HTTP server & framework benchmarks

lihil benchmark results

lihil 0.2 is a python web framework. At concurrency 64 it serves 40 796 requests per second with a P50 latency of 1.55 ms, ranking 258 of 383 overall and 11 of 46 among python frameworks.

Language: python 3.14
Framework version: 0.2
Website: https://www.lihil.cc
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Throughput, latency & reliability

All measured metrics for lihil 0.2, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	40 796	39 844	39 491
P50 latency	1.55 ms	6.50 ms	13.20 ms
P75 latency	1.71 ms	6.59 ms	13.30 ms
P90 latency	1.76 ms	6.67 ms	13.38 ms
P99 latency	2.19 ms	6.83 ms	13.81 ms
P99.999 latency	3.98 ms	34.41 ms	338.73 ms
Average latency	1.60 ms	6.52 ms	13.21 ms
Minimum latency	0.53 ms	0.38 ms	0.32 ms
Standard deviation	0.19 ms	0.57 ms	5.43 ms
Total requests	611 961	597 718	592 476
Bytes received	77.78 MB	75.97 MB	75.30 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 lihil on requests per second.
Concurrency	Overall	Among python frameworks
64	258 of 383	11 of 46
256	256 of 383	11 of 46
512	255 of 383	11 of 46

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Explore python frameworks

Fastest python frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	peregrine-wsgi 1.1	191 025	0.30 ms	0.85 ms
2	weft-wsgi 0.1	153 346	0.41 ms	0.52 ms
3	fastpysgi-wsgi 0.6	147 137	0.46 ms	0.58 ms
4	peregrine-asgi 1.1	118 540	0.55 ms	0.68 ms
5	weft-asgi 0.1	118 218	0.53 ms	0.79 ms
6	oxapy 0.11	85 921	0.73 ms	1.34 ms
7	peregrine-blacksheep 2.6	74 401	0.95 ms	1.14 ms
8	emmett 2.7	47 667	1.27 ms	2.98 ms
9	asgineer 0.9	43 752	1.46 ms	2.09 ms
10	mq-bridge-py 0.2	41 435	1.63 ms	1.86 ms

All 46 python frameworks