Rust serialization benchmark

The goal of these benchmarks is to provide thorough and complete benchmarks for various rust serialization frameworks.

These benchmarks are a work in progress

These benchmarks are still being developed and pull requests to improve benchmarks are welcome.

Interactive site

Calculate the number of messages per second that can be sent/received with various rust serialization frameworks and compression libraries. Documentation

Format

All tests benchmark the following properties (time or size):

• Serialize: serialize data into a buffer
• Deserialize: deserializes a buffer into a normal rust object
• Size: the size of the buffer when serialized
• Zlib: the size of the buffer after zlib compression

Zero-copy deserialization libraries have an additional set of benchmarks:

• Access: accesses a buffer as structured data
• Read: runs through a buffer and reads fields out of it
• Update: updates a buffer as structured data

Some benchmark results may be italicized and followed by an asterisk. Mouse over these for more details on what situation was benchmarked. Other footnotes are located at the bottom.

Last updated: 2024-1-6 17:59:33

log

This data set is composed of HTTP request logs that are small and contain many strings.

Raw data

For operations, time per iteration; for size, bytes. Lower is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	431.85 µs	1.4564 ms*	1705800	520075	413435
alkahest 0.1.5	192.01 µs	†	1045784	454157	389424
bincode 2.0.0-rc	214.70 µs	2.4164 ms	741295	303944	257153
bincode 1.3.3	522.83 µs	1.9999 ms	1045784	373127	311761
bitcode 0.5.0	367.72 µs	2.1733 ms	703664	317711	273622
borsh 1.3.0	544.59 µs	2.1676 ms	885780	362204	286514
bson 2.6.0	2.2021 ms	7.9124 ms	1924682	532821	376270
capnp 0.18.11	603.18 µs	†	1443216	513986	428649
cbor4ii 0.3.2	903.35 µs	4.7859 ms	1407835	403440	324081
ciborium 0.2.1	4.1146 ms	10.843 ms	1407835	403440	324081
databuf 0.5.0	273.40 µs	2.0456 ms	765778	311715	264630
dlhn 0.1.6	784.79 µs	2.4130 ms	724953	301446	253629
flatbuffers 23.5.26	1.4649 ms	†	1276368	468539	388832
msgpacker 0.4.3	1.2243 ms	2.5811 ms	764996	315291	264898
nachricht-serde 0.4.0	5.6419 ms	4.4101 ms	818669	332556	285514
nanoserde 0.1.35	281.51 µs	2.0566 ms	1045784	373127	311761
parity-scale-codec 3.6.9	671.21 µs	2.2498 ms	765778	311743	264518
postcard 1.0.8	420.80 µs	2.2531 ms	724953	302399	253747
pot 3.0.0	2.2387 ms	6.5078 ms	971922	372513	304122
prost 0.12.3	460.64 µs* 2.0537 ms*	2.7789 ms	764951	268137	227947
rkyv 0.7.43	217.42 µs	1.4464 ms* 1.9597 ms*	1011488	383862	333545
rmp-serde 1.1.2	1.3691 ms	3.5583 ms	784997	325384	278219
ron 0.8.1	14.355 ms	16.287 ms	1607459	449158	349713
savefile 0.16.2	203.80 µs	2.1253 ms	1045800	373139	311755
serde_bare 0.5.0	664.63 µs	2.1913 ms	765778	311715	264630
serde_cbor 0.11.2	2.0076 ms	4.9323 ms	1407835	403440	324081
serde_json 1.0.111	3.8404 ms	5.5338 ms	1827461	470560	361090
simd-json 0.13.6	2.0578 ms	4.6324 ms	1827461	470560	361090
speedy 0.8.6	196.67 µs	1.7510 ms	885780	362204	286514

