HTTP server & framework benchmarks

uwebsockets benchmark results

uwebsockets 20.71 is a javascript web framework. At concurrency 64 it serves 258 863 requests per second with a P50 latency of 0.22 ms, ranking 4 of 383 overall and 3 of 69 among javascript frameworks.

Language: javascript ES2019
Framework version: 20.71
Website: https://github.com/uNetworking/uWebSockets.js
Compare uwebsockets →

Throughput, latency & reliability

All measured metrics for uwebsockets 20.71, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	258 863	242 223	234 757
P50 latency	0.22 ms	1.06 ms	2.19 ms
P75 latency	0.29 ms	1.18 ms	2.33 ms
P90 latency	0.33 ms	1.21 ms	2.43 ms
P99 latency	0.59 ms	1.27 ms	2.47 ms
P99.999 latency	0.73 ms	4.02 ms	7.53 ms
Average latency	0.25 ms	1.05 ms	2.17 ms
Minimum latency	0.03 ms	0.03 ms	0.03 ms
Standard deviation	0.09 ms	0.19 ms	0.25 ms
Total requests	3 883 050	3 633 660	3 521 887
Bytes received	302.15 MB	282.82 MB	274.09 MB
HTTP errors	0	0	0
Request timeouts	0	0	0
Socket connection errors	0	0	0
Socket read errors	0	0	0
Socket write errors	0	0	0

Position in this benchmark

Position of uwebsockets on requests per second.
Concurrency	Overall	Among javascript frameworks
64	4 of 383	3 of 69
256	5 of 383	3 of 69
512	5 of 383	3 of 69

Badge for your README

Show the rank of uwebsockets in your README. The image is updated together with the results.

[![Web Frameworks Benchmark](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/uwebsockets/badge.svg)](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/uwebsockets/)

[![Web Frameworks Benchmark](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/uwebsockets/badge-language.svg)](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/uwebsockets/)

Explore javascript frameworks

Fastest javascript frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	morojs-engine 1.1	281 498	0.21 ms	0.47 ms
2	morojs 1.8	279 251	0.21 ms	0.53 ms
4	fulmine.js 5.21	258 434	0.24 ms	0.59 ms
5	sifrr 0	214 306	0.28 ms	0.74 ms
6	ultimate-express 2.2	206 646	0.35 ms	1.00 ms
7	elysia-bun 1.4	199 540	0.31 ms	0.68 ms
8	mesh 0.8	192 510	0.34 ms	0.80 ms
9	routejs-uwebsocket 3	176 564	0.35 ms	0.89 ms
10	morojs-uws 1.8	176 414	0.36 ms	0.85 ms
11	ignisia 0.2	166 833	0.37 ms	0.78 ms

All 69 javascript frameworks