LoadDensity English Documentation

The English manual is split into chapters that follow a typical reader journey: install → run a load test → author actions → harden → scale → integrate. Use the table of contents on the left, or jump straight to a chapter below.

Chapter 1 — Getting Started 

Install LoadDensity, run your first load test, and scaffold a project.

Getting Started

Chapter 2 — Core API 

The Locust-facing facade: environments, runners, and user proxies. Read this once and the rest of the framework stops feeling magical.

Chapter 3 — Action Authoring & Execution 

Compose JSON-driven action scripts, parameterise data, build scenarios, and chain post-test callbacks.

Chapter 4 — User Templates 

The protocol drivers: HTTP, FastHttp, Async HTTP/2, WebSocket, SSE, gRPC (unary + streaming), MQTT, raw TCP/UDP, SQL, Redis, Kafka, and MongoDB. Each template registers as a Locust user with the same task contract.

User Templates

Chapter 5 — Reporting & Observability 

Generate HTML / JSON / XML / CSV / JUnit / percentile-summary / chart reports, ship metrics to Prometheus, InfluxDB, OTLP, or Datadog DogStatsD, and stream live progress to a browser.

Chapter 6 — Orchestration & Scale 

Run distributed master/worker fleets, share state through the parameter resolver, gate execution on extracted variables, and steer ramps with built-in load shapes.

Orchestration

Distributed Master / Worker
- Overview
- Master
- Worker
- Tips

Chapter 7 — Reliability 

Adaptive retry, failure budget / circuit breaker, network conditioner, and process supervisor — the controls that make unattended CI runs safe.

Reliability

Reliability

Chapter 8 — Recording, Data & Importers 

Convert real browser traffic (HAR), Postman v2.1 collections, OpenAPI 3.x specs, standalone cURL commands, k6 scripts, and JMeter JMX plans into runnable action JSON. Persist test records to SQLite, compare runs over time.

Recording, Data & Importers