HTTP server & framework benchmarks

starlette benchmark results

starlette 1.6 is a python web framework. At concurrency 64 it serves 34 625 requests per second with a P50 latency of 1.87 ms, ranking 273 of 383 overall and 14 of 46 among python frameworks.

Language: python 3.14
Framework version: 1.6
Website: https://www.starlette.io
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Throughput, latency & reliability

All measured metrics for starlette 1.6, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	34 625	34 324	33 942
P50 latency	1.87 ms	7.48 ms	15.11 ms
P75 latency	1.91 ms	7.56 ms	15.21 ms
P90 latency	1.94 ms	7.63 ms	15.34 ms
P99 latency	2.04 ms	7.78 ms	15.79 ms
P99.999 latency	4.75 ms	65.54 ms	638.25 ms
Average latency	1.86 ms	7.50 ms	15.13 ms
Minimum latency	0.50 ms	0.56 ms	0.49 ms
Standard deviation	0.16 ms	1.10 ms	10.37 ms
Total requests	519 388	514 909	509 230
Bytes received	66.02 MB	65.46 MB	64.74 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 starlette on requests per second.
Concurrency	Overall	Among python frameworks
64	273 of 383	14 of 46
256	275 of 383	15 of 46
512	275 of 383	15 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