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	22.081 µs*	37.408 µs*	‡
alkahest 0.1.5	1.8561 ns*	24.779 µs*	‡
capnp 0.18.11	79.895 ns*	180.49 µs*	‡
flatbuffers 23.5.26	2.4730 ns* 1.9150 ms*	48.887 µs* 1.9367 ms*	‡
rkyv 0.7.43	1.2370 ns* 503.56 µs*	10.525 µs* 515.33 µs*	9.7220 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	44.46%	99.31%*	41.25%	51.56%	55.13%
alkahest 0.1.5	100.00%	†	67.29%	59.04%	58.53%
bincode 2.0.0-rc	89.43%	59.86%	94.92%	88.22%	88.64%
bincode 1.3.3	36.73%	72.32%	67.29%	71.86%	73.12%
bitcode 0.5.0	52.22%	66.55%	100.00%	84.40%	83.31%
borsh 1.3.0	35.26%	66.73%	79.44%	74.03%	79.56%
bson 2.6.0	8.72%	18.28%	36.56%	50.32%	60.58%
capnp 0.18.11	31.83%	†	48.76%	52.17%	53.18%
cbor4ii 0.3.2	21.26%	30.22%	49.98%	66.46%	70.34%
ciborium 0.2.1	4.67%	13.34%	49.98%	66.46%	70.34%
databuf 0.5.0	70.23%	70.71%	91.89%	86.02%	86.14%
dlhn 0.1.6	24.47%	59.94%	97.06%	88.95%	89.87%
flatbuffers 23.5.26	13.11%	†	55.13%	57.23%	58.62%
msgpacker 0.4.3	15.68%	56.04%	91.98%	85.04%	86.05%
nachricht-serde 0.4.0	3.40%	32.80%	85.95%	80.63%	79.84%
nanoserde 0.1.35	68.21%	70.33%	67.29%	71.86%	73.12%
parity-scale-codec 3.6.9	28.61%	64.29%	91.89%	86.01%	86.17%
postcard 1.0.8	45.63%	64.20%	97.06%	88.67%	89.83%
pot 3.0.0	8.58%	22.23%	72.40%	71.98%	74.95%
prost 0.12.3	41.68%* 9.35%*	52.05%	91.99%	100.00%	100.00%
rkyv 0.7.43	88.31%	100.00%* 73.81%*	69.57%	69.85%	68.34%
rmp-serde 1.1.2	14.02%	40.65%	89.64%	82.41%	81.93%
ron 0.8.1	1.34%	8.88%	43.77%	59.70%	65.18%
savefile 0.16.2	94.21%	68.06%	67.28%	71.86%	73.12%
serde_bare 0.5.0	28.89%	66.01%	91.89%	86.02%	86.14%
serde_cbor 0.11.2	9.56%	29.33%	49.98%	66.46%	70.34%
serde_json 1.0.111	5.00%	26.14%	38.51%	56.98%	63.13%
simd-json 0.13.6	9.33%	31.22%	38.51%	56.98%	63.13%
speedy 0.8.6	97.63%	82.60%	79.44%	74.03%	79.56%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.01%*	28.14%*	‡
alkahest 0.1.5	66.65%*	42.48%*	‡
capnp 0.18.11	1.55%*	5.83%*	‡
flatbuffers 23.5.26	50.02%* 0.00%*	21.53%* 0.54%*	‡
rkyv 0.7.43	100.00%* 0.00%*	100.00%* 2.04%*	100.00%

mesh

This data set is a single mesh. The mesh contains an array of triangles, each of which has three vertices and a normal vector.

