Strings

Overview

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

Library	Time	Instructions	Peak memory	Allocations
JBird	11.3 μs	233.7K	30.5 MB	77
Foundation	86.5 μs	1.9M	370.1 MB	84
Freddy	111.1 μs	2.0M	30.5 MB	89
SwiftyJSON	105.9 μs	2.5M	312.2 MB	88

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	11.4	9.8	11.3	12.1	13.5	14.5	39.3	53,959
Foundation	86.8	72.1	86.5	93.1	95.6	101.3	127.4	10,570
Freddy	111.6	95.3	111.1	119.7	123.3	132.4	154.9	8,406
SwiftyJSON	105.4	93.0	105.9	111.7	114.0	121.5	250.1	8,899

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	15.2	13.0	15.0	16.5	17.9	19.4	35.7	53,959
Foundation	90.9	75.7	90.6	97.3	100.1	106.8	140.4	10,570
Freddy	115.5	98.6	114.9	124.1	128.1	136.8	157.3	8,406
SwiftyJSON	109.0	96.3	109.4	115.5	118.1	125.8	239.4	8,899

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	88,091	25,451	88,895	91,263	97,599	100,415	102,124	53,959
Foundation	11,560	7,848	11,575	12,327	12,663	13,183	13,865	10,570
Freddy	8,991	6,457	9,007	9,703	9,879	10,095	10,490	8,406
SwiftyJSON	9,519	3,999	9,455	10,271	10,423	10,583	10,753	8,899

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	233,823	223,224	233,727	233,983	234,111	237,567	296,355	53,959
Foundation	1,882,581	1,865,758	1,882,111	1,897,471	1,899,519	1,912,831	1,946,646	10,570
Freddy	2,044,523	2,043,366	2,043,903	2,047,999	2,047,999	2,073,599	2,183,686	8,406
SwiftyJSON	2,522,993	2,504,419	2,521,087	2,537,471	2,545,663	2,576,383	2,679,955	8,899

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	30,450,183	29,949,952	30,474,239	30,474,240	30,474,240	30,474,240	30,474,240	53,959
Foundation	368,260,925	29,835,264	370,147,327	645,398,527	672,137,215	706,215,935	714,014,720	10,570
Freddy	30,493,090	29,949,952	30,507,007	30,523,392	30,523,392	30,523,392	30,523,392	8,406
SwiftyJSON	314,889,721	29,917,184	312,213,503	545,259,519	571,998,207	600,506,368	600,506,368	8,899

Malloc (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	77	77	77	77	77	77	77	53,959
Foundation	84	84	84	84	84	84	85	10,570
Freddy	89	89	89	89	89	89	89	8,406
SwiftyJSON	88	88	88	88	88	88	91	8,899

Malloc (bytes total) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	125,536	125,552	125,552	125,552	125,552	125,552	125,552	53,959
Foundation	67,504	67,480	67,519	67,519	67,519	67,519	71,576	10,570
Freddy	70,752	70,729	70,729	70,729	70,729	70,729	70,729	8,406
SwiftyJSON	72,752	72,728	72,767	72,767	72,767	72,767	76,824	8,899

Free (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	77	77	77	77	77	77	77	53,959
Foundation	4	4	4	4	4	4	4	10,570
Freddy	89	89	89	89	89	89	89	8,406
SwiftyJSON	8	8	8	8	8	8	8	8,899

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	53,959
Foundation	80	80	80	80	80	80	81	10,570
Freddy	0	0	0	0	0	0	0	8,406
SwiftyJSON	80	80	80	80	80	80	83	8,899

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	53,959
Foundation	57,664	57,648	57,663	57,663	57,663	57,663	61,744	10,570
Freddy	0	0	0	0	0	0	0	8,406
SwiftyJSON	57,664	57,648	57,663	57,663	57,663	57,663	61,744	8,899

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