How to explicitly calculate from AccountingMax til RelayBandwidthRate?

Support Relay Operator
1

I read How can I limit the total amount of bandwidth used by my Tor relay? documentation.

  • If you want to offer X GB in each direction, you could set your RelayBandwidthRate to 20*X KBytes.

However, I do not understand what does the magic number twenty (20) means? Does it mean 20 hours? Why 20 was given as an example?

  • For example, if you have 50 GB to offer each way, you might set your RelayBandwidthRate to 1000 KBytes: this way your relay will always be useful for at least half of each day.

If I can offer 50 GB each way, how do we calculate from 50 GB each way to RelayBandwidthRate of 1000 KBytes?

    AccountingStart day 0:00
    AccountingMax 50 GBytes
    RelayBandwidthRate 1000 KBytes
    RelayBandwidthBurst 5000 KBytes # allow higher bursts but maintain average

The support page had listed the above configuration without further explanation in detail.

How does RelayBandwidthRate and RelayBandwidthBurst work together?

2

Guess 20 was once the minimum - so the example takes something multiplied by 20.

Calculation

Like written in the text, it will help the network for around 1/2day each day.

This would be for constant traffic:

And burst means it will take sometimes more bandwidth when possible, but will then will go back to a slower speed to average at the given rate RelayBandwidthRate

3

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