HTTP server & framework benchmarks

lucky benchmark results

lucky 1.5 is a crystal web framework. At concurrency 64 it serves 58 057 requests per second with a P50 latency of 0.43 ms, ranking 221 of 383 overall and 12 of 12 among crystal frameworks.

Language: crystal 1.21
Framework version: 1.5
Website: https://luckyframework.org
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Throughput, latency & reliability

All measured metrics for lucky 1.5, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	58 057	56 371	56 032
P50 latency	0.43 ms	3.01 ms	6.28 ms
P75 latency	1.56 ms	6.66 ms	13.23 ms
P90 latency	3.12 ms	10.96 ms	21.45 ms
P99 latency	6.26 ms	20.72 ms	36.98 ms
P99.999 latency	12.88 ms	36.37 ms	51.62 ms
Average latency	1.10 ms	4.53 ms	8.96 ms
Minimum latency	0.03 ms	0.04 ms	0.05 ms
Standard deviation	1.43 ms	4.73 ms	8.70 ms
Total requests	870 886	845 667	840 715
Bytes received	237.81 MB	230.93 MB	229.57 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 lucky on requests per second.
Concurrency	Overall	Among crystal frameworks
64	221 of 383	12 of 12
256	223 of 383	12 of 12
512	225 of 383	12 of 12

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Explore crystal frameworks

Fastest crystal frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	toro 0.5	163 514	0.14 ms	6.72 ms
2	spider-gazelle 8.2	162 561	0.14 ms	6.47 ms
3	router.cr 0.2	161 913	0.14 ms	6.80 ms
4	runcobo 2	157 140	0.14 ms	6.49 ms
5	grip 5	149 928	0.14 ms	7.48 ms
6	athena-routing 0.2	146 161	0.14 ms	7.37 ms
7	kemal 1.14	143 488	0.14 ms	7.23 ms
8	amber 1.5	132 163	0.14 ms	6.41 ms
9	orion 3	124 845	0.14 ms	6.28 ms
10	marten 0.7	83 529	0.21 ms	8.31 ms

All 12 crystal frameworks