Re: [Bloat] tp-link request for SQM

Re: [Bloat] tp-link request for SQM

[Rich Brown]

> On Dec 3, 2021, at 7:00 AM, Dave Täht wrote:
> 
> tp-link, is, so far as I know, the last major home router vendor NOT
> shipping a SQM system. Perhaps this could be modded up with someones
> with accounts?
> 
> https://community.tp-link.com/us/home/forum/topic/511156

Wait... what? Other vendors are providing SQM now? Cool!

How should we change the text on https://www.bufferbloat.net/projects/bloat/wiki/What_can_I_do_about_Bufferbloat/ that says:

> • Install an off-the-shelf router with SQM: Several commercial router vendors have a clue. Here is a list of those we have found:
> 
> 	• IQrouter provides a good setup wizard for configuring SQM, and automatically tunes its settings. IQrouter v3 is good to about 350 mbps. (Version 2 was good for 200-250 mbps.)
> 	• Ubiquiti gear has fq_codel settings. People say its EdgeRouter will handle over 400 mbps.
> 	• The eero mesh routers list SQM as a feature. Their third generation devices support SQM at speeds up to a gigabit/second as of November 2021.
> 	• Many other mesh router vendors claim to solve bufferbloat. Check their spec’s or ask them about latency.
> 	• Untangle NG Firewall has fq_codel settings.
> 	• ipfire.org has fq_codel settings.
> 	• If you’re a Comcast/Xfinity customer, see if you can get the XB6 / CGM4140COM cable modem that has PIE enabled. 
> 		Read p13 of Improving Latency with Active Queue Management (AQM) During COVID-19. for details.

Thanks.

Re: [Bloat] tp-link request for SQM

[Wheelock, Ian]

[-- Attachment #1: Type: text/plain, Size: 4138 bytes --]

I think for the last bullet in the text below, maybe change or remove the comment completely concerning requesting a specific vendor version of the COMCAST XB6 device, as the particular linked document, quite clearly noted the following on Page 18 (just before next steps)

“All Comcast DOCSIS 3.1 RDK-B-based gateway models have now been updated with DOCSIS- PIE AQM59 and all are achieving dramatically improved working latency.”

From: Bloat <bloat-bounces@lists.bufferbloat.net> on behalf of Rich Brown <richb.hanover@gmail.com>
Date: Friday 3 December 2021 at 13:40
To: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] tp-link request for SQM

> On Dec 3, 2021, at 7:00 AM, Dave Täht wrote: > > tp-link, is, so far as I know, the last major home router vendor NOT > shipping a SQM system. Perhaps this could be modded up with someones > with ac
External (richb.hanover@gmail.com<mailto:richb.hanover@gmail.com>)
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> On Dec 3, 2021, at 7:00 AM, Dave Täht wrote:

>

> tp-link, is, so far as I know, the last major home router vendor NOT

> shipping a SQM system. Perhaps this could be modded up with someones

> with accounts?

>

> https://secure-web.cisco.com/11W91PAeuwo-7hdmnL6Jde6PdXAD3imeogsT-s7C65Dx8I2Pu52GH6fV_uVNH9jVI_Nh2Rx3mVkAu2Ng8slvdg_9-hGV5nkDASoWcccJOZssODkfz5dQCluVD0mgvqIPZhwxA0KzmwOQe5WWlmbcXHyIC1L1XzqEhHPCpCenRGklMC5oY_cw1XvkuR1ynlvPJJLAlkQT44CdRcGq4TVf13XcO-nfrXbivS6r3ukba6ymIVnqMpOrAE9jMu4gN3wXcialJqG2uxCn-YT6yId636ExtywLnOxLsdqZmZEvNhvNebWCNOTzPRsX3qVtwW1dGKAjMNGeFPAdkyntrBaD8fw/https%3A%2F%2Fcommunity.tp-link.com%2Fus%2Fhome%2Fforum%2Ftopic%2F511156



Wait... what? Other vendors are providing SQM now? Cool!



