On Tue, Feb 25, 2014 at 5:04 PM, Nicholas Hopper <hopper@cs.umn.edu> wrote:
Another thought: we also should investigate how various thresholds affect the relationship between the cumulative guard weight total and the total exit weight.
Well, that turns out not to be a real issue: even if we set the guard threshold to 20MBps, the total guard weight still exceeds the total exit weight. Here is a chart showing what fraction of total guard bandwidth is retained as we vary the guard threshold from 0 to 10MBps: https://www-users.cs.umn.edu/~hopper/guards/guard_thresholds_bandwidth.png And here's a chart showing what fraction of clients will choose the highest (max%) and median (median%) guards as we vary the threshold over the same range: https://www-users.cs.umn.edu/~hopper/guards/guard_thresholds_weight.png 2MBps and 6MBps look like interesting points on the curves. -- ------------------------------------------------------------------------ Nicholas Hopper Associate Professor, Computer Science & Engineering, University of Minnesota Visiting Research Director, The Tor Project ------------------------------------------------------------------------