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From: Dave Taht <dave.taht@gmail.com>
To: jb <justin@dslr.net>
Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] 22 seconds til bloat on gfiber?
Date: Sat, 22 Oct 2016 18:47:14 -0700	[thread overview]
Message-ID: <CAA93jw6qQhkTU_qHTu0yaN447sjaNEpu_p2TWe3Zjg2DhgAhkg@mail.gmail.com> (raw)
In-Reply-To: <CAA93jw4VEPOBLCC_moTzS1BdeSZhcQCk2jLMtZER78dO75tyPQ@mail.gmail.com>

randomly clicking around, 18 seconds to "start of bloat" on xfinity
http://www.dslreports.com/speedtest/5414347

On Sat, Oct 22, 2016 at 6:45 PM, Dave Taht <dave.taht@gmail.com> wrote:
> On Sat, Oct 22, 2016 at 6:33 PM, jb <justin@dslr.net> wrote:
>> This example takes about 6 seconds to get all the uploads running as
>> they are staged, and then each upload takes a while to get to full speed
>> because that is a function of  the senders TCP stack. So the smoothed
>> total transfer rate lags as well, and the whole thing doesn't start to bloat
>> out until we get to max speed.
>>
>> There is an upload duration preference that can increase the total time
>> upload or download takes but people already have no patience and
>> close the tab when they start seeing decent upload numbers,
>> so increasing it just makes the quit rate higher still. For the quitters
>> we get no results at all, other than they quit before the end of the test.
>
> I agree that waiting that long is hard on users, and that since it
> takes so long to get to that point, it will take a lot of work for a
> gfiber user to stress out the connection, on a benchmark... but in the
> real world, with a few users on the link, not so much.
>
> 400-1000ms latency when loaded counts as an "F" grade, in my opinion.
> Perhaps doing the grade calculation only when the link is observed
> near max bandwidth achieved (say, half)?
>
> There are of course, other possible reasons for such bloat, like the
> browser falling over, I wish I had a gfiber network and routing device
> to test against.
>
> Is there any way to browse
> http://www.dslreports.com/speedtest/results/isp/r3910-google-fiber for
> like the last 20 results to see if this is a common behavior on gfiber
> for longer tests?
>
>> thanks
>>
>> On Sun, Oct 23, 2016 at 10:52 AM, Jonathan Morton <chromatix99@gmail.com>
>> wrote:
>>>
>>>
>>> > On 23 Oct, 2016, at 00:56, Dave Taht <dave.taht@gmail.com> wrote:
>>> >
>>> > http://www.dslreports.com/speedtest/5408767
>>>
>>> Looks like that’s how long it takes for the throughput to ramp up to link
>>> capacity.  That in turn is a function of the sender’s TCP.
>>>
>>>  - Jonathan Morton
>>>
>>> _______________________________________________
>>> Bloat mailing list
>>> Bloat@lists.bufferbloat.net
>>> https://lists.bufferbloat.net/listinfo/bloat
>>
>>
>>
>> _______________________________________________
>> Bloat mailing list
>> Bloat@lists.bufferbloat.net
>> https://lists.bufferbloat.net/listinfo/bloat
>>
>
>
>
> --
> Dave Täht
> Let's go make home routers and wifi faster! With better software!
> http://blog.cerowrt.org



-- 
Dave Täht
Let's go make home routers and wifi faster! With better software!
http://blog.cerowrt.org

  reply	other threads:[~2016-10-23  1:47 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-22 21:56 Dave Taht
2016-10-22 23:52 ` Jonathan Morton
2016-10-23  1:33   ` jb
2016-10-23  1:45     ` Dave Taht
2016-10-23  1:47       ` Dave Taht [this message]
2016-10-23  2:27         ` jb
     [not found]           ` <CAJq5cE3DsV9v6ATVeq+vF_kVFjKy+8Qjwe-P01ZZbyKZB9HC6w@mail.gmail.com>
2016-10-23  8:29             ` Jonathan Morton
2016-10-23  9:23               ` jb
2016-10-23 16:14                 ` Klatsky, Carl
2016-10-24  0:46                   ` jb
2016-10-24 13:13                     ` Klatsky, Carl
2016-10-24 16:11                       ` Noah Causin
2016-10-24 20:27                         ` Klatsky, Carl
2016-10-23  2:30         ` Benjamin Cronce
2016-10-25  7:10   ` Jonas Mårtensson
2016-10-23  5:50 ` Mikael Abrahamsson
2016-10-24 16:57   ` Jonas Mårtensson
2016-10-24 22:10     ` Benjamin Cronce
2016-10-25  0:09       ` jb
2016-10-25 12:01         ` Benjamin Cronce
2016-10-25 13:11         ` Klatsky, Carl
2016-10-25 21:20           ` jb
2016-10-26  0:02             ` Klatsky, Carl
2016-10-25 15:59       ` Jan Ceuleers
2016-10-26  1:05         ` Benjamin Cronce
2016-10-26 14:49           ` Jan Ceuleers
2016-10-26 15:36             ` Mikael Abrahamsson
2016-10-27 14:32               ` Jonas Mårtensson
2016-10-27 16:56                 ` Dave Taht
2016-10-27 17:56                   ` [Bloat] Sidebar on s-curves David Collier-Brown
2016-10-27 19:30                   ` [Bloat] 22 seconds til bloat on gfiber? David Lang
2016-10-27 19:41                     ` Dave Taht
2016-10-27 19:48                       ` Aaron Wood
2016-10-28 15:51                         ` Jan Ceuleers
2016-10-28 15:55                           ` Klatsky, Carl
2016-10-27 19:45                     ` Aaron Wood
2016-10-27 20:17                   ` Mikael Abrahamsson
2016-12-07  5:40                     ` Jonathan Morton
2016-12-07  7:05                       ` Mikael Abrahamsson
     [not found] <mailman.313.1477591111.3555.bloat@lists.bufferbloat.net>
2016-10-27 19:27 ` Jonathan Foulkes

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