Hi!

I was wondering why the download speeds are quite low.

I tried today to download 
http://taverna.googlecode.com/files/taverna-workbench-2.1.b2.dmg
- and I seem to get speeds like 10-12 kB/s using Firefox 3.0.11 on OS
X on a 5.5 MBit ADSL-link in UK. Trying the same download from
SourceForge (http://downloads.sourceforge.net/sourceforge/taverna/
taverna-workbench-2.1.b2.dmg using mirror heanet) gives me download
speeds of 500 kB/s.


Trying from a different connection (10 Mbit) in Norway I get using
wget adound 11Kb/s, and abourt 1.4 M/s from the heanet mirror, and 1.6
M/s using the sunet mirror.


Traceroute info from ADSL:

traceroute to downloads.sourceforge.net (216.34.181.59), 64 hops max,
40 byte packets
 1  BeBox (192.168.1.254)  18.085 ms  93.142 ms  99.827 ms
 2  * * *
 3  10.1.2.1 (10.1.2.1)  23.932 ms  24.344 ms  24.767 ms
 4  79.141.38.xx.available.above.net (79.141.38.xx)  23.740 ms  53.274
ms  23.630 ms
 5  bcr1-ge-4-3-0.Londonlnx.savvis.net (195.66.224.39)  25.436 ms
25.317 ms  24.304 ms
 6  bcs2-so-1-1-0.Londonlnx.savvis.net (204.70.193.122)  24.209 ms
bcs1-so-1-1-0.Londonlnx.savvis.net (204.70.193.114)  25.073 ms  24.843
ms
 7  cr1-pos-0-0-3-0.londonuk1.savvis.net (204.70.192.5)  24.282 ms
25.426 ms  24.713 ms
 8  cr1-pos-0-3-2-0.chicago.savvis.net (204.70.192.101)  116.076 ms
cr2-tengig-0-7-0-0.chicago.savvis.net (204.70.196.246)  116.736 ms cr1-
pos-0-3-2-0.chicago.savvis.net (204.70.192.101)  115.203 ms
 9  hr1-te-12-0-1.elkgrovech3.savvis.net (204.70.198.73)  118.200 ms
hr2-tengigabitethernet-12-1.elkgrovech3.savvis.net (204.70.195.122)
116.476 ms hr1-te-12-0-1.elkgrovech3.savvis.net (204.70.198.73)
117.268 ms
10  das3-v3038.ch3.savvis.net (64.37.207.182)  133.758 ms das3-
v3040.ch3.savvis.net (64.37.207.190)  118.065 ms das3-
v3038.ch3.savvis.net (64.37.207.182)  123.455 ms
11  64.27.160.194 (64.27.160.194)  117.567 ms  121.760 ms  122.520 ms
12  downloads.sourceforge.net (216.34.181.59)  116.827 ms  117.815 ms
117.800 ms


from 10 Mbit:

traceroute to downloads.sourceforge.net (216.34.181.59), 30 hops max,
60 byte packets
 1  dmz-gw.infotech.no (82.134.31.1)  0.363 ms  0.664 ms  1.605 ms
 2  62.97.234.73 (62.97.234.73)  2.146 ms  2.139 ms  2.227 ms
 3  193.28.236.253 (193.28.236.253)  13.406 ms  13.394 ms  13.358 ms
 4  TenGigabitEthernet8-4.ar1.OSL2.gblx.net (64.209.94.125)  13.738
ms  13.919 ms  13.881 ms
 5  savvis-1.ar3.FRA3.gblx.net (64.215.195.146)  38.568 ms  38.542 ms
38.497 ms
 6  dcr2-so-1-0-0.frankfurtfrx.savvis.net (204.70.192.169)  36.960 ms
dcr1-so-1-0-0.frankfurtfrx.savvis.net (204.70.194.162)  37.983 ms dcr2-
so-1-0-0.frankfurtfrx.savvis.net (204.70.192.169)  36.410 ms
 7  cr1-pos-0-3-0-0.frankfurtft3.savvis.net (204.70.192.13)  42.015 ms
cr2-pos-0-3-0-1.frankfurtft3.savvis.net (204.70.192.37)  39.792 ms cr1-
pos-0-3-0-0.frankfurtft3.savvis.net (204.70.192.13)  41.922 ms
 8  cr2-pos-0-0-3-1.chicago.savvis.net (204.70.200.85)  134.221 ms
134.485 ms  134.489 ms
 9  hr2-tengigabitethernet-12-1.elkgrovech3.savvis.net
(204.70.195.122)  213.104 ms  210.643 ms  210.635 ms
10  das4-v3043.ch3.savvis.net (64.37.207.202)  134.948 ms  134.845 ms
135.621 ms
11  64.27.160.198 (64.27.160.198)  142.870 ms  142.805 ms  136.526 ms
12  downloads.sourceforge.net (216.34.181.59)  136.353 ms  136.469 ms
136.462 ms


For comparison:

traceroute to sunet.dl.sourceforge.net (194.71.11.73), 30 hops max, 60
byte packets
 1  dmz-gw.infotech.no (82.134.31.1)  0.409 ms  0.281 ms  0.242 ms
 2  62.97.234.73 (62.97.234.73)  0.809 ms  0.781 ms  0.924 ms
 3  193.28.236.253 (193.28.236.253)  12.433 ms  12.574 ms  12.547 ms
 4  193.28.236.210 (193.28.236.210)  14.271 ms * *
 5  oso-b1-link.telia.net (213.248.87.69)  12.638 ms  12.840 ms
12.810 ms
 6  s-bb1-link.telia.net (80.91.249.27)  20.039 ms  20.395 ms  20.375
ms
 7  s-b2-link.telia.net (213.248.66.6)  37.243 ms  35.215 ms  35.397
ms
 8  nordunet-113054-s-b4.c.telia.net (213.248.97.94)  20.089 ms
20.375 ms  20.371 ms
 9  c2sth-so-5-2-0.sunet.se (193.10.68.70)  20.869 ms  20.837 ms
20.798 ms
10  a1sth-ae5.sunet.se (130.242.82.210)  20.437 ms  20.617 ms  20.816
ms
11  ftp-g.sunet.se (193.11.0.242)  21.799 ms  21.985 ms  21.948 ms
12  virweb.archive.sunet.se (194.71.11.73)  22.142 ms  22.183 ms
22.134 ms


For fairness (it seems I'm routed to Chicago for
taverna.googlecode.com) I used a US mirror from sourceforge as well,
superb-west, which gives around 560 kB/s from 10 Mbit and 380 kB/s
from ADSL.


What can be the reason for this? Am I directed to the wrong mirror?
10 kB/s is almost ISDN speeds..!

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