# twitter/rezolus

Systems performance telemetry

Repository: https://github.com/twitter/rezolus
Canonical: https://ross.abutalabs.com/products/rezolus
Language: Rust
License: Apache-2.0
License Family: permissive
Last push: 2023-05-01T11:09:19+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2711, "days_push": 1220, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1602, forks 117 (observed 2026-08-28T04:05:09.725756+00:00)

## What it is
Rezolus is a Rust-based systems performance telemetry agent that collects metrics from procfs/sysfs, perf_events, and eBPF. It oversamples metrics into histograms to expose burst patterns and percentile-level performance anomalies.

## Use cases
- capture burst traffic patterns in system metrics
- profile CPU, disk, and network performance on Linux servers
- collect eBPF-based kernel telemetry
- diagnose performance anomalies via percentile histograms
- monitor hardware performance counters with perf_events
- instrument systems for performance tuning and optimization

## When to choose
- you need high-resolution Linux systems telemetry that captures bursts, not just averages
- you want a single agent combining procfs, perf_events, and BPF sources
- you are doing advanced performance debugging or capacity tuning on Linux hosts

## When to avoid
- you need application-level or distributed tracing rather than host metrics
- you are on non-Linux platforms, as it depends on procfs, perf_events, and BPF
- you want a full metrics pipeline with dashboards and alerting built in

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: monitoring, tracing, analytics
- domain: monitoring, performance, operating-systems
- platform: rust, cli
- tags: telemetry, ebpf, perf-events, high-resolution-metrics, systems-performance, histogram-oversampling, devops, linux

## Member repositories
- twitter/rezolus (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:09.725756+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:52:38.368377+00:00, confidence not recorded.
  - readme: https://github.com/twitter/rezolus (fetched 2026-08-28T04:05:09.725756+00:00, sha d37b6f71edc3)
- Data as of 2026-08-30T08:39:29.467469+00:00.