3

Ookla's speedtest gives the option of running their speed test using a single-threaded or multi-threaded connection.

According to this source:

Most large downloads [over the web] and streaming services operate over a single connection to the server, so it makes sense to measure the throughput available over a single connection. Personally this is my preferred test when comparing ISPs even though it may not show what the connection is capable of with multiple simultaneous connections.

Why would single-threaded connections be the preferred choice when comparing different ISP speeds? I'm guessing to test the quality of an ISP's connection, right?

Giacomo1968
  • 58,727
Friedrich Bauer
  • 71

1 Answers1

0

Many ISPs prioritise Ookla traffic, completely messing up any attempt at direct comparison. The best you can do is test both methods & average them.

Try DSLReports instead. It does use different metrics & one could claim it's a 'better' objective test - but more importantly, most ISPs seem to have forgotten to prioritise it, so it can be more accurate as a real-world comparison. It will also test for bufferbloat.

enter image description here

Clicking the Results gives a far more comprehensive analysis.

No affiliation.

*As mentioned in comments, don't confuse the naming of 'multi-threading' with that normally associated with CPU threads. This is about multiple simultaneous connections.
Also note that bufferbloat is usually of far greater significance than a flat-out speed test, under real-world conditions.

Tetsujin
  • 50,917