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From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Sebastian Moeller <moeller0@gmx.de>
Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] DSLReports Speed Test has latency measurement built-in
Date: Fri, 24 Apr 2015 10:29:20 +0200	[thread overview]
Message-ID: <87wq123p5r.fsf@toke.dk> (raw)
In-Reply-To: <6C0D04CF-53AA-4D18-A4E4-B746AF6487C7@gmx.de> (Sebastian Moeller's message of "Fri, 24 Apr 2015 10:18:18 +0200")

Sebastian Moeller <moeller0@gmx.de> writes:

> I know this is not perfect and the numbers will probably require
> severe "bike-shedding”

Since you're literally asking for it... ;)


In this case we're talking about *added* latency. So the ambition should
be zero, or so close to it as to be indiscernible. Furthermore, we know
that proper application of a good queue management algorithm can keep it
pretty close to this. Certainly under 20-30 ms of added latency. So from
this, IMO the 'green' or 'excellent' score should be from zero to 30 ms.

The other increments I have less opinions about, but 100 ms does seem to
be a nice round number, so do yellow from 30-100 ms, then start with the
reds somewhere above that, and range up into the deep red / purple /
black with skulls and fiery death as we go nearer and above one second?


I very much think that raising peoples expectations and being quite
ambitious about what to expect is an important part of this. Of course
the base latency is going to vary, but the added latency shouldn't. And
sine we have the technology to make sure it doesn't, calling out bad
results when we see them is reasonable!

-Toke

  reply	other threads:[~2015-04-24  8:29 UTC|newest]

