From: Stefan Alfredsson <Stefan.Alfredsson@kau.se>
To: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] T-Mobile LTE buffer bloat
Date: Thu, 31 Oct 2013 03:04:23 +0100 [thread overview]
Message-ID: <5271BAA7.2080905@kau.se> (raw)
In-Reply-To: <20131030162534.29f34ada@nehalam.linuxnetplumber.net>
Hi, Stephen, the list,
We're running a 3G/4G measurement site at Karlstad university, with
mobile broadband subscriptions from the four major telecom operators in
Sweden. I was curious to see how measurements in our network would
compare to yours, so I did a measurement run with netalyzer.
To summarize, the measured buffering is well below one second for all
tests, although the results are not directly comparable since we are
using directly attached USB modems (Huawei E392 with Ubuntu 12.04)
instead of a separate router box. However, the numbers might be
interesting in a more general perspective.
Tele2 LTE: Upload 12 Mbit/s, 240 ms buffering, Download > 20 Mbit/s,
buffering not measurable
http://n1.netalyzr.icsi.berkeley.edu/summary/id=43ca253f-6593-7f837e62-5321-488e-b480
Tele2 HSPA+: Upload 1.1 Mbit/s, 630 ms buffering, Download > 20 Mbit/s,
509 ms buffering
http://n2.netalyzr.icsi.berkeley.edu/summary/id=43ca208a-23052-a0e80cbb-9a7c-44e0-ba88
Telenor LTE: Upload 16 Mbit/s, 190 ms buffering, Download >20 Mbit/s,
470 ms buffering
http://n3.netalyzr.icsi.berkeley.edu/summary/id=36ea240d-31617-45bca5e3-53ef-450e-a9bf
Telenor HSPA+: Upload 3.4 Mbit/s, 200 ms buffering, Download > 14
Mbit/s, 490 ms buffering
http://n3.netalyzr.icsi.berkeley.edu/summary/id=36ea240d-31612-c6d0d98d-8bcf-4a03-832d
Telia LTE: Upload 18 Mbit/s, 140 ms buffering, Download > 20 Mbit/s,
buffering not measurable
http://n3.netalyzr.icsi.berkeley.edu/summary/id=36ea240d-31599-1ebc684e-c164-4786-832a
Telia HSPA+: Upload 1.1 Mbit/s, 630 ms buffering, Download > 20 Mbit/s,
640 ms buffering
http://n2.netalyzr.icsi.berkeley.edu/summary/id=43ca208a-22984-40c59ae2-0c36-4e67-9039
(note similarity with Tele2 HSPA+ - IIUC Tele2 and Telia share the 3G
network infrastructure)
Tre LTE: Upload 19 Mbit/s, 150 ms buffering, Download > 20 Mbit/s, 98 ms
buffering
http://n3.netalyzr.icsi.berkeley.edu/summary/id=36ea240d-31648-86a273a5-82ae-4929-a634
Tre HSPA+: Upload 3.5 Mbit/s, 190 ms buffering, Download > 8.6 Mbit/s,
780 ms buffering
http://n1.netalyzr.icsi.berkeley.edu/summary/id=43ca253f-6609-3316da33-9ea6-41ca-a8ac
For reference, I also made a measurement from the same host, but using a
wired connection over the Swedish university network: Upload was
measured to > 20 Mbit/s and download to 15 Mbit/s, with no measurable
buffering.
http://n1.netalyzr.icsi.berkeley.edu/summary/id=43ca253f-6563-078896ce-dc0a-4333-9119
Regards,
Stefan Alfredsson
On 10/31/13 00:25 , Stephen Hemminger wrote:
> 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???
>
> Might even return it as defective. You can't even add a review on their
> website. Probably they would end taking down like Apple.
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/bloat
next prev parent reply other threads:[~2013-10-31 2:04 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 23:25 Stephen Hemminger
2013-10-30 23:34 ` Mikael Abrahamsson
2013-10-30 23:35 ` Dave Taht
2013-10-31 0:29 ` Srikanth Sundaresan
2013-10-30 23:57 ` Stephen Hemminger
2013-10-31 0:02 ` Mikael Abrahamsson
2013-10-31 8:43 ` Dirk Kutscher
2013-10-31 0:24 ` Michael Richardson
2013-10-31 0:26 ` Mikael Abrahamsson
2013-10-31 2:04 ` Stefan Alfredsson [this message]
2013-10-31 2:32 ` Dave Taht
2013-10-31 12:27 ` [Bloat] mobile broadband " Stefan Alfredsson
2013-11-01 1:09 ` Dave Taht
2013-11-01 1:32 ` Dave Taht
2013-11-01 1:39 ` Dave Taht
2013-11-01 12:48 ` Mikael Abrahamsson
2013-11-01 20:22 ` Aaron Wood
2013-11-01 20:29 ` Jonathan Morton
2013-11-02 16:41 ` Mikael Abrahamsson
2013-10-31 5:45 [Bloat] T-Mobile LTE " Hal Murray
2013-11-01 14:36 ` Jim Gettys
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