This graph shows the fraction of direct connections between a relay and other nodes in the network that are used uni- or bi-directionally. Every 10 seconds, relays determine for every direct connection whether they read and wrote less than a threshold of 20 KiB. Connections below this threshold are excluded from the graph. For the remaining connections, relays determine whether they read/wrote at least 10 times as many bytes as they wrote/read. If so, they classify a connection as "Mostly reading" or "Mostly writing", respectively. All other connections are classified as "Both reading and writing". After classifying connections, read and write counters are reset for the next 10-second interval. The graph shows daily medians and inter-quartile ranges of reported fractions.
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