Thread overview: 183+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-19  5:26 jb
2015-04-19  7:36 ` David Lang
2015-04-19  7:48   ` David Lang
2015-04-19  9:33   ` jb
2015-04-19 10:45     ` David Lang
2015-04-19  8:28 ` Alex Burr
2015-04-19 10:20 ` Sebastian Moeller
2015-04-19 10:46   ` Jonathan Morton
2015-04-19 16:30     ` Sebastian Moeller
2015-04-19 17:41       ` Jonathan Morton
2015-04-19 19:40         ` Sebastian Moeller
2015-04-19 20:53           ` Jonathan Morton
2015-04-21  2:56             ` Simon Barber
2015-04-21  4:15               ` jb
2015-04-21  4:47                 ` David Lang
2015-04-21  7:35                   ` jb
2015-04-21  9:14                     ` Steinar H. Gunderson
2015-04-21 14:20                     ` David Lang
2015-04-21 14:25                       ` David Lang
2015-04-21 14:28                         ` David Lang
2015-04-21 22:13                           ` jb
2015-04-21 22:39                             ` Aaron Wood
2015-04-21 23:17                             ` jb
2015-04-22  2:14                               ` Simon Barber
2015-04-22  2:56                                 ` jb
2015-04-22 14:32                       ` Simon Barber
2015-04-22 17:35                         ` David Lang
2015-04-23  1:37                           ` Simon Barber
2015-04-24 16:54                             ` David Lang
2015-04-24 17:00                               ` Rick Jones
2015-04-21  9:37                 ` Jonathan Morton
2015-04-21 10:35                   ` jb
2015-04-22  4:04                     ` Steinar H. Gunderson
2015-04-22  4:28                       ` Eric Dumazet
2015-04-22  8:51                         ` [Bloat] RE : " luca.muscariello
2015-04-22 12:02                           ` jb
2015-04-22 13:08                             ` Jonathan Morton
     [not found]                             ` <14ce17a7810.27f7.e972a4f4d859b00521b2b659602cb2f9@superduper.net>
2015-04-22 14:15                               ` Simon Barber
2015-04-22 13:50                           ` [Bloat] " Eric Dumazet
2015-04-22 14:09                             ` Steinar H. Gunderson
2015-04-22 15:26                             ` [Bloat] RE : " luca.muscariello
2015-04-22 15:44                               ` [Bloat] " Eric Dumazet
2015-04-22 16:35                                 ` MUSCARIELLO Luca IMT/OLN
2015-04-22 17:16                                   ` Eric Dumazet
2015-04-22 17:24                                     ` Steinar H. Gunderson
2015-04-22 17:28                                     ` MUSCARIELLO Luca IMT/OLN
2015-04-22 17:45                                       ` MUSCARIELLO Luca IMT/OLN
2015-04-23  5:27                                         ` MUSCARIELLO Luca IMT/OLN
2015-04-23  6:48                                           ` Eric Dumazet
     [not found]                                             ` <CAH3Ss96VwE_fWNMOMOY4AgaEnVFtCP3rPDHSudOcHxckSDNMqQ@mail.gmail.com>
2015-04-23 10:08                                               ` jb
2015-04-24  8:18                                                 ` Sebastian Moeller
2015-04-24  8:29                                                   ` Toke Høiland-Jørgensen [this message]
2015-04-24  8:55                                                     ` Sebastian Moeller
2015-04-24  9:02                                                       ` Toke Høiland-Jørgensen
2015-04-24 13:32                                                         ` jb
2015-04-24 13:58                                                           ` Toke Høiland-Jørgensen
2015-04-24 16:51                                                           ` David Lang
2015-04-25  3:15                                                       ` Simon Barber
2015-04-25  4:04                                                         ` Dave Taht
2015-04-25  4:26                                                           ` Simon Barber
2015-04-25  6:03                                                             ` Sebastian Moeller
2015-04-27 16:39                                                               ` Dave Taht
2015-04-28  7:18                                                                 ` Sebastian Moeller
2015-04-28  8:01                                                                   ` David Lang
2015-04-28  8:19                                                                     ` Toke Høiland-Jørgensen
2015-04-28 15:42                                                                       ` David Lang
2015-04-28  8:38                                                                     ` Sebastian Moeller
2015-04-28 12:09                                                                       ` Rich Brown
2015-04-28 15:26                                                                         ` David Lang
2015-04-28 15:39                                                                       ` David Lang
2015-04-28 11:04                                                                     ` Mikael Abrahamsson
2015-04-28 11:49                                                                       ` Sebastian Moeller
2015-04-28 12:24                                                                         ` Mikael Abrahamsson
2015-04-28 13:44                                                                           ` Sebastian Moeller
2015-04-28 19:09                                                                             ` Rick Jones
2015-04-28 14:06                                                                       ` Dave Taht
2015-04-28 14:02                                                                   ` Dave Taht
2015-05-06  5:08                                                               ` Simon Barber
2015-05-06  8:50                                                                 ` Sebastian Moeller
2015-05-06 15:30                                                                   ` Jim Gettys
2015-05-06 18:03                                                                     ` Sebastian Moeller
2015-05-06 20:25                                                                     ` Jonathan Morton
2015-05-06 20:43                                                                       ` Toke Høiland-Jørgensen
2015-05-07  7:33                                                                         ` Sebastian Moeller
2015-05-07  4:29                                                                       ` Mikael Abrahamsson
2015-05-07  7:08                                                                         ` jb
2015-05-07  7:18                                                                           ` Jonathan Morton
2015-05-07  7:24                                                                             ` Mikael Abrahamsson
