512 KB

Overview

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

Library	Time	Instructions	Peak memory	Allocations
JBird	728.6 μs	15.8M	33.2 MB	5.3K
Foundation	1.40 ms	32.5M	336.9 MB	7.4K
Freddy	1.58 ms	32.4M	31.7 MB	5.3K
SwiftyJSON	5.21 ms	122.4M	115.2 MB	10.6K

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	732.5	653.4	728.6	759.3	775.2	825.3	896.2	1,350
Foundation	1,402.1	1,272.4	1,399.8	1,433.6	1,454.1	1,490.9	1,562.4	709
Freddy	1,575.5	1,426.1	1,577.0	1,606.7	1,625.1	1,649.7	1,697.5	631
SwiftyJSON	5,192.9	4,929.0	5,206.0	5,279.7	5,337.1	5,550.1	5,556.8	192

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	736.7	657.2	732.7	763.4	779.8	828.9	901.3	1,350
Foundation	1,406.5	1,276.4	1,403.9	1,438.7	1,457.2	1,502.2	1,566.3	709
Freddy	1,579.9	1,430.9	1,581.1	1,611.8	1,628.2	1,654.8	1,700.9	631
SwiftyJSON	5,199.0	4,924.4	5,214.2	5,283.8	5,341.2	5,561.7	5,561.7	192

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	1,366	1,116	1,373	1,397	1,408	1,501	1,530	1,350
Foundation	714	640	715	727	733	763	786	709
Freddy	635	589	634	647	652	688	701	631
SwiftyJSON	193	180	192	197	199	203	203	192

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	15,772,064	15,759,447	15,769,599	15,794,175	15,826,943	15,859,711	16,607,891	1,350
Foundation	32,486,618	32,402,922	32,473,087	32,555,007	32,587,775	32,931,839	33,535,074	709
Freddy	32,403,203	32,375,522	32,391,167	32,456,703	32,473,087	32,751,615	33,462,432	631
SwiftyJSON	122,434,219	122,214,377	122,355,711	122,421,247	122,748,927	128,909,311	129,116,933	192

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	33,135,997	31,195,136	33,177,599	33,177,600	33,177,600	33,177,600	33,177,600	1,350
Foundation	337,817,409	30,736,384	336,855,039	584,581,119	616,562,687	645,103,616	645,103,616	709
Freddy	31,723,721	31,227,904	31,719,423	31,768,576	31,768,576	31,768,576	31,768,576	631
SwiftyJSON	115,767,339	31,621,120	115,212,287	181,796,863	192,282,623	199,213,056	199,213,056	192

Malloc (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	5,278	5,276	5,276	5,276	5,276	5,276	5,276	1,350
Foundation	7,438	7,438	7,439	7,439	7,439	7,439	7,439	709
Freddy	5,278	5,279	5,279	5,279	5,279	5,279	5,279	631
SwiftyJSON	10,612	10,610	10,612	10,612	10,612	10,612	10,612	192

Malloc (bytes total) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	2,747,392	2,747,572	2,747,572	2,747,572	2,747,572	2,747,572	2,747,572	1,350
Foundation	743,180	743,064	743,423	743,423	743,423	743,423	747,160	709
Freddy	1,251,840	1,251,769	1,251,769	1,251,769	1,251,769	1,251,769	1,251,769	631
SwiftyJSON	2,288,640	2,289,176	2,289,336	2,289,336	2,289,336	2,289,336	2,289,336	192

Free (total) (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	5,278	5,276	5,276	5,276	5,276	5,276	5,276	1,350
Foundation	8	8	8	8	8	8	8	709
Freddy	5,278	5,279	5,279	5,279	5,279	5,279	5,279	631
SwiftyJSON	3,181	3,180	3,180	3,180	3,180	3,180	3,180	192

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	1,350
Foundation	7,430	7,430	7,431	7,431	7,431	7,431	7,431	709
Freddy	0	0	0	0	0	0	0	631
SwiftyJSON	7,430	7,430	7,431	7,431	7,431	7,431	7,432	192

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	1,350
Foundation	702,732	702,512	702,975	702,975	702,975	702,975	706,608	709
Freddy	0	0	0	0	0	0	0	631
SwiftyJSON	702,720	702,512	702,672	702,672	702,672	702,672	702,672	192

← 256 KB, pretty-printed · All inputs · 512 KB, pretty-printed →