Michael Richardson wrote:
> >
> > Stephen Hemminger wrote:
> > > Any idea how to debug this? Is there a way to get serial console?
> >
> > It depends upon
I having lots of issues with openwrt stability.
Today's issue seems to be some device on one leg of the home LAN causing
OpenWrt router
to crash. That leg has Xbox and other audio gear.
Any idea how to debug this? Is there a way to get serial console?
This looks interesting:
https://blog.apnic.net/2020/09/18/nest-a-simpleefficient-tool-to-study-congestion-control/
Good - using namespaces for testing is a good idea.
- testbed is GPLv2
Bad - using iperf as your main test tool encourages buffer bloat
- Does 5G really need yet another
On Sun, 05 Jul 2020 13:43:27 -0400
Michael Richardson wrote:
> Sebastian Moeller wrote:
> > of the sending rate, no? BBRv2 as I understand it will happily run
> > roughshod over any true rfc3168 AQM on the path, I do not have the
> > numbers, but I am not fully convinced that
On Tue, 28 Apr 2020 09:57:26 -0700
Dave Taht wrote:
> H/T sebastian:
>
> https://investors.maxlinear.com/press-releases/detail/395/maxlinear-to-acquire-intels-home-gateway-platform
>
> Gawd knows what this means.
>
It means somebody is getting a bonus, and somebody is out of a job
On Wed, 4 Sep 2019 06:24:07 +0300
Jonathan Morton wrote:
> > On 4 Sep, 2019, at 6:17 am, Dave Taht wrote:
> >
> > …and people jump off of cable as soon as
> > they can get fiber... but that's due to the RTT more than the bandwidth.
>
> And also due to the downright predatory pricing/billing
On Tue, 3 Sep 2019 10:29:51 -0700
Dave Taht wrote:
> On Tue, Sep 3, 2019 at 8:57 AM Rich Brown wrote:
> >
> > > On Sep 3, 2019, at 11:22 AM, bloat-requ...@lists.bufferbloat.net wrote:
> > >
> > > The coffee shop tests were fun, but I(we) needed more rigor when doing
> > > them. What I'd
On Mon, 26 Aug 2019 09:35:14 +0200
Toke Høiland-Jørgensen wrote:
> Turns out that with the "earliest departure time" support in sched_fq,
> it is now possible to write a shaper in eBPF, thus avoiding the global
> qdisc lock in sched_htb. This is pretty cool, if you ask me! :)
>
> -Toke
>
On Tue, 30 Jul 2019 15:34:21 -0700
Kenneth Porter wrote:
> I'm running CentOS 7 on a Dell R230 as a small office router. It's on a
> slow ADSL link, 1.5 Mbps down and 150 kbps up. The kernel supports
> fq_codel, as does the tg3 driver used by the interfaces.
>
> In the past I've run the
Good summary of bufferbloat from network operator point of view.
https://blog.ipspace.net/2019/06/do-packet-drops-matter-for-tcp.html?ck_subscriber_id=182966812
___
Bloat mailing list
Bloat@lists.bufferbloat.net
On Wed, 20 Mar 2019 19:04:17 +
"Holland, Jake" wrote:
> Hi Bob & Greg,
>
> I agree there has been a reasonably open conversation about the L4S
> work, and thanks for all your efforts to make it so.
>
> However, I think there's 2 senses in which "private" might be fair that
> I didn't see
On Mon, 11 Mar 2019 16:01:36 -0700
Dev wrote:
> I built a transparent bridge on a Debian platform earlier running fq_codel
> between eth2 and eth3 as br0 which seemed to improve throughput.
>
> Now, I’m wondering if there’s a way to copy some of those packets to another
> onboard NIC eth4
On Fri, 4 Jan 2019 12:33:28 -0800
Dev wrote:
> Okay, thanks to some help from the list, I’ve configured a transparent bridge
> running fq_codel which works for multiple subnet traffic. Here’s my setup:
>
> Machine A ——— 192.168.10.200 — — bridge fq_codel machine B —— laptop C
> 192.168.10.150
On Wed, 5 Dec 2018 14:56:35 +0100
"Bless, Roland (TM)" wrote:
> Hi,
>
> Am 04.12.18 um 19:03 schrieb Dave Taht:
> > I guess someone could modify quic to do this also.
