responder 9.2 benchmark results

responder 9.2 is a python web framework. At concurrency 64 it serves 34 683 requests per second with a P50 latency of 1.47 ms, ranking 280 of 358 overall and 19 of 37 among python frameworks.

Language: python 3.14
Framework version: 9.2
Website: http://responder.kennethreitz.org
Open in the interactive charts: compare responder

All measured metrics for responder 9.2, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	34 683	41 152	42 852
P50 latency	1.47 ms	5.32 ms	10.41 ms
P75 latency	2.45 ms	7.57 ms	13.92 ms
P90 latency	3.75 ms	10.27 ms	18.53 ms
P99 latency	7.84 ms	21.75 ms	46.62 ms
P99.999 latency	10.13 ms	67.80 ms	105.53 ms
Average latency	1.84 ms	6.21 ms	11.88 ms
Minimum latency	0.22 ms	0.35 ms	0.48 ms
Standard deviation	1.51 ms	4.09 ms	7.67 ms
Total requests	520 282	617 478	643 220
Bytes received	66.16 MB	78.52 MB	81.79 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

Rank

Position of responder on requests per second.
Concurrency	Overall	Among python frameworks
64	280 of 358	19 of 37
256	276 of 358	19 of 37
512	273 of 358	19 of 37

Other python frameworks

Fastest python frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	oxapy 0.11	158 749	0.38 ms	0.84 ms
2	fastpysgi-wsgi 0.6	153 823	0.36 ms	0.66 ms
3	asgineer 0.9	94 940	0.63 ms	1.77 ms
4	lihil 0.2	88 479	0.62 ms	1.57 ms
5	sanic 25.12	86 796	0.63 ms	2.05 ms
6	blacksheep 2.6	81 792	0.59 ms	2.59 ms
7	mq-bridge-py 0.2	80 833	0.79 ms	1.18 ms
8	baize-asgi 0.20	79 094	0.71 ms	2.20 ms
9	emmett 2.7	77 656	0.73 ms	2.39 ms
10	panther 5.5	76 924	0.69 ms	2.77 ms

All 37 python frameworks