Tor doesn't work like TCP. Clients do give up and retry after about 10-20s. But if a circuit is broken by discarding cells, then the entire circuit needs to be rebuilt, and the request sent again. And the client will probably choose another path, that isn't as congested. A large MaxMemInQueues keeps circuits from breaking during traffic spikes. But you're right, if the whole network is overloaded, it leads to a lot of large buffers that don't do much.
One problem with dynamic limits is that they don't handle traffic spikes well. So we don't want to make it too low, because if your relay has the RAM, it should use it. T |
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