> >
> > https://sci-hub.tw/https://dl.acm.org/citation.cfm?doid=3281411.3281430
>
> It seems that it isn't "extremely
On Fri, 30 Nov 2018 06:51:34 +0100 (CET)
Mikael Abrahamsson wrote:
> On Thu, 29 Nov 2018, Stephen Hemminger wrote:
>
> > The problem is that any protocol is mostly blind to the underlying
> > network (and that can change). To use dave's analogy it is like being
> >
On Wed, 28 Nov 2018 23:35:53 -0800
Dave Taht wrote:
> > As someone who works with moving packets, it's perplexing to me to
> > interact with transport peeps who seem enormously focused on
> > "goodput". My personal opinion is that most people would be better off
> > with 80% of their available
On Tue, 27 Nov 2018 18:14:01 +
"Holland, Jake" wrote:
> On 2018-11-23, 08:33, "Dave Taht" wrote:
> Back in the day, I was a huge fan of async logic, which I first
> encountered via caltech's cpu and later the amulet.
>
>
On Mon, 26 Nov 2018 18:17:32 -0800
Dave Taht wrote:
> I had been investigating various hashing schemes for speeding up the
> babeld routing protocol daemon, and dealing with annoying bursty cpu
> behavior (resizing memory, bursts of packets, thundering herds of
> retractions), and, although it's
On Tue, 23 Oct 2018 09:38:10 +0200
Jonas Mårtensson wrote:
> >
> > Linux Foundation announced Danos, but no code is yet available.
> >
>
> Yeah I know, but you seemed to know it is written in Go, which I can't find
> any information about, so I thought maybe you had more information.
>
>
On Tue, 16 Oct 2018 17:46:44 -0700
Dave Taht wrote:
> Jan Ceuleers writes:
>
> > On 16/10/2018 17:14, Dave Taht wrote:
> >> And what was so wrong with the "everything as a file" model??
> >
> > On a single box - not a lot.
> >
> > On a 5G network, which might consist of 10^3 - 10^5 boxes
On Tue, 16 Oct 2018 08:14:36 -0700
Dave Taht wrote:
> On Tue, Oct 16, 2018 at 8:06 AM Stephen Hemminger
> wrote:
> >
> > On Tue, 16 Oct 2018 11:59:18 +0200
> > Stefan Alfredsson wrote:
> >
> > > On 2018-10-16 11:31, Mikael Abrahamsson wrote:
> &g
On Tue, 16 Oct 2018 11:59:18 +0200
Stefan Alfredsson wrote:
> On 2018-10-16 11:31, Mikael Abrahamsson wrote:
>
> > On Mon, 15 Oct 2018, Dave Taht wrote:
> >
> >> Vyos (the open source fork of vyatta) was one of the first to add
> >> fq_codel support... I wonder
> >>
> >>
On Thu, 21 Jun 2018 10:31:18 -0500
Caleb Cushing wrote:
> actually... all of my devices, including my desktop connect through wifi
> these days... and only one of them isn't running some variant of linux.
>
Sigh. My experience with wifi is that it is not stable enough for that.
Both AP's I
On Wed, 29 Nov 2017 10:41:41 -0800
Dave Taht wrote:
> On Wed, Nov 29, 2017 at 10:21 AM, Juliusz Chroboczek wrote:
> >> The better solution would of course be to have the TCP peeps change the
> >> way TCP works so that it sends fewer ACKs.
> >
> > Which tends
On Sun, Oct 8, 2017 at 6:54 PM, Dave Taht wrote:
> I have been hacking away at netem for a while now in the hope that
> eventually - with a great deal more hacking - it could be used to more
> accurately emulate shared media like wifi and lte.
>
> (Some people try to
Rich, you gave a good "glass is half full" story but my experience is currently
much worse. Here is the "glass is mostly empty" story.
> There have been so many improvements in so many ways...
>
> - Cake is the acknowledged winner in SQM
But is still not upstream and requires tuning. In real
Interesting talk at Netdev 2.1
Verizon testing TCP BBR over LTE.
https://www.netdevconf.org/2.1/session.html?chung
Compared TCP Cubic vs BBR while driving on highway from Boston
to New Jersey.
Will post paper and youtube link when available
___
On Tue, 31 Jan 2017 17:35:40 +0100
Toke Høiland-Jørgensen <t...@toke.dk> wrote:
> Stephen Hemminger <step...@networkplumber.org> writes:
>
> > On Tue, 20 Dec 2016 11:02:44 -0800
> > Dave Taht <dave.t...@gmail.com> wrote:
> >
> >> Toke has been
On Tue, 20 Dec 2016 11:02:44 -0800
Dave Taht wrote:
> Toke has been busy adding new features to the flent network test tool.
