amber 1.5 benchmark results

amber 1.5 is a crystal web framework. At concurrency 64 it serves 97 511 requests per second with a P50 latency of 0.51 ms, ranking 191 of 358 overall and 10 of 12 among crystal frameworks.

Language: crystal 1.21
Framework version: 1.5
Website: https://amberframework.org
Open in the interactive charts: compare amber

All measured metrics for amber 1.5, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	97 511	77 077	73 486
P50 latency	0.51 ms	3.26 ms	7.19 ms
P75 latency	0.99 ms	4.47 ms	8.69 ms
P90 latency	1.36 ms	5.26 ms	10.04 ms
P99 latency	2.11 ms	6.91 ms	13.62 ms
P99.999 latency	3.45 ms	13.84 ms	24.42 ms
Average latency	0.66 ms	3.32 ms	6.95 ms
Minimum latency	0.02 ms	0.02 ms	0.02 ms
Standard deviation	0.50 ms	1.54 ms	2.74 ms
Total requests	1 462 740	1 156 336	1 102 644
Bytes received	169.27 MB	133.81 MB	127.60 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 amber on requests per second.
Concurrency	Overall	Among crystal frameworks
64	191 of 358	10 of 12
256	225 of 358	10 of 12
512	234 of 358	11 of 12

Other crystal frameworks

Fastest crystal frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	marten 0.6	116 524	0.38 ms	2.34 ms
2	runcobo 2	104 584	0.49 ms	1.87 ms
3	toro 0.5	102 349	0.53 ms	1.87 ms
4	kemal 1.13	100 892	0.49 ms	2.06 ms
5	spider-gazelle 8.1	100 293	0.54 ms	1.91 ms
6	orion 3	99 793	0.49 ms	2.16 ms
7	router.cr 0.2	99 692	0.55 ms	1.93 ms
8	athena-routing 0.2	98 776	0.52 ms	2.06 ms
9	grip 5	98 077	0.56 ms	1.95 ms
11	athena 0.21	95 029	0.50 ms	2.70 ms

All 12 crystal frameworks