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mapa17 / Eruliaf

A BitTorrent like overlay peer simulator
GNU General Public License v3.0
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Wrong piece Availability #53

Closed mapa17 closed 12 years ago

mapa17 commented 12 years ago

Results of the Simulation V6 have shown that there is a bug in the piece Availability function. The calculated value is far to low for the number of pieces the different nodes have.

mapa17 commented 12 years ago

Ok the error was the naive approach to have a moving average over the last two values.

The problem is that because the connection list is indirectly ordered in a way that new peers come at the end, the last average summations are done over peers with a very low piece availability and by doing so, lose all the previous knowledge.