How should we change the text on https://secure-web.cisco.com/17ZM6mUWyTGtM6W6dXJch5mpXfxAoz6xcZPXEzMBhosTE82sk1FcjnoVn8sQDIbqXhz-kbp7jXMTr5CJqrqFcJUW6fv56C0hLL2mYTBem0WCbWIyKx2Vbl54iNQLMjhsUajbEJYoX_FwEEOME1uEYDPWpV3Iv5QPGBKzieFMJYUrBcbIN23geFerv9GF9iU31Dtbk01Frbwff68UKfTGlHtAGwU5w9H2zjnstlUSCbGwnDQrfov71zbXWDqN4H2XqPBFMGiOvHFa-4wC2e-gJEW4KIT2blbuoViMM8Sk-fzHiH7D3ywfNxQ0zXG9Iz4m5pvfSIa5B_fuA7A9dfS7EUw/https%3A%2F%2Fwww.bufferbloat.net%2Fprojects%2Fbloat%2Fwiki%2FWhat_can_I_do_about_Bufferbloat%2F that says:



> • Install an off-the-shelf router with SQM: Several commercial router vendors have a clue. Here is a list of those we have found:

>

>       • IQrouter provides a good setup wizard for configuring SQM, and automatically tunes its settings. IQrouter v3 is good to about 350 mbps. (Version 2 was good for 200-250 mbps.)

>       • Ubiquiti gear has fq_codel settings. People say its EdgeRouter will handle over 400 mbps.

>       • The eero mesh routers list SQM as a feature. Their third generation devices support SQM at speeds up to a gigabit/second as of November 2021.

>       • Many other mesh router vendors claim to solve bufferbloat. Check their spec’s or ask them about latency.

>       • Untangle NG Firewall has fq_codel settings.

>       • ipfire.org has fq_codel settings.

>       • If you’re a Comcast/Xfinity customer, see if you can get the XB6 / CGM4140COM cable modem that has PIE enabled.

>               Read p13 of Improving Latency with Active Queue Management (AQM) During COVID-19. for details.



Thanks.

_______________________________________________

Bloat mailing list

Bloat@lists.bufferbloat.net

https://secure-web.cisco.com/1HmA5N75d_XvnakCfiWuf63vdlwXsdLDTm7gwCww5QSntSsN0wavZHAzyITvZtB31x4yw5QI-UuJSpwnzBj5h3Ov-p9jwJaB_yPM-NbWUGVJrsiTF3mSGoq8jPYqs8V61hRoFdYfGDmoV9miQwLYONzPWSCa5J7UNi2cap1M8qSUQUFkOhtC58VPKM_CwQ-QR6DWHMcOglyofPuK7xjZl8jlp64nx4vlRP33_x3GO2My60WYAQd39aG3NixxHnfHeVKrIL9gwAE9STeTo4csI7y8jDO0FdavdV1h97H9EGw8cZKUpVKy_ID7t9LgF7ekpKwHFgRSE8MYhkBWxY7XmEQ/https%3A%2F%2Flists.bufferbloat.net%2Flistinfo%2Fbloat

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Re: [Bloat] tp-link request for SQM

[Dave Taht]

On Fri, Dec 3, 2021 at 5:40 AM Rich Brown <richb.hanover@gmail.com> wrote:
>
>
>
> > On Dec 3, 2021, at 7:00 AM, Dave Täht wrote:
> >
> > tp-link, is, so far as I know, the last major home router vendor NOT
> > shipping a SQM system. Perhaps this could be modded up with someones
> > with accounts?
> >
> > https://community.tp-link.com/us/home/forum/topic/511156
>
> Wait... what? Other vendors are providing SQM now? Cool!

That's a request for the feature. I have been digging into the
underlying QoS code on a few commercial products,
and documenting where fq-codel was on the wikipedia page:
https://en.wikipedia.org/wiki/FQ-CoDel - I need to add there's
another common thing "out there" - eero and google call sqm 'optimize
for conferencing and gaming".

I've found doc at least for a few more implementations - notably
riverbed and sophos.

cake, btw, has been part of riverbed's branch routers for a really
long time. a support rep told me he estimated about 40% usage.

and this got 170 upvotes yesterday:

https://www.reddit.com/r/HomeNetworking/comments/r7cfvg/comcast_delivers_90_working_latency_reductions_by/?sort=new

> How should we change the text on https://www.bufferbloat.net/projects/bloat/wiki/What_can_I_do_about_Bufferbloat/ that says:

One thing we need to do is adopt the right cc-by- license on the site.
:) Someone else did a wikipedia page for cake but it got
removed for copyright reasons.

