Category Archives: visualisation

Network latency analysis with Pharo

Lionel Morino from the University of Bern announced his work on understanding network latency!
Here is his announce!
Hi All,

I have been working on a visualisation of latency on a network. I found an interesting dataset with latency information of 140 cities around the world.
In the visualisation I show different metrics regarding latency such as from each city which other has the best/worst latency; cities that geographically are close but have high latency; far cities that have low latency; and average latency for each city.
When visualising the worst latency for each city I found that, for this network (at least), Valencia and in a minor extent Nairobi represent the worst endpoint for connections (in terms of latency). Also in the visualisation of far cities with low latency, Newmarket in Canada and Toledo in Spain concentrate the best endpoint for connections coming from Europe and North-America respectively.
Here there is a screencast:
If you want to load the code:
Gofer new smalltalkhubUser: ‘merino’
        project: ‘NetworkLatency’;
        package: ‘ConfigurationOfNetworkLatency’;
(ConfigurationOfNetworkLatency project version: ‘0.1’) load.
To execute the visualisation:
NLVisualise new open
I would be glad to have your comments and suggestions.
Best regards,
Leonel Merino

New Woden Video


In a previous email I presented an early video of Woden, my new graphics engine written in Pharo. Here I have a new video in which I show some of the features of Woden:


With Alex, we started rewriting Roassal 3D using Woden, which can be seen in the second half of the video.

I will try to show many more demos in ESUG.

It also should be possible now to load Woden using the following script:

Gofer new smalltalkhubUser: ‘ronsaldo’ project: ‘Woden’; package: ‘ConfigurationOfWoden’; load. (Smalltalk at: #ConfigurationOfWoden) loadBleedingEdge

Later I will make a stable configuration version.