I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
slow test URLs:
- https://en.wikipedia.org/wiki/Mexico - https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b7/How_Open_Acce...
vs fast downloads from my test site:
- https://brionv.com/misc/mjpeg/How_Open_Access_Empowered_a_16-Year-Old_to_Mak...
or the speed test widget at http://speedtest.comcast.net
Does anybody know if this might be some kind of throttling specific to Wikipedia (did they notice we're all using it? ;) or a technical problem between our servers and the hotel's ISP?
-- brion
I have _upload_ 7 pictures with 26 MB in 3 Minutes. (150 kB/s) but in the time, who are the most eating ;) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=7&user=Ralf+R...
Ralf
2015-07-15 19:45 GMT-05:00 Brion Vibber bvibber@wikimedia.org:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
slow test URLs:
https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b7/How_Open_Acce...
vs fast downloads from my test site:
https://brionv.com/misc/mjpeg/How_Open_Access_Empowered_a_16-Year-Old_to_Mak...
or the speed test widget at http://speedtest.comcast.net
Does anybody know if this might be some kind of throttling specific to Wikipedia (did they notice we're all using it? ;) or a technical problem between our servers and the hotel's ISP?
-- brion
Wikimania-l mailing list Wikimania-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikimania-l
On Wed, Jul 15, 2015 at 8:08 PM, Ralf Roletschek ralf@roletschek.de wrote:
I have _upload_ 7 pictures with 26 MB in 3 Minutes. (150 kB/s) but in the time, who are the most eating ;)
https://commons.wikimedia.org/wiki/Special:ListFiles?limit=7&user=Ralf+R...
Heh... on further poking, I can confirm that uploads run at the full ~500 kbytes/sec for me, but the response download *on the same connection* is right back down to 20-30 kbytes/sec.
Weeeeird! :D When I get back downstairs I'll retest on the hackathon network, see if that behaves different from the hotel one.
-- brion
Ralf
2015-07-15 19:45 GMT-05:00 Brion Vibber bvibber@wikimedia.org:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
slow test URLs:
https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b7/How_Open_Acce...
vs fast downloads from my test site:
https://brionv.com/misc/mjpeg/How_Open_Access_Empowered_a_16-Year-Old_to_Mak...
or the speed test widget at http://speedtest.comcast.net
Does anybody know if this might be some kind of throttling specific to Wikipedia (did they notice we're all using it? ;) or a technical problem between our servers and the hotel's ISP?
-- brion
Wikimania-l mailing list Wikimania-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikimania-l
--
Ralf Roletschek https://commons.wikimedia.org/wiki/User:Ralf_Roletschek Fragen zum Fahrrad? - http://www.fahrradmonteur.de
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Anecdotally, I can say that the hackathon network was very slow this morning (I used the Hilton one since then), and that ssh to WMF servers on the Hilton network had pretty bad latency. On Jul 15, 2015 20:20, "Brion Vibber" bvibber@wikimedia.org wrote:
On Wed, Jul 15, 2015 at 8:08 PM, Ralf Roletschek ralf@roletschek.de wrote:
I have _upload_ 7 pictures with 26 MB in 3 Minutes. (150 kB/s) but in the time, who are the most eating ;)
https://commons.wikimedia.org/wiki/Special:ListFiles?limit=7&user=Ralf+R...
Heh... on further poking, I can confirm that uploads run at the full ~500 kbytes/sec for me, but the response download *on the same connection* is right back down to 20-30 kbytes/sec.
Weeeeird! :D When I get back downstairs I'll retest on the hackathon network, see if that behaves different from the hotel one.
-- brion
Ralf
2015-07-15 19:45 GMT-05:00 Brion Vibber bvibber@wikimedia.org:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
slow test URLs:
https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b7/How_Open_Acce...
vs fast downloads from my test site:
https://brionv.com/misc/mjpeg/How_Open_Access_Empowered_a_16-Year-Old_to_Mak...
or the speed test widget at http://speedtest.comcast.net
Does anybody know if this might be some kind of throttling specific to Wikipedia (did they notice we're all using it? ;) or a technical problem between our servers and the hotel's ISP?
-- brion
Wikimania-l mailing list Wikimania-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikimania-l
--
Ralf Roletschek https://commons.wikimedia.org/wiki/User:Ralf_Roletschek Fragen zum Fahrrad? - http://www.fahrradmonteur.de
Wikimania-l mailing list Wikimania-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikimania-l
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Hi Brion,
such issues may be based on routing, depending of the peerings between the Hilton ISP and Wikimedia. One would need to check both ASes and use the respective looking glasses (does Wikimedia have one?) to check the routes. Many routes are also assymmetrical, so up- and downlink can vary.
/Manuel
Am 16.07.2015 um 02:45 schrieb Brion Vibber:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
On Wed, Jul 15, 2015 at 8:32 PM, Manuel Schneider < manuel.schneider@wikimedia.ch> wrote:
Hi Brion,
such issues may be based on routing, depending of the peerings between the Hilton ISP and Wikimedia. One would need to check both ASes and use the respective looking glasses (does Wikimedia have one?) to check the routes. Many routes are also assymmetrical, so up- and downlink can vary.