> > • Install an off-the-shelf router with SQM: Several commercial router vendors have a clue. Here is a list of those we have found:
> >
> >       • IQrouter provides a good setup wizard for configuring SQM, and automatically tunes its settings. IQrouter v3 is good to about 350 mbps. (Version 2 was good for 200-250 mbps.)
> >       • Ubiquiti gear has fq_codel settings. People say its EdgeRouter will handle over 400 mbps.
> >       • The eero mesh routers list SQM as a feature. Their third generation devices support SQM at speeds up to a gigabit/second as of November 2021.
> >       • Many other mesh router vendors claim to solve bufferbloat. Check their spec’s or ask them about latency.
> >       • Untangle NG Firewall has fq_codel settings.
> >       • ipfire.org has fq_codel settings.
> >       • If you’re a Comcast/Xfinity customer, see if you can get the XB6 / CGM4140COM cable modem that has PIE enabled.
> >               Read p13 of Improving Latency with Active Queue Management (AQM) During COVID-19. for details.
>
> Thanks.
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat



-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC

Re: [Bloat] tp-link request for SQM

[Dave Taht]

On Fri, Dec 3, 2021 at 6:30 AM Wheelock, Ian <ian.wheelock@commscope.com> wrote:
>
> I think for the last bullet in the text below, maybe change or remove the comment completely concerning requesting a specific vendor version of the COMCAST XB6 device, as the particular linked document, quite clearly noted the following on Page 18 (just before next steps)
>
> “All Comcast DOCSIS 3.1 RDK-B-based gateway models have now been updated with DOCSIS- PIE AQM59 and all are achieving dramatically improved working latency.”

Thx. Bold, 96pt type might help. :) Some actual model numbers, more.