> I consider it *almost* stable enough for a new release. Some of the
> development has been focused on making the flent-gui much faster and
> more
My experience has been that the media and developer attention span is short
lived, and maybe that is part of the problem. Gaming is a niche market, and
therefore is easily ignored; plus the classic gaming market is dying and I am
not sure anyone is really investing in it.
The current hot topic
> BQL for vmxnet3 (if possible). Virtual router are becoming common.
BQL could be implemented in vmxnet3, but probably not in virtio.
virtio defers freeing packets to try and have better cache behavior
___
Bloat mailing list
Bloat@lists.bufferbloat.net
On Tue, 15 Nov 2016 12:00:29 -0500
Rich Brown wrote:
> Google Alerts sent a link to this paper: "Understanding on-device bufferbloat
> for cellular upload" available at: http://dl.acm.org/citation.cfm?id=2987490
> (ACM Paywall...)
>
> In my two-minute skim of the
Why not submit it upstream where it can get more review and will get picked
up by more users?
On Fri, Jul 29, 2016 at 2:08 AM, De Schepper, Koen (Nokia - BE) <
koen.de_schep...@nokia-bell-labs.com> wrote:
> Hi all,
>
> For those who missed the L4S BoF, the PI2 AQM with DualQ option is
>
DPDK gets impressive performance on large systems (like 14M packets/sec per
core), but not convinced on smaller systems.
Performance depends on having good CPU cache. I get poor performance on
Atom etc.
Also driver support is limited (mostly 10G and above)
On Wed, Apr 27, 2016 at 12:28 PM, Aaron
On Tue, 5 Jan 2016 11:37:02 -0800
Dave Täht wrote:
>
>
> On 1/5/16 11:29 AM, Steinar H. Gunderson wrote:
> > On Tue, Jan 05, 2016 at 10:57:13AM -0800, Dave Täht wrote:
> >> Context switch time is probably one of the biggest hidden nightmares in
> >> modern OOO cpu architectures
On Wed, 6 Jan 2016 01:22:13 +0100
"Steinar H. Gunderson" <sgunder...@bigfoot.com> wrote:
> On Tue, Jan 05, 2016 at 04:06:03PM -0800, Stephen Hemminger wrote:
> > The expensive part is often having to save and restore all the state in
> > registers and other bits
On Wed, 6 Jan 2016 01:55:37 +0100
"Steinar H. Gunderson" <sgunder...@bigfoot.com> wrote:
> On Tue, Jan 05, 2016 at 04:53:14PM -0800, Stephen Hemminger wrote:
> >> Also, I've never ever seen the actual context switch turn up high in a perf
> >> profile. Is t
On Mon, 4 Jan 2016 15:38:05 -0800
Dave Täht wrote:
> all the bufferbloat.net servers are in the process of migrating to a
> new co-location facility. the lists - if not the archives - should be
> alive again, at least.
>
> There is a stupid bug somewhere stopping the archived
You just reinvented delay based congestion control.
This has been tried int many forms dating back to TCP Vegas.
https://en.wikipedia.org/wiki/TCP_Vegas
Unfortunately, it often failed in practice (which no one ever
wanted to publish), Some of the reasons are:
* Delay based CC is sensitive to
On Fri, 15 May 2015 12:16:56 -0400
Jim Gettys j...@freedesktop.org wrote:
Even before I knew about the wonderful DSLreports bufferbloat test, I had
started working on a document to help people like that (e.g. Ookla)
understand how to do bufferbloat testing. The document also grew a bit
On Wed, 08 Apr 2015 09:56:48 -0700
Alex Elsayed eternal...@gmail.com wrote:
Dave Taht wrote:
On Wed, Apr 8, 2015 at 5:05 AM, ga...@djlatino.com wrote:
snip
Reason is Verizon has a combo router/modem.
They CAN be configured in a bridge mode if you desire, but you can
usually just
...@djlatino.com wrote:
I'm going to order them from Amazon. A pair of moca is $110.00. Thanks
Sent from my iPhone
On Apr 8, 2015, at 6:18 PM, Stephen Hemminger
step...@networkplumber.org wrote:
On Wed, 08 Apr 2015 09:56:48 -0700
Alex Elsayed eternal...@gmail.com wrote:
Dave Taht
On Sat, 30 Aug 2014 09:05:58 +0300
Jonathan Morton chromati...@gmail.com wrote:
On 29 Aug, 2014, at 5:37 pm, Jerry Jongerius wrote:
did you check to see if packets were re-sent even if they weren't lost? on
of
the side effects of excessive buffering is that it's possible for a packet
I got one of these Samsung LTE hotspot.
Not surprisingly it has huge bloat and a stupid http proxy
that netalyzer claims rewrites images.
