A modern network latency monitor and a fresh take on SmokePing. Pings targets with fping, stores results in TimescaleDB and renders gradient "smoke-style" graphs with packet-loss indicators and time ranges from 15 minutes to 3 years — including a LibreNMS plugin for per-device latency graphs.

RoundTrip is network latency monitoring with smoke-style graphs — a modern take on SmokePing. It pings targets with fping, stores results in TimescaleDB, and renders layered gradient "smoke" charts with packet-loss markers.

Key features

Smoke-style visualisation — individual ping RTTs layered as gradients, loss marked clearly, interactive tooltips
Time ranges from 15 minutes to 3 years, backed by TimescaleDB's time-series storage
Target grouping for sane organisation at scale
Runs alongside LibreNMS (one nginx include) or fully standalone
Token-based auth with users, targets and groups managed via CLI

Under the hood

PHP/Laravel + Node frontend on PostgreSQL 15 with TimescaleDB, using fping 5.5+ with JSON output — a feature we contributed the initial implementation for. Install scripts handle dependencies, database setup and systemd services on Debian 11–13 and Ubuntu 20.04–24.04.

Who it's for

Anyone who loved what SmokePing told them but not the 2003 experience of running it. Open source on GitHub.