Raw data

For operations, time per iteration; for size, bytes. Lower is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	660.18 µs	261.47 µs*	6000024	5378513	5345889
alkahest 0.1.5	149.30 µs	†	6000008	5378500	5345890
bincode 2.0.0-rc	428.11 µs	826.38 µs	6000005	5378497	5345897
bincode 1.3.3	4.8033 ms	3.9906 ms	6000008	5378500	5345890
bitcode 0.5.0	3.3422 ms	6.0858 ms	4688054	4688491	4688168
borsh 1.3.0	6.2013 ms	4.3544 ms	6000004	5378496	5345889
bson 2.6.0	41.196 ms	87.025 ms	23013911	9212089	7497811
capnp 0.18.11	5.5292 ms	†	14000088	7130367	6051062
cbor4ii 0.3.2	9.9601 ms	47.122 ms	13125016	7524114	6757967
ciborium 0.2.1	70.853 ms	103.14 ms	13122324	7524660	6759658
databuf 0.5.0	2.4019 ms	5.3454 ms	6000003	5378495	5345900
dlhn 0.1.6	7.5774 ms	5.2017 ms	6000003	5378495	5345900
flatbuffers 23.5.26	642.34 µs	†	6000024	5378434	5345910
msgpacker 0.4.3	21.449 ms	8.8336 ms	7500005	6058442	6014337
nachricht-serde 0.4.0	132.30 ms	27.298 ms	8125037	6493484	6386940
nanoserde 0.1.35	1.3858 ms	898.78 µs	6000008	5378500	5345890
parity-scale-codec 3.6.9	5.1524 ms	3.9645 ms	6000004	5378496	5345889
postcard 1.0.8	507.29 µs	1.3038 ms	6000003	5378495	5345900
pot 3.0.0	36.480 ms	74.126 ms	10122342	6814618	6852251
prost 0.12.3	7.0122 ms* 8.1612 ms*	14.194 ms	8750000	6665735	6421871
rkyv 0.7.43	191.88 µs	147.75 µs* 147.79 µs*	6000008	5378500	5345892
rmp-serde 1.1.2	13.723 ms	18.928 ms	8125006	6494876	6391037
ron 0.8.1	171.40 ms	252.59 ms	22192885	8970395	8138755
savefile 0.16.2	1.6026 ms	260.35 µs	6000024	5378518	5345893
serde_bare 0.5.0	6.3620 ms	5.0178 ms	6000003	5378495	5345900
serde_cbor 0.11.2	35.809 ms	42.495 ms	13122324	7524660	6759658
serde_json 1.0.111	89.806 ms	80.048 ms	26192883	9566084	8586741
simd-json 0.13.6	54.639 ms	73.179 ms	26192883	9566084	8586741
speedy 0.8.6	1.5915 ms	260.27 µs	6000004	5378496	5345889

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	2.1629 ns*	142.18 µs*	‡
alkahest 0.1.5	1.8561 ns*	77.377 µs*	‡
capnp 0.18.11	104.89 ns*	2.2404 ms*	‡
flatbuffers 23.5.26	2.4741 ns* 37.759 ns*	54.104 µs* 77.459 µs*	‡
rkyv 0.7.43	1.2369 ns* 6.1914 ns*	46.097 µs* 38.713 µs*	106.13 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	22.62%	56.51%*	78.13%	87.17%	87.70%
alkahest 0.1.5	100.00%	†	78.13%	87.17%	87.70%
bincode 2.0.0-rc	34.87%	17.88%	78.13%	87.17%	87.70%
bincode 1.3.3	3.11%	3.70%	78.13%	87.17%	87.70%
bitcode 0.5.0	4.47%	2.43%	100.00%	100.00%	100.00%
borsh 1.3.0	2.41%	3.39%	78.13%	87.17%	87.70%
bson 2.6.0	0.36%	0.17%	20.37%	50.89%	62.53%
capnp 0.18.11	2.70%	†	33.49%	65.75%	77.48%
cbor4ii 0.3.2	1.50%	0.31%	35.72%	62.31%	69.37%
ciborium 0.2.1	0.21%	0.14%	35.73%	62.31%	69.36%
databuf 0.5.0	6.22%	2.76%	78.13%	87.17%	87.70%
dlhn 0.1.6	1.97%	2.84%	78.13%	87.17%	87.70%
flatbuffers 23.5.26	23.24%	†	78.13%	87.17%	87.70%
msgpacker 0.4.3	0.70%	1.67%	62.51%	77.39%	77.95%
nachricht-serde 0.4.0	0.11%	0.54%	57.70%	72.20%	73.40%
nanoserde 0.1.35	10.77%	16.44%	78.13%	87.17%	87.70%
parity-scale-codec 3.6.9	2.90%	3.73%	78.13%	87.17%	87.70%
postcard 1.0.8	29.43%	11.33%	78.13%	87.17%	87.70%
pot 3.0.0	0.41%	0.20%	46.31%	68.80%	68.42%
prost 0.12.3	2.13%* 1.83%*	1.04%	53.58%	70.34%	73.00%
rkyv 0.7.43	77.81%	100.00%* 99.97%*	78.13%	87.17%	87.70%
rmp-serde 1.1.2	1.09%	0.78%	57.70%	72.19%	73.36%
ron 0.8.1	0.09%	0.06%	21.12%	52.27%	57.60%
savefile 0.16.2	9.32%	56.75%	78.13%	87.17%	87.70%
serde_bare 0.5.0	2.35%	2.94%	78.13%	87.17%	87.70%
serde_cbor 0.11.2	0.42%	0.35%	35.73%	62.31%	69.36%
serde_json 1.0.111	0.17%	0.18%	17.90%	49.01%	54.60%
simd-json 0.13.6	0.27%	0.20%	17.90%	49.01%	54.60%
speedy 0.8.6	9.38%	56.77%	78.13%	87.17%	87.70%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	57.19%*	27.23%*	‡
alkahest 0.1.5	66.64%*	50.03%*	‡
capnp 0.18.11	1.18%*	1.73%*	‡
flatbuffers 23.5.26	49.99%* 3.28%*	71.55%* 49.98%*	‡
rkyv 0.7.43	100.00%* 19.98%*	83.98%* 100.00%*	100.00%

