[Bloat] [Rpm] Open Loaded latency data from ookla
Sebastian Moeller
moeller0 at gmx.de
Fri Feb 24 02:43:26 EST 2023
Hi All,
We are getting there...
'The average latency of all tests performed in the tile, represented in milliseconds'
This is infinitely better than no under-load numbers. However, the latency distribution is neither 'normal'* nor fully symmetric (it can not, there is a hard minimum, the minimal path RTT and a hard maximum (icmp timeout) even though the distribution will likely be closer to the minimum than the maximum)**.
Next improvement possibility: they report averages and number of tests, but no measure of variance...
To put a positive spin on it, reporting luli numbers at all is great, as is the potential to improve the reporting quality with small additions!
Regards
Sebastian
*) Which is not a showstopper per se as long as the distribution is unimodal and not too skewed then the average is still intuitively interpretable, but is it?
**) My gut feeling is a beta distribution could be fitted to the data and that functions control parameters reported to better model the expected distribution shape.
P.S.: This time without links to test what triggers getting blocked...
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