z-qa-performance

Installation
SKILL.md

Load and throughput testing

Choose the workload and success contract before choosing a tool. Reuse the project's load runner and targets.

Establish the experiment

Record target, authorization, expected traffic, test data, duration, concurrency/rate limits, and cleanup. Derive latency/error thresholds from the service's requirements or an explicit experiment; example numbers are not universal SLAs.

Use existing k6 or Locust scripts when appropriate. Do not reject another established tool based on unrelated project history.

Choose the workload model

Question Model
Fixed number of active users Closed model: VUs with realistic pacing
Independent request/arrival rate Open model: constant or ramping arrival-rate executor
Multiple journeys Named scenarios with separate rates or user populations

A single arrival-rate workload already warrants a named scenario. Closed models reduce offered load as responses slow, which can hide overload. For open models, bound allocated VUs and inspect dropped_iterations.

Installs
13
First Seen
Jul 2, 2026