>
>
> From: Bloat <bloat-bounces@lists.bufferbloat.net> on behalf of Rich Brown <richb.hanover@gmail.com>
> Date: Friday 3 December 2021 at 13:40
> To: bloat <bloat@lists.bufferbloat.net>
> Subject: Re: [Bloat] tp-link request for SQM
>
>
>
>
>
>
>
>
>
> > On Dec 3, 2021, at 7:00 AM, Dave Täht wrote:
>
> >
>
> > tp-link, is, so far as I know, the last major home router vendor NOT
>
> > shipping a SQM system. Perhaps this could be modded up with someones
>
> > with accounts?
>
> >
>
> > https://secure-web.cisco.com/11W91PAeuwo-7hdmnL6Jde6PdXAD3imeogsT-s7C65Dx8I2Pu52GH6fV_uVNH9jVI_Nh2Rx3mVkAu2Ng8slvdg_9-hGV5nkDASoWcccJOZssODkfz5dQCluVD0mgvqIPZhwxA0KzmwOQe5WWlmbcXHyIC1L1XzqEhHPCpCenRGklMC5oY_cw1XvkuR1ynlvPJJLAlkQT44CdRcGq4TVf13XcO-nfrXbivS6r3ukba6ymIVnqMpOrAE9jMu4gN3wXcialJqG2uxCn-YT6yId636ExtywLnOxLsdqZmZEvNhvNebWCNOTzPRsX3qVtwW1dGKAjMNGeFPAdkyntrBaD8fw/https%3A%2F%2Fcommunity.tp-link.com%2Fus%2Fhome%2Fforum%2Ftopic%2F511156
>
>
>
> Wait... what? Other vendors are providing SQM now? Cool!
>
>
>
> How should we change the text on https://secure-web.cisco.com/17ZM6mUWyTGtM6W6dXJch5mpXfxAoz6xcZPXEzMBhosTE82sk1FcjnoVn8sQDIbqXhz-kbp7jXMTr5CJqrqFcJUW6fv56C0hLL2mYTBem0WCbWIyKx2Vbl54iNQLMjhsUajbEJYoX_FwEEOME1uEYDPWpV3Iv5QPGBKzieFMJYUrBcbIN23geFerv9GF9iU31Dtbk01Frbwff68UKfTGlHtAGwU5w9H2zjnstlUSCbGwnDQrfov71zbXWDqN4H2XqPBFMGiOvHFa-4wC2e-gJEW4KIT2blbuoViMM8Sk-fzHiH7D3ywfNxQ0zXG9Iz4m5pvfSIa5B_fuA7A9dfS7EUw/https%3A%2F%2Fwww.bufferbloat.net%2Fprojects%2Fbloat%2Fwiki%2FWhat_can_I_do_about_Bufferbloat%2F that says:
>
>
>
> > • Install an off-the-shelf router with SQM: Several commercial router vendors have a clue. Here is a list of those we have found:
>
> >
>
> >       • IQrouter provides a good setup wizard for configuring SQM, and automatically tunes its settings. IQrouter v3 is good to about 350 mbps. (Version 2 was good for 200-250 mbps.)
>
> >       • Ubiquiti gear has fq_codel settings. People say its EdgeRouter will handle over 400 mbps.
>
> >       • The eero mesh routers list SQM as a feature. Their third generation devices support SQM at speeds up to a gigabit/second as of November 2021.
>
> >       • Many other mesh router vendors claim to solve bufferbloat. Check their spec’s or ask them about latency.
>
> >       • Untangle NG Firewall has fq_codel settings.
>
> >       • ipfire.org has fq_codel settings.
>
> >       • If you’re a Comcast/Xfinity customer, see if you can get the XB6 / CGM4140COM cable modem that has PIE enabled.
>
> >               Read p13 of Improving Latency with Active Queue Management (AQM) During COVID-19. for details.
>
>
>
> Thanks.
>
> _______________________________________________
>
> Bloat mailing list
>
> Bloat@lists.bufferbloat.net
>
> https://secure-web.cisco.com/1HmA5N75d_XvnakCfiWuf63vdlwXsdLDTm7gwCww5QSntSsN0wavZHAzyITvZtB31x4yw5QI-UuJSpwnzBj5h3Ov-p9jwJaB_yPM-NbWUGVJrsiTF3mSGoq8jPYqs8V61hRoFdYfGDmoV9miQwLYONzPWSCa5J7UNi2cap1M8qSUQUFkOhtC58VPKM_CwQ-QR6DWHMcOglyofPuK7xjZl8jlp64nx4vlRP33_x3GO2My60WYAQd39aG3NixxHnfHeVKrIL9gwAE9STeTo4csI7y8jDO0FdavdV1h97H9EGw8cZKUpVKy_ID7t9LgF7ekpKwHFgRSE8MYhkBWxY7XmEQ/https%3A%2F%2Flists.bufferbloat.net%2Flistinfo%2Fbloat
>
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat



-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC

Re: [Bloat] tp-link request for SQM

[Dave Taht]

On Fri, Dec 3, 2021 at 4:44 AM Kenneth Porter <shiva@sewingwitch.com> wrote:
>
> --On Friday, December 03, 2021 12:12 PM +0000 "Wheelock, Ian"
> <ian.wheelock@commscope.com> wrote:
>
> > 280Mbps service with Comcast is likely the 300/10 package offering… In
> > that case the US is limited to 10Mbps
> >
> > I understand there might be some issue if 280Mbps was being processed –
> > but in the US direction, we are not talking >>100Mbps – its about
> > 10Mbps US, I would have thought running cake on 10Mbps US cake would not
> > have triggered a 50% loss in performance even on this platform. Now if
> > cake is applied to both inbound and outbound traffic then having to deal
> > with ~280Mbps might be tough. In the case of DOCSIS AQM, PIE runs in the
> > GW only on outbound traffic.
>
> That's indeed the package. I was seeing 270-280 down and 12 up.
>
> "Good" tests without cake:
> <https://www.waveform.com/tools/bufferbloat?test-id=22cc9c3e-d3bd-4893-8b68-aba088e199e1>
> <https://www.waveform.com/tools/bufferbloat?test-id=90bfc919-0ccc-47d6-88e6-dee10a4f1b16>

I'm confused, was cake on on the upload? The whole "upload under load
+0" thing I am finding a bit worrisome,
certainly at higher rates with fq on it's going to be close to 0, but
in actually finding one ONT with a mere 5ms
buffer (so far), I am fearing that a solution entering the field is
really short buffers.

