nanog mailing list archives
Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test
From: Andy Warner <andy () andy net>
Date: Thu, 4 Apr 2013 13:01:59 +0800
The only reliable way to really test performance is to saturate the pipe (Iperf) and have a sufficiently well provisioned target. NDT does a good job using short non-saturation tests, but it is susceptible to slow start and other challenges. In general, NDT results will be more conservative than best case, whereas a lot of other tests are very optimistic best cases. FWIW, the actively maintained code has moved to: https://code.google.com/p/ndt/ and 3.6.4 is a bit more stable and flexible on some platforms than 3.6.5. You can either standup your own test server or point at the public sites run by a few universities and MeasurementLab (http://www.measurementlab.net/mlab_sites), which are not as widely distributed as the Ookla / speedtest.net targets, but they tend to be better provisioned and the result data for the Mlab targets is made available to the public. Once you've compiled the client, you can run again the closest host via: $ web100clt -n ndt.iupui.donar.measurement-lab.org (default install will put the test client in /usr/local/bin) If anybody want to host Mlab collection servers, they're always looking for more hosts (http://measurementlab.net/getinvolved). -- Andy On Thu, Apr 4, 2013 at 8:28 AM, Scott Weeks <surfer () mauigateway com> wrote:
--- nick () foobar org wrote: From: Nick Hilliard <nick () foobar org>They may do some magic with bandwidth delay products.. If that was the case, they may have written it for a standard latency versus something that is unreasonable by interweb standards.I don't know how they calculate bandwidth, but I was surprised that their system gave such wrong results under what were effectively lab conditions. ------------------------------------------ It'd be nice to know if NDT was not accurate as well. Anyone tested it? scott
Current thread:
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test, (continued)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Owen DeLong (Apr 03)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Mike (Apr 04)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Jason Hellenthal (Apr 04)
- RE: Speedtest Results speedtest.net vs Mikrotik bandwidth test Frank Bulk (Apr 05)
- RE: Speedtest Results speedtest.net vs Mikrotik bandwidth test Dennis Burgess (Apr 04)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Scott Weeks (Apr 02)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Alex Pressé (Apr 02)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Scott Weeks (Apr 03)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Steve Haavik (Apr 04)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Srikanth Sundaresan (Apr 04)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Andy Warner (Apr 04)
- Re: Speedtest Results speedtest.net vs Mikrotik bandwidth test Steve Haavik (Apr 04)