The Loadtest journal

Articles

Practical guidance on latency, load testing, observability, and building systems that perform at scale.

Observability Engineering

Demystifying Observability: Step-by-Step Guide to Implementing Metrics in Distributed Systems

Practical architecture and implementation guide to distributed-system metrics with Spring Boot 4, Micrometer, Prometheus, and Grafana, from SLOs and cardinality to operational runbooks.

October 18, 2026 · 25 min read

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Performance Engineering

Understanding P95 and P99 Latency

Learn what P95 and P99 latency mean, how to calculate them, and how to use tail latency to evaluate load tests and troubleshoot slow requests.

October 9, 2026 · 6 min read

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