Could you take a packet capture of a test without cake?

> It got slammed down to 49 here:
> <https://www.waveform.com/tools/bufferbloat?test-id=a670b084-0e90-434b-aedb-e82b7ea7f7ab>

Ouch. And your uplink went to heck, also. The other worrisome thing
has been powersave and interacting with the
request/grant processes badly.

>
> I disabled cake and it slowly recovered:
> <https://www.waveform.com/tools/bufferbloat?test-id=eb5e874a-b5a4-436a-bb9b-b3a90ae14930>
> <https://www.waveform.com/tools/bufferbloat?test-id=6afcc17b-8d6a-47ee-9a78-ad5b65b74205>
>
> (I wish the tests had a timestamp so I could be sure I'm ordering them
> correctly.)
>
>
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat



-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC

Re: [Bloat] tp-link request for SQM

[Dave Taht]

On Fri, Dec 3, 2021 at 4:00 AM Luca Muscariello <muscariello@ieee.org> wrote:
>
> Test using a tp-link AP EAP 245
>
> https://www.waveform.com/tools/bufferbloat?test-id=bbcc5ef5-e677-4f27-aa04-1849db81d0f5

Nice.

A kvetch is that I really wish they also tested up and down at the same time.

Another kvetch is I think the test needs to run longer at these speeds.

Another another kvetch is they factor in baseline latency to determine
if the link is suitable for gaming or not.

We had them participating on this list at some point....

>
>
> On Thu, Dec 2, 2021 at 7:48 PM Dave Taht <dave.taht@gmail.com> wrote:
>>
>> tp-link, is, so far as I know, the last major home router vendor NOT
>> shipping a SQM system. Perhaps this could be modded up with someones
>> with accounts?
>>
>> https://community.tp-link.com/us/home/forum/topic/511156
>>
>>
>> --
>> I tried to build a better future, a few times:
>> https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org
>>
>> Dave Täht CEO, TekLibre, LLC
>> _______________________________________________
>> Bloat mailing list
>> Bloat@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/bloat



-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC

Re: [Bloat] tp-link request for SQM

[Kenneth Porter]

--On Friday, December 03, 2021 12:12 PM +0000 "Wheelock, Ian" 
<ian.wheelock@commscope.com> wrote:

> 280Mbps service with Comcast is likely the 300/10 package offering… In
> that case the US is limited to 10Mbps
>
> I understand there might be some issue if 280Mbps was being processed –
> but in the US direction, we are not talking >>100Mbps – its about
> 10Mbps US, I would have thought running cake on 10Mbps US cake would not
> have triggered a 50% loss in performance even on this platform. Now if
> cake is applied to both inbound and outbound traffic then having to deal
> with ~280Mbps might be tough. In the case of DOCSIS AQM, PIE runs in the
> GW only on outbound traffic.

That's indeed the package. I was seeing 270-280 down and 12 up.

"Good" tests without cake:
<https://www.waveform.com/tools/bufferbloat?test-id=22cc9c3e-d3bd-4893-8b68-aba088e199e1>
<https://www.waveform.com/tools/bufferbloat?test-id=90bfc919-0ccc-47d6-88e6-dee10a4f1b16>

It got slammed down to 49 here:
<https://www.waveform.com/tools/bufferbloat?test-id=a670b084-0e90-434b-aedb-e82b7ea7f7ab>

I disabled cake and it slowly recovered:
<https://www.waveform.com/tools/bufferbloat?test-id=eb5e874a-b5a4-436a-bb9b-b3a90ae14930>
<https://www.waveform.com/tools/bufferbloat?test-id=6afcc17b-8d6a-47ee-9a78-ad5b65b74205>

(I wish the tests had a timestamp so I could be sure I'm ordering them 
correctly.)

