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Update README.md about the netgraph feature

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Stephen Seo 2022-10-19 17:20:57 +09:00
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@ -95,6 +95,18 @@ to white).
For a reference of what kind of regex is supported,
[see this page](https://docs.rs/regex/1.6.0/regex/index.html#syntax).
## Net graph
The `--netgraph_max_bytes=<bytes>` arg enables a 10-character-wide text graph
showing a history of network traffic. The algorithm checks the larger of bytes
sent or received in an interval and compares it to `<bytes>`. If it is greater,
then the graph character will be a "full block" character. If it is less, then
the graph character will be something in between out of 9 possible characters (a
space, and [8 unicode block
characters](https://en.wikipedia.org/wiki/Block_Elements)). Thus, this outputs
a history graph of network traffic. A sane value for `<bytes>` can be 1048576,
which is 1 MiB.
## Dependencies
Uses [`serde_json`](https://crates.io/crates/serde_json),