K6 Load Test Report

Load Tests
Curl Latency
Startup Benchmarks
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Bench Stats
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Requests per Second

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Request Latency

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Success Rate
Server CPU Usage
Server Memory Usage
Server Thread Count
Endpoint Reference
Slow POST /sacrifice — Synthetic I/O workload.
Fixed 1,080ms artificial delay (1s ritual + 80ms overhead).
Fast POST /validate — No artificial delay.
Tests raw request handling speed and framework overhead.
Compute Stable GET /sqrt — Pure CPU work (always runs full iterations).
Startup bench: 5 million iterations
Load test: 200 million iterations
Compute Unstable GET /sqrt — Pure CPU work (exits early when converged).
Startup bench: 5 million iterations
Load test: 200 million iterations
Real POST /compute — Mixed CPU + I/O (6 sqrt calculations with delays).
Startup bench: 100K iter × 6, 5ms delay → ~30ms total
Load test: 500K iter × 6, 50ms delay → ~300ms total
Framework Reference
Java
Quarkus2019
Red Hat Container-first Java for Kubernetes and serverless
Spring2003
Rod Johnson Simpler alternative to complex J2EE/EJB
Spring Boot2014
Pivotal/VMware Convention over configuration for Spring
Micronaut2018
Graeme Rocher (Grails) Compile-time DI, no reflection overhead
Helidon SE2018
Oracle Lightweight microservices without app server
Open Liberty2017
IBM Open source cloud-native WebSphere runtime
WildFly1999
Marc Fleury / Red Hat Open source Java EE app server (formerly JBoss AS)
TomEE2011
David Blevins (OpenEJB) Java EE for Tomcat users
Python
FastAPI2018
Sebastián Ramírez (Typer, SQLModel) Modern async API with type hints and auto-docs
Flask2010
Armin Ronacher (Jinja2, Werkzeug, Click) Minimalist micro-framework (started as April Fool's joke)
Django2005
Adrian Holovaty Batteries-included framework for rapid development
aiohttp2013
Andrew Svetlov Async HTTP client/server on asyncio
Sanic2016
Adam Hopkins Node.js-like async performance for Python
PHP
Laravel2011
Taylor Otwell Elegant syntax, better CodeIgniter alternative
Symfony2005
Fabien Potencier (Twig) Enterprise PHP with reusable components
Swoole2012
Rango (韩天峰) Coroutines and async I/O for PHP
RoadRunner2018
Spiral Scout Persistent PHP workers in Go for high performance
Go
net/http2012
Go Team Standard library HTTP server (Go 1.0)
Gin2014
Manu Martinez-Almeida Martini-like API, 40x faster with httprouter
Fiber2019
Fenny Express-inspired API for Go developers
Chi2016
Pressly Lightweight idiomatic router, stdlib only
Rust
Axum2021
Tokio Team Ergonomic Tower-based web framework
Actix-web2017
Nikolay Kim Actor-based high-performance framework
Rocket2016
Sergio Benitez Focus on usability, security, and speed
Node.js
Express2010
TJ Holowaychuk (Koa, Mocha, Jade) Sinatra-inspired minimal web framework
Fastify2016
Matteo Collina (Pino) Low overhead, high performance alternative
NestJS2017
Kamil Myśliwiec Angular-inspired enterprise framework
.NET
ASP.NET Core2016
Microsoft Cross-platform redesign of ASP.NET
Minimal APIs2021
Microsoft Lightweight API syntax introduced in .NET 6
FastEndpoints2021
Đĵ ΝιΓΞΗΛψΚ REPR pattern, faster than MVC controllers
ServiceStack2008
Demis Bellot Message-based web services framework
Runtime Reference
Java
jit
HotSpot JVM Standard JIT compilation at runtime
native
GraalVM Native Image AOT compiled to native binary
uber
Uber JAR Fat JAR with all dependencies (still JIT)
Python
jit
CPython Standard interpreter (no JIT, bytecode only)
native
Nuitka AOT compiled to native binary
uber
PyPy Alternative runtime with tracing JIT
Go
native
Go Compiler Always AOT compiled to native binary
Rust
native
rustc + LLVM Always AOT compiled to native binary
Node.js
jit
V8 Engine JIT compilation at runtime
.NET
jit
CoreCLR Standard JIT compilation at runtime
native
NativeAOT AOT compiled to native binary
uber
Single-file + ReadyToRun Self-contained with pre-compiled assemblies
PHP
jit
Zend Engine Standard interpreter with optional JIT (PHP 8+)