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Overview

Median values for each library. For every metric, lower values are better.

Library	Time	Instructions	Peak memory	Allocations
JBird	1.15 ms	24.3M	37.2 MB	4.1K
Foundation	2.18 ms	44.2M	218.0 MB	6.6K
Freddy	2.29 ms	42.4M	32.4 MB	8.2K
SwiftyJSON	9.43 ms	196.1M	77.3 MB	9.8K

All Metrics

The mean of each metric, and its percentiles from p0 (the lowest sample) to p100 (the highest sample). For every metric except throughput, lower values are better.

Time (wall clock) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	1,166.6	1,056.3	1,145.9	1,241.1	1,262.6	1,315.8	1,389.6	851
Foundation	2,191.2	1,956.8	2,183.2	2,302.0	2,332.7	2,469.9	2,496.6	454
Freddy	2,304.7	2,061.6	2,289.7	2,439.2	2,504.7	2,598.9	2,649.3	432
SwiftyJSON	9,392.9	8,803.2	9,429.0	9,568.3	9,584.6	9,682.9	9,804.4	107

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	1,171.1	1,059.8	1,150.0	1,246.2	1,267.7	1,316.9	1,394.6	851
Foundation	2,196.2	1,962.2	2,189.3	2,306.0	2,336.8	2,467.8	2,517.0	454
Freddy	2,309.4	2,065.9	2,295.8	2,443.3	2,502.7	2,594.8	2,664.5	432
SwiftyJSON	9,401.5	8,804.9	9,437.2	9,576.4	9,601.0	9,691.1	9,808.9	107

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	859	720	873	889	894	921	947	851
Foundation	457	401	458	478	481	499	511	454
Freddy	435	377	437	454	456	465	485	432
SwiftyJSON	107	102	106	109	110	112	114	107

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	24,292,919	24,255,670	24,281,087	24,330,239	24,379,391	24,592,383	25,362,382	851
Foundation	44,255,494	44,155,544	44,236,799	44,367,871	44,433,407	44,695,551	44,966,158	454
Freddy	42,405,964	42,358,395	42,401,791	42,532,863	42,631,167	42,663,935	43,133,553	432
SwiftyJSON	196,125,974	195,655,867	196,083,711	196,345,855	196,476,927	199,229,439	201,222,570	107

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	36,687,896	32,227,328	37,158,911	37,208,064	37,208,064	37,208,064	37,208,064	851
Foundation	217,718,766	30,785,536	217,972,735	365,953,023	386,662,399	401,604,607	405,307,392	454
Freddy	32,384,000	31,866,880	32,391,168	32,391,168	32,391,168	32,391,168	32,391,168	432
SwiftyJSON	77,348,634	32,325,632	77,266,943	112,525,311	116,916,223	120,717,311	121,651,200	107

Malloc (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	4,051	4,051	4,051	4,051	4,051	4,051	4,051	851
Foundation	6,638	6,636	6,637	6,637	6,637	6,637	6,637	454
Freddy	8,186	8,187	8,187	8,187	8,187	8,187	8,187	432
SwiftyJSON	9,772	9,774	9,775	9,775	9,775	9,775	9,775	107

Malloc (bytes total) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	3,910,656	3,910,524	3,910,524	3,910,524	3,910,524	3,910,524	3,910,524	851
Foundation	881,929	881,890	882,175	882,175	882,175	882,175	885,986	454
Freddy	1,549,824	1,550,193	1,550,193	1,550,193	1,550,193	1,550,193	1,550,193	432
SwiftyJSON	3,159,059	3,159,986	3,160,063	3,160,063	3,160,063	3,160,063	3,160,114	107

Free (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	4,051	4,051	4,051	4,051	4,051	4,051	4,051	851
Foundation	503	503	503	503	503	503	503	454
Freddy	8,186	8,187	8,187	8,187	8,187	8,187	8,187	432
SwiftyJSON	3,641	3,641	3,641	3,641	3,641	3,641	3,641	107

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	851
Foundation	6,134	6,133	6,134	6,134	6,134	6,134	6,134	454
Freddy	0	0	0	0	0	0	0	432
SwiftyJSON	6,134	6,133	6,134	6,134	6,134	6,134	6,134	107

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	851
Foundation	669,449	669,235	669,695	669,695	669,695	669,695	673,331	454
Freddy	0	0	0	0	0	0	0	432
SwiftyJSON	669,440	669,235	669,363	669,363	669,363	669,363	669,363	107

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