Re: [Bloat] tp-link request for SQM

[Kenneth Porter]

--On Friday, December 03, 2021 11:40 AM +0100 Sebastian Moeller 
<moeller0@gmx.de> wrote:

> No idea whether an archer 20 will do (not even sure what model that is,
> here in Germany I see either an C20 or an AX20 but no plain unadorned
> 20). If you should try OpenWrt on that thing, the OpenWrt forum is a good
> place to ask for configuration advice for specific models (will obviously
> not help if you stick to the manufacturer's firmware).

Sorry, that was the AX 20. I'd misremembered it. (I find router model 
numbers quite confusing.)

<https://www.amazon.com/gp/product/B085288G3M/>

Re: [Bloat] tp-link request for SQM

[Wheelock, Ian]

[-- Attachment #1: Type: text/plain, Size: 4787 bytes --]

Hi
280Mbps service with Comcast is likely the 300/10 package offering… In that case the US is limited to 10Mbps

I understand there might be some issue if 280Mbps was being processed – but in the US direction, we are not talking >>100Mbps – its about 10Mbps US, I would have thought running cake on 10Mbps US cake would not have triggered a 50% loss in performance even on this platform. Now if cake is applied to both inbound and outbound traffic then having to deal with ~280Mbps might be tough. In the case of DOCSIS AQM, PIE runs in the GW only on outbound traffic.



From: Bloat <bloat-bounces@lists.bufferbloat.net> on behalf of Sebastian Moeller <moeller0@gmx.de>
Date: Friday 3 December 2021 at 10:40
To: Kenneth Porter <shiva@sewingwitch.com>
Cc: cerowrt-devel <cerowrt-devel@lists.bufferbloat.net>, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] tp-link request for SQM

> On Dec 3, 2021, at 11:10, Kenneth Porter wrote: > > --On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht wrote: > >> tp-link, is, so far as I know,
External (moeller0@gmx.de<mailto:moeller0@gmx.de>)
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> On Dec 3, 2021, at 11:10, Kenneth Porter <shiva@sewingwitch.com> wrote:

>

> --On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht <dave.taht@gmail.com> wrote:

>

>> tp-link, is, so far as I know, the last major home router vendor NOT

>> shipping a SQM system. Perhaps this could be modded up with someones

>> with accounts?

>>

>> https://secure-web.cisco.com/11xOUC1zY509JqNeDmjflwH4rSaowAKbPpsMSSKsLaElYT5bKwUqpCvIP8pSIJN0xDSludBbilZxiCWeGyX9QBVXQIYGg4aeJlOIvbdBnAe-AGULG-eanWnKwFWAYCjRhnT-GbDz2UCRsr4YTmHkHQVjfSafvUq4KtMTkOBAhmvbMckt7aS8HDyLXxNQDxuTyJebXHYNYvNKVXNoeU562qbXBhB-ud2slR8bxmp5SrW2zaA0BTM-dK0S4ryLxffAxnZ4JjFcLRpX1I4xL1vIy1r3HCDpAwFidpPnHP-jznaHho4VzKVmEn5T4fAgYwSA-_7WEx2qqWgizSp8HE-kOmQ/https%3A%2F%2Fcommunity.tp-link.com%2Fus%2Fhome%2Fforum%2Ftopic%2F511156

>

> I just signed up an account and will add my vote.

>

> I just bought an Archer 20 to replace my old 2016 Zyxel running OpenWrt. I'd found it by looking at various reviews of "best OpenWrt router for 2021". I just updated my Zyxel firmware from v18 to v20 firmware. I get about 280 Mbps from Xfinity. I turned on cake and it dropped by 50%! So I think the old router's CPU isn't up to it. I'll be swapping in the TP-Link soon so I can turn on cake without the big performance hit.



        Getting low latency traffic shaping to work in a robust and reliable way above say ~100Mbps is still a challenge even for relatively recent router SoCs. Modern multicore SoCs upped the ante in the things-to-look-out for area by adding CPU power-saving (especially frequency scaling) and load distribution over CPUs to the mix... Now even something like a raspberry pi 4B with an additional well-selected USB3 gigabit ethernet dongle (costing less than 100 EUR all in all) will allow cake up to 1/1 Gbps but still requires careful configuration to do so. No idea whether an archer 20 will do (not even sure what model that is, here in Germany I see either an C20 or an AX20 but no plain unadorned 20). If you should try OpenWrt on that thing, the OpenWrt forum is a good place to ask for configuration advice for specific models (will obviously not help if you stick to the manufacturer's firmware).