2015-05-07  7:40                                                                               ` Sebastian Moeller
2015-05-07  9:16                                                                                 ` Mikael Abrahamsson
2015-05-07 10:44                                                                                   ` jb
2015-05-07 11:36                                                                                     ` Sebastian Moeller
2015-05-07 11:44                                                                                     ` Mikael Abrahamsson
2015-05-07 13:10                                                                                       ` Jim Gettys
2015-05-07 13:18                                                                                         ` Mikael Abrahamsson
2015-05-07 13:14                                                                                       ` jb
2015-05-07 13:26                                                                                         ` Neil Davies
2015-05-07 14:45                                                                                         ` Simon Barber
2015-05-07 22:27                                                                                           ` Dave Taht
2015-05-07 22:45                                                                                             ` Dave Taht
2015-05-07 23:09                                                                                             ` Dave Taht
2015-05-08  2:05                                                                                               ` jb
2015-05-08  4:16                                                                                                 ` David Lang
2015-05-08  3:54                                                                                               ` Eric Dumazet
2015-05-08  4:20                                                                                                 ` Dave Taht
2015-05-08 13:20                                                                                     ` [Bloat] DSLReports Jitter/PDV test Rich Brown
2015-05-08 14:22                                                                                       ` jb
2015-05-07  7:37                                                                             ` [Bloat] DSLReports Speed Test has latency measurement built-in Sebastian Moeller
2015-05-07  7:19                                                                           ` Mikael Abrahamsson
2015-05-07  6:19                                                                       ` Sebastian Moeller
2015-04-25  3:23                                                       ` Simon Barber
2015-04-24 15:20                                                     ` Bill Ver Steeg (versteb)
2015-04-25  2:24                                                   ` Simon Barber
2015-04-23 10:17                                             ` renaud sallantin
2015-04-23 14:10                                               ` Eric Dumazet
2015-04-23 14:38                                                 ` renaud sallantin
2015-04-23 15:52                                                   ` Jonathan Morton
2015-04-23 16:00                                                     ` Simon Barber
2015-04-23 13:17                                             ` MUSCARIELLO Luca IMT/OLN
2015-04-22 18:22                                       ` Eric Dumazet
2015-04-22 18:39                                         ` [Bloat] Pacing --- was " MUSCARIELLO Luca IMT/OLN
2015-04-22 19:05                                           ` Jonathan Morton
2015-04-22 15:59                               ` [Bloat] RE : " Steinar H. Gunderson
2015-04-22 16:16                                 ` Eric Dumazet
2015-04-22 16:19                                 ` Dave Taht
2015-04-22 17:15                                   ` Rick Jones
2015-04-19 12:14 ` [Bloat] " Toke Høiland-Jørgensen
  -- strict thread matches above, loose matches on Subject: below --
2015-04-19 12:56 jb
2015-04-19 13:10 ` Toke Høiland-Jørgensen
2015-04-19 13:53   ` jb
2015-04-19 15:38     ` Toke Høiland-Jørgensen
2015-04-19 16:38       ` Toke Høiland-Jørgensen
2015-04-19 17:15         ` Mikael Abrahamsson
2015-04-19 17:43           ` Dave Taht
2015-04-19 19:22             ` Dave Taht
2015-04-23 17:03               ` Dave Taht
2015-04-23 18:04                 ` Mikael Abrahamsson
2015-04-23 18:08                   ` Jonathan Morton
2015-04-23 20:19                   ` jb
2015-04-23 20:39                     ` Dave Taht
2015-04-24 21:45                     ` Rich Brown
2015-04-25  1:14                       ` jb
2015-04-23 21:44                   ` Rich Brown
2015-04-23 22:22                     ` Dave Taht
2015-04-23 22:29                       ` Dave Taht
2015-04-24  1:58                       ` Rich Brown
2015-04-24  2:40                         ` Dave Taht
2015-04-24  3:20                           ` Jim Gettys
2015-04-24  3:39                             ` Dave Taht
2015-04-24  4:04                               ` Dave Taht
2015-04-24  4:17                                 ` Dave Taht
2015-04-24 16:13                                   ` Rick Jones
2015-04-24  5:00                                 ` jb
2015-04-27 16:28                                   ` Dave Taht
2015-04-24 16:09                               ` Rick Jones
2015-04-24 13:49                         ` Pedro Tumusok
2015-04-23 22:51                     ` David Lang
2015-04-24  1:38                       ` Rich Brown
2015-04-24  4:16                   ` Mikael Abrahamsson
2015-04-24  4:24                     ` Dave Taht
2015-04-19 17:45           ` Toke Høiland-Jørgensen
2015-04-19 18:26             ` Jonathan Morton
2015-04-19 18:30               ` Toke Høiland-Jørgensen
2015-04-19 19:15                 ` Jonathan Morton
2015-04-20  3:15                 ` Aaron Wood
2015-04-20  7:00                   ` jb
     [not found]                     ` <CACQiMXbF9Uk3H=81at-Z9a2fdYKrRtRorSXRg5dBcPB8-aR4Cw@mail.gmail.com>
2015-04-20  8:11                       ` jb
2015-04-19 19:19             ` Mikael Abrahamsson
2015-04-19 21:57           ` Rich Brown
2015-04-19 23:21             ` jb
2015-04-20 14:51               ` David Lang
2015-04-20 15:51                 ` Dave Taht
2015-04-20 16:15                   ` Dave Taht
2015-04-19  0:57 Rich Brown
2015-04-19  4:01 ` Dave Taht
2015-04-20 14:33   ` Colin Dearborn
2015-04-19  8:29 ` Dave Taht
2015-04-19  8:38   ` Dave Taht
2015-04-19 12:21     ` jb
2015-04-19  9:17   ` MUSCARIELLO Luca IMT/OLN
2015-04-19 12:03     ` jb
2015-04-19 10:53 ` dikshie
2015-04-19 12:11   ` jb

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