256 KB

Overview

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

Library	Time	Instructions	Peak memory	Allocations
JBird	372.0 μs	7.9M	31.8 MB	2.6K
Foundation	706.0 μs	16.3M	331.6 MB	3.8K
Freddy	797.2 μs	16.2M	31.1 MB	2.6K
SwiftyJSON	2.59 ms	61.1M	113.8 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	373.5	329.4	372.0	384.5	391.4	412.2	797.3	2,623
Foundation	714.0	636.1	706.0	724.5	737.8	761.9	10,703.3	1,385
Freddy	805.9	718.2	797.2	814.6	825.3	846.8	10,969.5	1,229
SwiftyJSON	2,606.9	2,320.4	2,588.7	2,631.7	2,650.1	2,689.0	13,542.5	382

Time (total CPU) (μs)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	377.4	332.8	376.1	388.9	396.3	418.0	540.1	2,623
Foundation	710.9	639.6	709.6	729.1	741.4	766.5	832.7	1,385
Freddy	801.9	721.7	801.3	819.7	828.9	851.5	907.3	1,229
SwiftyJSON	2,584.0	2,332.6	2,592.8	2,637.8	2,654.2	2,699.3	2,950.3	382

Throughput (# / s) (per second)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	2,681	1,254	2,689	2,755	2,775	2,845	3,036	2,623
Foundation	1,415	93	1,417	1,445	1,461	1,531	1,572	1,385
Freddy	1,253	91	1,255	1,276	1,288	1,368	1,392	1,229
SwiftyJSON	387	74	386	398	400	413	431	382

Instructions (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	7,894,319	7,886,876	7,892,991	7,905,279	7,938,047	7,946,239	8,325,458	2,623
Foundation	16,291,679	16,226,282	16,285,695	16,326,655	16,343,039	16,572,415	16,621,680	1,385
Freddy	16,209,815	16,193,487	16,203,775	16,244,735	16,244,735	16,334,847	16,981,208	1,229
SwiftyJSON	61,073,805	60,996,911	61,079,551	61,112,319	61,243,391	61,374,463	62,271,522	382

Memory (resident peak) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	31,877,508	30,572,544	31,768,575	32,489,472	32,489,472	32,489,472	32,489,472	2,623
Foundation	332,842,592	30,277,632	331,612,159	581,435,391	611,844,095	634,994,688	634,994,688	1,385
Freddy	31,082,894	30,556,160	31,096,831	31,096,832	31,096,832	31,096,832	31,096,832	1,229
SwiftyJSON	114,948,879	30,834,688	113,836,031	183,107,583	191,496,191	198,197,248	198,197,248	382

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	2,623
Foundation	3,753	3,753	3,753	3,753	3,753	3,753	3,754	1,385
Freddy	2,651	2,650	2,650	2,650	2,650	2,650	2,650	1,229
SwiftyJSON	5,342	5,341	5,343	5,343	5,343	5,343	5,343	382

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	2,623
Foundation	379,023	378,904	379,135	379,135	379,135	379,135	383,000	1,385
Freddy	626,944	626,745	626,745	626,745	626,745	626,745	626,745	1,229
SwiftyJSON	1,152,523	1,152,024	1,153,023	1,153,023	1,153,023	1,153,023	1,156,120	382

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	2,623
Foundation	7	7	7	7	7	7	7	1,385
Freddy	2,651	2,650	2,650	2,650	2,650	2,650	2,650	1,229
SwiftyJSON	1,595	1,595	1,595	1,595	1,595	1,595	1,595	382

Malloc / free Δ (count)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	2,623
Foundation	3,747	3,746	3,747	3,747	3,747	3,747	3,747	1,385
Freddy	0	0	0	0	0	0	0	1,229
SwiftyJSON	3,747	3,746	3,747	3,747	3,747	3,747	3,748	382

Malloc / free Δ (bytes) (bytes)

	Mean	p0	p50	p90	p95	p99	p100	Samples
JBird	0	0	0	0	0	0	0	2,623
Foundation	354,703	354,736	354,815	354,815	354,815	354,815	358,832	1,385
Freddy	0	0	0	0	0	0	0	1,229
SwiftyJSON	354,699	354,736	354,815	354,815	354,815	354,815	358,832	382

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