HTTP server & framework benchmarks

blacksheep benchmark results

blacksheep 2.6 is a python web framework. At concurrency 64 it serves 37 653 requests per second with a P50 latency of 1.70 ms, ranking 264 of 383 overall and 12 of 46 among python frameworks.

Language: python 3.14
Framework version: 2.6
Website: https://github.com/Neoteroi/BlackSheep
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Throughput, latency & reliability

All measured metrics for blacksheep 2.6, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	37 653	37 329	36 942
P50 latency	1.70 ms	6.88 ms	13.92 ms
P75 latency	1.73 ms	6.93 ms	14.04 ms
P90 latency	1.77 ms	7.01 ms	14.17 ms
P99 latency	2.02 ms	7.27 ms	14.49 ms
P99.999 latency	4.88 ms	50.85 ms	506.67 ms
Average latency	1.71 ms	6.90 ms	13.95 ms
Minimum latency	0.56 ms	0.42 ms	0.51 ms
Standard deviation	0.14 ms	0.90 ms	7.85 ms
Total requests	564 808	559 988	554 247
Bytes received	71.80 MB	71.18 MB	70.45 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 blacksheep on requests per second.
Concurrency	Overall	Among python frameworks
64	264 of 383	12 of 46
256	263 of 383	12 of 46
512	262 of 383	13 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