[Bloat] [aqm] the side effects of 330ms lag in the real world

Tristan Seligmann mithrandi at mithrandi.net
Tue Apr 29 03:43:39 EDT 2014


On 29 April 2014 09:08, Mikael Abrahamsson <swmike at swm.pp.se> wrote:
> Also, what access method has 300 ms access latency, let alone 3 seconds?
> None that I know of, the meaningful comparison would be ADSL2+ at around
> 25ms and 3G at around 50-100ms.

Latencies on my ADSL2+ connection in Johannesburg, South Africa to my
ISP, a host in the UK, and a host in the USA:

--- www.mweb.co.za ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9011ms
rtt min/avg/max/mdev = 33.720/38.594/66.841/9.507 ms

--- anor.aduial.net ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9010ms
rtt min/avg/max/mdev = 197.966/201.981/211.580/4.619 ms

--- speedtest.atlanta.linode.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9001ms
rtt min/avg/max/mdev = 285.859/292.451/331.214/13.285 ms

And of course, I have bufferbloat mitigation in play.
-- 
mithrandi, i Ainil en-Balandor, a faer Ambar



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