Bandwidth: Up 1.6 Mbit/sec Down 4.3Mbit/sec
Latency: 140ms 0% loss
Buffering: Uplink 5100ms Down 1800ms
How can the uplink side be so bad! 5 seconds???
On Thu, 31 Oct 2013 00:34:12 +0100 (CET)
Mikael Abrahamsson swm...@swm.pp.se wrote:
On Wed, 30 Oct 2013, Stephen Hemminger wrote:
Not surprisingly it has huge bloat and a stupid http proxy that
netalyzer claims rewrites images.
This could be done in the provider network, did you try
On Tue, 9 Jul 2013 19:38:40 +0200
Jaume Barcelo jaume.barc...@upf.edu wrote:
To be more specific, TCP would be at any time increasing or decreasing
the congestion window. In other words, it will be moving in one
direction (right or left) along the x axis of Fig. 1 of Getty's paper.
Each RTT,
On Fri, 28 Jun 2013 01:33:22 -0700
Hal Murray hmur...@megapathdsl.net wrote:
Has anybody tried this stuff in a bloat sensitive environment?
Experimenting with QUIC
http://blog.chromium.org/2013/06/experimenting-with-quic.html
QUIC (Quick UDP Internet Connections) is an early-stage
On Wed, 29 May 2013 08:52:04 -0700
Eric Dumazet eric.duma...@gmail.com wrote:
On Wed, 2013-05-29 at 15:13 +0200, Jesper Dangaard Brouer wrote:
I recently discovered that the (traffic control) tc linklayer
calculations for ATM/ADSL have been broken by:
commit 56b765b79 (htb: improved
On Tue, 14 May 2013 15:48:38 +0200
Jesper Dangaard Brouer jbro...@redhat.com wrote:
(I'm testing fq_codel and codel)
I need a test tool that can start many TCP streams (1024).
During/after the testrun I want to know if the connections got a fair
share of the bandwidth.
Can anyone
The tone of the paper is a bit of if academics don't analyze it to death
it must not exist. The facts are interesting, but the interpretation ignores
the human element. If human's perceive delay Daddy the Internet is slow, then
they will change their behavior to avoid the problem: it hurts when I
On Wed, 10 Oct 2012 19:27:11 -0400
Michael Richardson m...@sandelman.ca wrote:
But: It became obvious fast that long RTT tests were needed,
which I've been trying to establish the infrastructure to do
toke I assume that by infrastructure you mean (netperf) servers
toke
On Tue, 13 Mar 2012 13:28:52 +0100
Hagen Paul Pfeifer ha...@jauu.net wrote:
On Mon, 12 Mar 2012 17:09:44 -0700, Dave Taht dave.t...@gmail.com wrote:
is the by the same guy that did QFQ, and the results are quite
impressive. He (today) announced support for this interface for Linux.
On Thu, 08 Dec 2011 17:06:03 +0100
Eric Dumazet eric.duma...@gmail.com wrote:
Changes against our RED implementation are :
max_p is no longer a negative power of two (1/(2^Plog)), but a Q0.32
fixed point number, to allow full range described in Adatative paper.
To deliver a random number,
On Wed, 17 Aug 2011 18:26:00 -0700
Patrick J. LoPresti lopre...@gmail.com wrote:
Hello, BufferBloat crusaders.
Permit me briefly to describe my application. I have a rack full of
Linux systems, all with 10GbE NICs tied together by a 10GbE switch.
There are no routers or broader Internet
On Wed, 8 Jun 2011 10:52:07 -0600
Dave Taht dave.t...@gmail.com wrote:
On Wed, Jun 8, 2011 at 10:41 AM, Eric Dumazet eric.duma...@gmail.com wrote:
Le mercredi 08 juin 2011 à 09:51 -0600, Dave Taht a écrit :
And they are *all* wrong to varying extents, which is why I like the
'mondo
On Sat, 7 May 2011 19:39:22 +0300
Jonathan Morton chromati...@gmail.com wrote:
On 7 May, 2011, at 1:10 am, Stephen Hemminger wrote:
Rate = (MSS/RTT)*(1 / sqrt{p})
where:
Rate: is the TCP transfer rate or throughputd
MSS: is the maximum segment size (fixed for each Internet path
This showed up on the end-to-end mailing list and might be of interest
to this group. It is interesting how many hosts are still using BIC
(probably RHEL/Centos 5). BIC is known to be broken and unfair.
From: Lisong Xu lisong...@gmail.com
Date: Tue, Mar 15, 2011 at 3:36 PM
Subject: [e2e]
88 matches
Mail list logo