OK qasdfdsaq, you have started to convince me. So, if this is a typical congestion profile let me deduce why we have such an acute onset and decline. (Lay person's language only)
As congestion increases systems can, up to a certain threshold, maintain acceptably low latency, but beyond that point things have to give, or are allowed to give, and the flood gates open. Similarly as congestion reduces systems can just as rapidly restore acceptable levels.
Given that congestion inevitably builds up and reduces gradually, this is the only explanation I can think of. Or, is there perhaps some attribute of the TBB connection to VM or of their latency measuring method that makes the profile look so abrupt?
BTW. I am lazy, but I did follow your link.
It's almost blip time, so I'm off check.
Edit.............................................. ..............................................
Here we go. Here comes the blip.
[img]Download Failed (1)[/img]
Tracing route to bbc.co.uk [212.58.241.131]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms REDDWARF [192.168.1.1]
2 7 ms 5 ms 5 ms 10.14.112.1
3 7 ms 9 ms 7 ms brhm-core-2b-ae3-1179.network.virginmedia.net [2
13.106.229.225]
4 8 ms 7 ms 7 ms brhm-bb-1b-ae8-0.network.virginmedia.net [62.253
.174.77]
5 8 ms 7 ms 7 ms brhm-bb-1a-ae0-0.network.virginmedia.net [62.253
.185.153]
6 116 ms 14 ms 13 ms nrth-bb-1b-ae2-0.network.virginmedia.net [62.253
.185.85]
7 15 ms 14 ms 15 ms tele-ic-4-ae0-0.network.virginmedia.net [62.253.
174.18]
8 32 ms 14 ms 15 ms pos6-1.rt0.thdo.bbc.co.uk [212.58.239.237]
9 * * * Request timed out.
10 15 ms 17 ms 17 ms ae1.er01.rbsov.bbc.co.uk [132.185.254.46]
11 17 ms 16 ms 17 ms 132.185.255.60
12 18 ms 15 ms 37 ms 212.58.241.131
Trace complete.
Tracing route to thinkbroadband.com [80.249.99.130]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms REDDWARF [192.168.1.1]
2 6 ms 5 ms 5 ms 10.14.112.1
3 7 ms 8 ms 12 ms brhm-core-2b-ae3-1180.network.virginmedia.net [2
13.106.229.229]
4 8 ms 9 ms 7 ms brhm-bb-1b-ae8-0.network.virginmedia.net [62.253
.174.77]
5 9 ms 11 ms 8 ms nrth-bb-1a-as4-0.network.virginmedia.net [62.253
.185.105]
6 10 ms 11 ms 11 ms nrth-bb-1b-ae0-0.network.virginmedia.net [62.253
.185.118]
7 13 ms 13 ms 13 ms tele-ic-4-ae0-0.network.virginmedia.net [62.253.
174.18]
8 13 ms 13 ms 13 ms linx-gw1.thn.ncuk.net [195.66.224.240]
9 15 ms 13 ms 14 ms gi0-24-10-star1.core-rs2.thdo.ncuk.net [80.249.9
7.9]
10 98 ms 92 ms 95 ms
www.thinkbroadband.com [80.249.99.130]
Trace complete.