*nod*
Filed in phab and attached some traceroute info from my end: https://phabricator.wikimedia.org/T105984
-- brion
/Manuel
Am 16.07.2015 um 02:45 schrieb Brion Vibber:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
-- Wikimedia CH - Verein zur Förderung Freien Wissens Lausanne, +41 (21) 34066-22 - www.wikimedia.ch
Wikimania-l mailing list Wikimania-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikimania-l
Oh, Cogent and Telia... I have seen issues between the two before...
/Manuel
Am 16.07.2015 um 03:50 schrieb Brion Vibber:
*nod*
Filed in phab and attached some traceroute info from my end: https://phabricator.wikimedia.org/T105984
On 16.07.2015 03:50, Brion Vibber wrote:
On Wed, Jul 15, 2015 at 8:32 PM, Manuel Schneider <manuel.schneider@wikimedia.ch mailto:manuel.schneider@wikimedia.ch> wrote:
Hi Brion, such issues may be based on routing, depending of the peerings between the Hilton ISP and Wikimedia. One would need to check both ASes and use the respective looking glasses (does Wikimedia have one?) to check the routes. Many routes are also assymmetrical, so up- and downlink can vary.*nod*
Filed in phab and attached some traceroute info from my end: https://phabricator.wikimedia.org/T105984
This remembers me similar problems we have had remarked in Hong-Kong (I don't remember the ticket number) where people had (still have?) problems to upload data to Commons even with theoretically good-enough connections.
At that time is was IMO pretty obvious that we suffer of a lack of End-2-End approach of the problem (in particular lack of tool to make the correct measurements).
Emmanuel
Emmanuel Engelhart, 16/07/2015 06:54:
This remembers me similar problems we have had remarked in Hong-Kong (I don't remember the ticket number) where people had (still have?) problems to upload data to Commons even with theoretically good-enough connections.
Context: bug 60283. http://phabricator.wikimedia.org/T62283
At that time is was IMO pretty obvious that we suffer of a lack of End-2-End approach of the problem (in particular lack of tool to make the correct measurements).
Yeah, there are probably hundreds of regions with similar problems at least for some part of the users which we never get to know about.
Nemo
Am 16.07.2015 um 06:54 schrieb Emmanuel Engelhart:
At that time is was IMO pretty obvious that we suffer of a lack of End-2-End approach of the problem (in particular lack of tool to make the correct measurements).
that's exactly what we need a looking glass I have asked for. Almost every owner of an AS runs a looking glass to be able - and help other people to - analyse such issues. Because they are more common than you might think.
So do we have a looking glass? If not, who can set up one?
/Manuel
On Thu, Jul 16, 2015 at 9:59 AM, Manuel Schneider < manuel.schneider@wikimedia.ch> wrote:
Am 16.07.2015 um 06:54 schrieb Emmanuel Engelhart:
At that time is was IMO pretty obvious that we suffer of a lack of End-2-End approach of the problem (in particular lack of tool to make the correct measurements).
that's exactly what we need a looking glass I have asked for. Almost every owner of an AS runs a looking glass to be able - and help other people to - analyse such issues. Because they are more common than you might think.
So do we have a looking glass? If not, who can set up one?
I don't believe we do; someone has to manually log in and do the measurements so far. :(
File a request in Phabricator for now and I'll bug the ops folks about it. :)
-- brion
/Manuel
Wikimedia CH - Verein zur Förderung Freien Wissens Lausanne, +41 (21) 34066-22 - www.wikimedia.ch
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Am 16.07.2015 um 17:42 schrieb Brion Vibber:
I don't believe we do; someone has to manually log in and do the measurements so far. :(
File a request in Phabricator for now and I'll bug the ops folks about it. :)
done:
https://phabricator.wikimedia.org/T106056
/Manuel
Ok, Faidon poked at it: confirmed that one of the routes coming back from our servers to the hotel network was highly congested and switched priorities to the non-congested route.
Much, much improved. :)
Details at https://phabricator.wikimedia.org/T105984#1457294
-- brion
On Wed, Jul 15, 2015 at 8:50 PM, Brion Vibber bvibber@wikimedia.org wrote:
On Wed, Jul 15, 2015 at 8:32 PM, Manuel Schneider < manuel.schneider@wikimedia.ch> wrote:
Hi Brion,
such issues may be based on routing, depending of the peerings between the Hilton ISP and Wikimedia. One would need to check both ASes and use the respective looking glasses (does Wikimedia have one?) to check the routes. Many routes are also assymmetrical, so up- and downlink can vary.
*nod*
Filed in phab and attached some traceroute info from my end: https://phabricator.wikimedia.org/T105984
-- brion
/Manuel
Am 16.07.2015 um 02:45 schrieb Brion Vibber:
I'm seeing verrrrrry slow downloads from Wikipedia on the hotel wifi, on the order of 20-30 kbytes/sec, whereas I get a very respectable 500 kbytes/sec to everywhere else.
-- Wikimedia CH - Verein zur Förderung Freien Wissens Lausanne, +41 (21) 34066-22 - www.wikimedia.ch
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