Sharkbench

Benchmarking programming languages and web frameworks

Vert.x: Semeru vs Temurin

Vert.x is a toolkit for building reactive applications on the JVM designed to be lightweight, high-performance, and modular. It enables developers to create microservices and distributed systems with ease through an event-driven, non-blocking development model. Vert.x supports multiple programming languages and emphasizes performance and scalability.

This benchmark tests how fast a framework can perform concurrent HTTP requests, I/O operations, and JSON de/serialization.

OS: LinuxCPU: Intel Core Ultra 5 325Last Updated: 2026-10-14

Comparison

Temurin processes 1.68x requests per second compared to Semeru, a 68.02% improvement.

MedianP99

Mode	Requests per second How many requests per second can the framework handle? (higher is better)	Latency How long does it take to process a request? (lower is better)	Stability How stable is the framework under load? (median / P99 latency) (higher is better)	Memory How much memory (RAM) does the framework use? (lower is better)	Build Time Fetching dependencies + compiling, excluding SDK setup (lower is better)
Temurin	34697 (+68.02 %)	0.9 ms (-39.77 %)	43.00 % (-8.45 %)	323.2 MB (+43.90 %)	17.71 s (-16.54 %)
Semeru	20650	1.4 ms	51.45 %	224.6 MB	21.22 s

All results

MedianP99

Framework	Requests per second How many requests per second can the framework handle? (higher is better)	Latency How long does it take to process a request? (lower is better)	Stability How stable is the framework under load? (median / P99 latency) (higher is better)	Memory How much memory (RAM) does the framework use? (lower is better)	Build Time Fetching dependencies + compiling, excluding SDK setup (lower is better)
Java (Temurin v25) / Vert.x v4	34697	0.9 ms	43.00 %	323.2 MB	17.71 s
Java (Temurin v21) / Vert.x v4	34519	0.9 ms	42.36 %	334.5 MB	18.49 s
Java (Temurin v17) / Vert.x v4	32443	0.9 ms	41.17 %	326.9 MB	18.32 s
Java (Temurin v11) / Vert.x v4	31690	0.9 ms	39.41 %	322.1 MB	26.14 s
Java (Semeru v25) / Vert.x v4	20650	1.4 ms	51.45 %	224.6 MB	21.22 s
Java (Semeru v21) / Vert.x v4	20979	1.4 ms	50.66 %	225.3 MB	20.19 s
Java (Semeru v17) / Vert.x v4	21480	1.4 ms	50.76 %	230.2 MB	19.78 s
Java (Semeru v11) / Vert.x v4	20831	1.4 ms	50.07 %	208.7 MB	20.82 s

Popular web frameworks

How does Vert.x compare to other popular frameworks?

MedianP99

Framework	Requests per second How many requests per second can the framework handle? (higher is better)	Latency How long does it take to process a request? (lower is better)	Stability How stable is the framework under load? (median / P99 latency) (higher is better)	Memory How much memory (RAM) does the framework use? (lower is better)	Build Time Fetching dependencies + compiling, excluding SDK setup (lower is better)
Java (Temurin) / Vert.x	34697	0.9 ms	43.00 %	323.2 MB	17.71 s
Rust / Axum	26670	1.2 ms	74.13 %	16.5 MB	26.69 s
Java (Semeru) / Vert.x	20650	1.4 ms	51.45 %	224.6 MB	21.22 s
C# (.NET) / ASP.NET Core	17041	1.5 ms	23.04 %	101.8 MB	6.09 s
JavaScript (Node.js) / Express	15270	2.0 ms	29.45 %	228.4 MB	4.92 s
Java (Temurin) / Spring Boot (MVC)	2962	1.6 ms	1.86 %	286.4 MB	37.73 s
Go / Gin	1640	3.4 ms	3.65 %	23.1 MB	32.20 s
Python / FastAPI (Uvicorn)	792	32.9 ms	20.81 %	63.3 MB	8.55 s
Python / Flask (Gunicorn)	320	99.9 ms	56.36 %	110.2 MB	8.94 s
Python / Django (Gunicorn)	279	103.8 ms	57.16 %	151.9 MB	10.29 s
PHP / Laravel	92	319.0 ms	80.90 %	80.4 MB	95.22 s