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From: Mikael Abrahamsson <swmike@swm.pp.se>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Bloat] DSLReports Speed Test has latency measurement built-in
Date: Sun, 19 Apr 2015 19:15:52 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.02.1504191913490.16871@uplift.swm.pp.se> (raw)
In-Reply-To: <87k2x8jcnw.fsf@toke.dk>

[-- Attachment #1: Type: TEXT/PLAIN, Size: 644 bytes --]

On Sun, 19 Apr 2015, Toke Høiland-Jørgensen wrote:

> The upload latency figures are definitely iffy, but the download ones 
> seem to match roughly what I've measured myself on this link.

Also, I don't trust parallel latency measures done by for instance ICMP 
ping. Yes, they indicate something, but what?

We need insight into the TCP stack. So how can an application like 
dslresports that runs in a browser, get meaningful performance metrics on 
its measurement TCP-sessions from the OS TCP stack? This is a multi-layer 
problem and I don't see any meaningful progress in this area...

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

  reply	other threads:[~2015-04-19 17:15 UTC|newest]

Thread overview: 170+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
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 [this message]
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
  -- strict thread matches above, loose matches on Subject: below --
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 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
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
2015-05-07  7:37                                                                             ` 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
2015-04-19 12:14 ` Toke Høiland-Jørgensen
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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