khanwinter.com / CBOR
A fast, safe, and efficient CBOR serialization library for Swift on any platform. swiftpackageindex.com/thecoolwinter/CBOR/1.1.1/documentation/cbor
atproto swift cbor
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CBOR / Benchmarks / comparison-encoding.md
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Comparing results between 'swiftcbor' and 'Current_run'#

Host 'Khans-MacBook-Pro.local' with 10 'arm64' processors with 16 GB memory, running:
Darwin Kernel Version 24.3.0: Thu Jan  2 20:24:16 PST 2025; root:xnu-11215.81.4~3/RELEASE_ARM64_T6000

Encoding#

Array metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (μs) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 665 666 669 675 682 715 758 1383
Current_run 470 471 471 474 481 501 535 2093
Δ -195 -195 -198 -201 -201 -214 -223 710
Improvement % 29 29 30 30 29 30 29 710

Array Small metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 6874 7003 7043 7083 7167 7879 23417 10000
Current_run 2749 2875 2917 2959 2959 3125 22791 10000
Δ -4125 -4128 -4126 -4124 -4208 -4754 -626 0
Improvement % 60 59 59 58 59 60 3 0

Bool metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 3041 3167 3169 3209 3251 3583 18209 10000
Current_run 1041 1124 1125 1126 1167 1292 8333 10000
Δ -2000 -2043 -2044 -2083 -2084 -2291 -9876 0
Improvement % 66 65 64 65 64 64 54 0

Complex Codable Object metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (μs) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 123 124 124 124 127 140 166 5760
Current_run 91 92 92 92 94 99 122 10000
Δ -32 -32 -32 -32 -33 -41 -44 4240
Improvement % 26 26 26 26 26 29 27 4240

Data metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 5168 5295 5335 5375 5459 6003 19667 10000
Current_run 1125 1208 1250 1250 1292 1417 5584 10000
Δ -4043 -4087 -4085 -4125 -4167 -4586 -14083 0
Improvement % 78 77 77 77 76 76 72 0

Data Small metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 3833 3917 3959 3959 4001 4375 21958 10000
Current_run 916 959 1000 1000 1042 1167 4875 10000
Δ -2917 -2958 -2959 -2959 -2959 -3208 -17083 0
Improvement % 76 76 75 75 74 73 78 0

Dictionary metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 11 11 11 11 11 14 31 10000
Current_run 5 5 5 6 6 6 25 10000
Δ -6 -6 -6 -5 -5 -8 -6 0
Improvement % 55 55 55 45 45 57 19 0

Dictionary Small metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 7292 7419 7459 7503 7667 8583 23833 10000
Current_run 2750 2875 2959 3001 3125 3585 18375 10000
Δ -4542 -4544 -4500 -4502 -4542 -4998 -5458 0
Improvement % 62 61 60 60 59 58 23 0

Int metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 3874 3959 4001 4043 4127 4835 21584 10000
Current_run 1208 1291 1292 1333 1334 1459 15501 10000
Δ -2666 -2668 -2709 -2710 -2793 -3376 -6083 0
Improvement % 69 67 68 67 68 70 28 0

Int Small metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 3708 3793 3833 3875 3917 4419 21792 10000
Current_run 1124 1208 1208 1250 1250 1375 5458 10000
Δ -2584 -2585 -2625 -2625 -2667 -3044 -16334 0
Improvement % 70 68 68 68 68 69 75 0

Simple Codable Object metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 17 18 18 18 18 23 43 10000
Current_run 9 9 9 9 10 10 34 10000
Δ -8 -9 -9 -9 -8 -13 -9 0
Improvement % 47 50 50 50 44 57 21 0

String metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 5416 5543 5583 5627 5667 6211 26459 10000
Current_run 1166 1250 1291 1292 1333 1499 24125 10000
Δ -4250 -4293 -4292 -4335 -4334 -4712 -2334 0
Improvement % 78 77 77 77 76 76 9 0

String Small metrics#

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ns) * p0 p25 p50 p75 p90 p99 p100 Samples
swiftcbor 3916 4001 4041 4043 4085 4419 28084 10000
Current_run 1000 1125 1125 1166 1167 1292 1834 10000
Δ -2916 -2876 -2916 -2877 -2918 -3127 -26250 0
Improvement % 74 72 72 71 71 71 93 0