Open Source

High resolution systems performance telemetry

eBPF-powered instrumentation for Linux with near-zero overhead. Capture CPU, scheduler, I/O, network, and syscall metrics at the resolution your systems demand.

Six tools, one binary

Rezolus covers the full observability workflow — from collection to analysis.

monitoring

Agent

Collects system metrics via eBPF with near-zero overhead. Exposes data over HTTP for downstream consumers.

upload

Exporter

Serves Prometheus-compatible metrics with configurable histogram percentiles. Scrape-ready.

fiber_smart_record

Recorder

Captures high-fidelity metric snapshots to Parquet files for benchmarking and performance analysis.

history

Hindsight

Maintains a rolling ring buffer on disk. Trigger snapshots via signal or HTTP for post-incident analysis.

dashboard

Viewer

Interactive web dashboard with PromQL support. Explore recordings or stream live from a running agent.

smart_toy

MCP Server

AI-guided analysis tools. Query recordings with PromQL, detect anomalies, and correlate metrics.

Up and running in seconds

1

Install and start

$curl -fsSL https://install.rezolus.com | bash

This adds the package repo, installs Rezolus, and starts the agent as a systemd service. Supports Debian, Ubuntu, Rocky Linux, and Amazon Linux.

2

Explore your metrics

# Open the interactive dashboard
$rezolus view http://localhost:4241

Streams live metrics from the agent into an interactive web dashboard. The agent listens on 0.0.0.0:4241, so you can also point the viewer at a remote host.

Requires Linux kernel 5.8+ and root. See full installation docs for building from source or managing services individually.

What it measures

Nine sampler categories covering the full Linux performance stack.

Documentation

Everything you need to deploy and operate Rezolus.