Benchmarks › 256 KB, pretty-printed

256 KB, pretty-printed

Overview

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

Library	Time	Instructions	Peak memory	Allocations
JBird	388.9 μs	8.2M	31.7 MB	2.6K
Foundation	726.5 μs	16.5M	326.4 MB	3.8K
Freddy	804.4 μs	16.5M	31.1 MB	2.6K
SwiftyJSON	2.74 ms	63.9M	110.3 MB	5.3K

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	390.1	344.4	388.9	402.4	408.8	425.7	460.4	2,514
Foundation	728.2	656.6	726.5	748.5	760.3	777.7	803.6	1,358
Freddy	805.1	726.9	804.4	822.3	832.5	856.1	925.3	1,230
SwiftyJSON	2,747.5	2,500.6	2,742.3	2,809.9	2,834.4	2,924.5	3,326.7	363

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	394.1	347.7	392.4	407.3	412.7	429.6	465.0	2,514
Foundation	732.3	660.0	730.6	753.7	765.4	782.3	807.4	1,358
Freddy	809.3	730.2	808.4	827.4	837.1	858.1	929.0	1,230
SwiftyJSON	2,752.8	2,504.8	2,748.4	2,814.0	2,838.5	2,928.6	3,340.2	363

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	2,566	2,172	2,573	2,635	2,649	2,699	2,903	2,514
Foundation	1,374	1,244	1,377	1,401	1,411	1,481	1,523	1,358
Freddy	1,243	1,081	1,243	1,262	1,276	1,350	1,376	1,230
SwiftyJSON	364	301	365	371	375	387	400	363

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	8,170,432	8,160,125	8,167,423	8,179,711	8,212,479	8,237,055	8,612,007	2,514
Foundation	16,548,289	16,481,064	16,539,647	16,580,607	16,605,183	16,973,823	17,055,505	1,358
Freddy	16,482,171	16,468,526	16,474,111	16,515,071	16,515,071	16,662,527	17,242,671	1,230
SwiftyJSON	63,952,168	63,808,822	63,897,599	63,963,135	64,126,975	67,239,935	67,290,574	363

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	31,720,486	30,556,160	31,735,807	31,752,192	31,752,192	31,752,192	31,752,192	2,514
Foundation	327,012,883	30,277,632	326,369,279	564,133,887	594,542,591	617,611,263	624,803,840	1,358
Freddy	31,054,953	30,539,776	31,064,064	31,064,064	31,064,064	31,064,064	31,064,064	1,230
SwiftyJSON	110,800,275	30,834,688	110,297,087	174,850,047	182,845,439	189,005,823	191,053,824	363

Malloc (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	2,643	2,642	2,642	2,642	2,642	2,642	2,642	2,514
Foundation	3,753	3,753	3,753	3,753	3,753	3,753	3,754	1,358
Freddy	2,651	2,650	2,650	2,650	2,650	2,650	2,650	1,230
SwiftyJSON	5,342	5,341	5,343	5,343	5,343	5,343	5,343	363

Malloc (bytes total) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	1,374,720	1,374,260	1,374,260	1,374,260	1,374,260	1,374,260	1,374,260	2,514
Foundation	379,023	378,904	379,135	379,135	379,135	379,135	383,000	1,358
Freddy	626,944	626,745	626,745	626,745	626,745	626,745	626,745	1,230
SwiftyJSON	1,152,523	1,152,024	1,153,023	1,153,023	1,153,023	1,153,023	1,156,120	363

Free (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	2,643	2,642	2,642	2,642	2,642	2,642	2,642	2,514
Foundation	7	7	7	7	7	7	7	1,358
Freddy	2,651	2,650	2,650	2,650	2,650	2,650	2,650	1,230
SwiftyJSON	1,595	1,595	1,595	1,595	1,595	1,595	1,595	363

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	2,514
Foundation	3,747	3,746	3,747	3,747	3,747	3,747	3,747	1,358
Freddy	0	0	0	0	0	0	0	1,230
SwiftyJSON	3,747	3,746	3,747	3,747	3,747	3,747	3,748	363

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	2,514
Foundation	354,703	354,736	354,815	354,815	354,815	354,815	358,832	1,358
Freddy	0	0	0	0	0	0	0	1,230
SwiftyJSON	354,700	354,736	354,815	354,815	354,815	354,815	358,832	363

---

← 256 KB · All inputs · 512 KB →