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| Paper: |
The Worldwide Internet Speed Evolution through Analysis of Aladin HiPS Logs |
| Volume: |
538, ADASS XXXII |
| Page: |
178 |
| Authors: |
Pierre Fernique; Mélissa Foechterlé |
| DOI: |
10.26624/CAQF6949 |
| Abstract: |
For years, the astronomical community has been using the Aladin Desktop
client tool to visualize sky surveys such as DSS or 2MASS. These surveys are structured as a hierarchical mosaic of images following the HiPS (Hierarchical Progressive
Survey) standard and are provided to the Aladin clients by a collection of servers (HiPS
nodes) spread around the world. The most widely used HiPS are mirrored on several
servers and each Aladin Desktop session automatically selects the fastest site. Based
on the Aladin Desktop usage logs, we were able to calculate a matrix—evolving over
time—of the Internet speeds measured between the hundreds of thousands of client
sessions and the dozens of servers spread around the world. In order to facilitate the
interpretation of these metrics, we have developed a “HiPS network dashboard,” a dedicated web interface visualizing on a world map the evolution of Internet speeds from
the point of view of the clients country by country, as well as from the point of view of
each HiPS server. |
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