Regards

        Sebastian







>

>

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Re: [Bloat] tp-link request for SQM

[Luca Muscariello]

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Test using a tp-link AP EAP 245

https://www.waveform.com/tools/bufferbloat?test-id=bbcc5ef5-e677-4f27-aa04-1849db81d0f5



On Thu, Dec 2, 2021 at 7:48 PM Dave Taht <dave.taht@gmail.com> wrote:

> tp-link, is, so far as I know, the last major home router vendor NOT
> shipping a SQM system. Perhaps this could be modded up with someones
> with accounts?
>
> https://community.tp-link.com/us/home/forum/topic/511156
>
>
> --
> I tried to build a better future, a few times:
> https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org
>
> Dave Täht CEO, TekLibre, LLC
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
>

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Re: [Bloat] tp-link request for SQM

[Sebastian Moeller]

> On Dec 3, 2021, at 11:10, Kenneth Porter <shiva@sewingwitch.com> wrote:
> 
> --On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht <dave.taht@gmail.com> wrote:
> 
>> tp-link, is, so far as I know, the last major home router vendor NOT
>> shipping a SQM system. Perhaps this could be modded up with someones
>> with accounts?
>> 
>> https://community.tp-link.com/us/home/forum/topic/511156
> 
> I just signed up an account and will add my vote.
> 
> I just bought an Archer 20 to replace my old 2016 Zyxel running OpenWrt. I'd found it by looking at various reviews of "best OpenWrt router for 2021". I just updated my Zyxel firmware from v18 to v20 firmware. I get about 280 Mbps from Xfinity. I turned on cake and it dropped by 50%! So I think the old router's CPU isn't up to it. I'll be swapping in the TP-Link soon so I can turn on cake without the big performance hit.

	Getting low latency traffic shaping to work in a robust and reliable way above say ~100Mbps is still a challenge even for relatively recent router SoCs. Modern multicore SoCs upped the ante in the things-to-look-out for area by adding CPU power-saving (especially frequency scaling) and load distribution over CPUs to the mix... Now even something like a raspberry pi 4B with an additional well-selected USB3 gigabit ethernet dongle (costing less than 100 EUR all in all) will allow cake up to 1/1 Gbps but still requires careful configuration to do so. No idea whether an archer 20 will do (not even sure what model that is, here in Germany I see either an C20 or an AX20 but no plain unadorned 20). If you should try OpenWrt on that thing, the OpenWrt forum is a good place to ask for configuration advice for specific models (will obviously not help if you stick to the manufacturer's firmware).

Regards
	Sebastian



> 
> 
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat

Re: [Bloat] tp-link request for SQM

[Kenneth Porter]

--On Thursday, December 02, 2021 10:48 AM -0800 Dave Taht 
<dave.taht@gmail.com> wrote:

> tp-link, is, so far as I know, the last major home router vendor NOT
> shipping a SQM system. Perhaps this could be modded up with someones
> with accounts?
>
> https://community.tp-link.com/us/home/forum/topic/511156

I just signed up an account and will add my vote.

I just bought an Archer 20 to replace my old 2016 Zyxel running OpenWrt. 
I'd found it by looking at various reviews of "best OpenWrt router for 
2021". I just updated my Zyxel firmware from v18 to v20 firmware. I get 
about 280 Mbps from Xfinity. I turned on cake and it dropped by 50%! So I 
think the old router's CPU isn't up to it. I'll be swapping in the TP-Link 
soon so I can turn on cake without the big performance hit.

[Bloat] tp-link request for SQM

[Dave Taht]

tp-link, is, so far as I know, the last major home router vendor NOT
shipping a SQM system. Perhaps this could be modded up with someones
with accounts?

https://community.tp-link.com/us/home/forum/topic/511156


-- 
I tried to build a better future, a few times:
https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org

Dave Täht CEO, TekLibre, LLC