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This module implements an RFC 5424 IETF Syslog Protocol parser in Rust.

CI Documentation crates.io

This tool supports serializing the parsed messages using serde if it's built with the serde-serialize feature.

This library is licensed under the ISC license, a copy of which can be found in LICENSE.txt

The minimum supported Rust version for this library is 1.34.

Performance

On a recent system<sup>1</sup>, a release build takes approximately 8µs to parse an average message and approximately 300ns to parse the smallest legal message. Debug timings are a bit worse -- about 60µs for an average message and about 8µs for the minimal message. A single-threaded Syslog server should be able to parse at least 100,000 messages/s, as long as you run a separate thread for the parser.

This compares very favorably to python syslog-rfc5424-parser<sup>2</sup>, which takes about 300µs for a minimal message, and more than 700µs for an average message.

Footnotes