Benchmarks › 512 KB, pretty-printed

512 KB, pretty-printed

Overview

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

Library	Time	Instructions	Peak memory	Allocations
JBird	765.4 μs	16.3M	33.2 MB	5.3K
Foundation	1.43 ms	33.0M	331.4 MB	7.4K
Freddy	1.60 ms	32.9M	31.7 MB	5.3K
SwiftyJSON	5.41 ms	126.1M	112.6 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	769.6	689.1	765.4	796.2	808.4	824.8	925.8	1,286
Foundation	1,433.7	1,302.7	1,434.6	1,467.4	1,489.9	1,529.9	1,629.3	693
Freddy	1,604.7	1,442.6	1,595.4	1,664.0	1,693.7	1,722.4	1,747.3	620
SwiftyJSON	5,390.2	4,995.5	5,406.7	5,541.9	5,607.4	5,685.2	5,697.4	185

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	773.8	692.5	770.0	799.7	813.1	829.4	930.2	1,286
Foundation	1,438.2	1,306.4	1,438.7	1,472.5	1,494.0	1,534.0	1,629.8	693
Freddy	1,609.3	1,446.6	1,601.5	1,670.1	1,697.8	1,731.6	1,779.2	620
SwiftyJSON	5,397.2	5,000.8	5,414.9	5,550.1	5,611.5	5,701.6	5,702.4	185

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	1,300	1,080	1,306	1,327	1,332	1,410	1,451	1,286
Foundation	698	614	697	716	721	746	768	693
Freddy	624	572	627	636	640	671	693	620
SwiftyJSON	186	176	185	193	194	199	200	185

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	16,328,201	16,314,334	16,326,655	16,351,231	16,400,383	16,433,151	17,164,985	1,286
Foundation	32,999,646	32,920,049	32,980,991	33,062,911	33,079,295	33,849,343	33,883,831	693
Freddy	32,943,666	32,919,117	32,931,839	33,013,759	33,013,759	33,193,983	33,661,851	620
SwiftyJSON	126,111,633	125,918,648	126,091,263	126,156,799	126,287,871	128,516,095	130,938,180	185

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	33,132,818	31,178,752	33,161,215	33,177,600	33,177,600	33,177,600	33,177,600	1,286
Foundation	330,914,362	30,703,616	331,350,015	575,668,223	604,504,063	625,999,871	633,618,432	693
Freddy	31,666,731	31,227,904	31,686,655	31,686,655	31,686,655	31,735,808	31,735,808	620
SwiftyJSON	112,780,415	31,621,120	112,590,847	177,602,559	185,204,735	192,413,695	194,117,632	185

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	1,286
Foundation	7,438	7,438	7,439	7,439	7,439	7,439	7,439	693
Freddy	5,278	5,279	5,279	5,279	5,279	5,279	5,279	620
SwiftyJSON	10,612	10,610	10,612	10,612	10,612	10,612	10,612	185

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	1,286
Foundation	743,180	743,064	743,423	743,423	743,423	743,423	747,160	693
Freddy	1,251,840	1,251,769	1,251,769	1,251,769	1,251,769	1,251,769	1,251,769	620
SwiftyJSON	2,288,640	2,289,176	2,289,336	2,289,336	2,289,336	2,289,336	2,289,336	185

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	1,286
Foundation	8	8	8	8	8	8	8	693
Freddy	5,278	5,279	5,279	5,279	5,279	5,279	5,279	620
SwiftyJSON	3,181	3,180	3,180	3,180	3,180	3,180	3,180	185

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	1,286
Foundation	7,430	7,430	7,431	7,431	7,431	7,431	7,431	693
Freddy	0	0	0	0	0	0	0	620
SwiftyJSON	7,430	7,430	7,431	7,431	7,431	7,431	7,432	185

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	1,286
Foundation	702,732	702,512	702,975	702,975	702,975	702,975	706,608	693
Freddy	0	0	0	0	0	0	0	620
SwiftyJSON	702,720	702,512	702,672	702,672	702,672	702,672	702,672	185

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