minecraft_savedata

This data set is composed of Minecraft player saves that contain highly structured data.

Raw data

For operations, time per iteration; for size, bytes. Lower is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	189.66 µs	1.3198 ms*	1290592	396648	340139
alkahest 0.1.5	220.76 µs	†	667570	325484	320452
bincode 2.0.0-rc	283.96 µs	2.0588 ms	367413	221291	206273
bincode 1.3.3	573.69 µs	1.7915 ms	569975	240525	232423
bitcode 0.5.0	289.62 µs	1.8916 ms	322798	214279	201247
borsh 1.3.0	550.34 µs	1.8177 ms	446595	234236	210008
bson 2.6.0	2.8848 ms	9.0810 ms	1619653	502185	328399
capnp 0.18.11	456.14 µs	†	803896	335606	280851
cbor4ii 0.3.2	792.47 µs	4.7986 ms	1109831	344745	274514
ciborium 0.2.1	3.8102 ms	9.3868 ms	1109821	344751	274526
databuf 0.5.0	326.43 µs	1.7422 ms	356311	213062	198488
dlhn 0.1.6	800.19 µs	2.6113 ms	366496	220600	205683
flatbuffers 23.5.26	3.3525 ms	†	844168	345696	294015
msgpacker 0.4.3	965.00 µs	2.8479 ms	391251	236877	220476
nachricht-serde 0.4.0	5.3845 ms	4.0811 ms	449745	252432	231110
nanoserde 0.1.35	291.58 µs	1.8941 ms	567975	239930	232419
parity-scale-codec 3.6.9	664.56 µs	1.9929 ms	356311	212976	198524
postcard 1.0.8	433.07 µs	2.0056 ms	367489	221913	207344
pot 3.0.0	2.2298 ms	6.0924 ms	599125	299158	247693
prost 0.12.3	995.48 µs* 2.7022 ms*	3.4607 ms	596811	305319	269310
rkyv 0.7.43	301.11 µs	1.2669 ms* 1.7583 ms*	596952	253967	220706
rmp-serde 1.1.2	1.4643 ms	3.0767 ms	424533	245214	226188
ron 0.8.1	8.3345 ms	17.874 ms	1465223	434935	343338
savefile 0.16.2	220.77 µs	1.8269 ms	566991	239361	232010
serde_bare 0.5.0	739.41 µs	2.2384 ms	356311	213062	198488
serde_cbor 0.11.2	1.8077 ms	4.7880 ms	1109821	344751	274526
serde_json 1.0.111	3.7686 ms	6.6920 ms	1623191	466527	359623
simd-json 0.13.6	2.2204 ms	4.5624 ms	1623191	466527	359623
speedy 0.8.6	274.39 µs	1.6557 ms	449595	234970	210361

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	37.519 µs*	37.583 µs*	‡
alkahest 0.1.5	1.8554 ns*	4.6647 µs*	‡
capnp 0.18.11	80.238 ns*	581.51 ns*	‡
flatbuffers 23.5.26	2.4758 ns* 2.1466 ms*	1.3731 µs* 2.1468 ms*	‡
rkyv 0.7.43	1.2369 ns* 488.37 µs*	163.49 ns* 496.53 µs*	916.53 ns

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	100.00%	95.99%*	25.01%	53.69%	58.35%
alkahest 0.1.5	85.91%	†	48.35%	65.43%	61.94%
bincode 2.0.0-rc	66.79%	61.54%	87.86%	96.24%	96.23%
bincode 1.3.3	33.06%	70.72%	56.63%	88.55%	85.40%
bitcode 0.5.0	65.49%	66.98%	100.00%	99.39%	98.63%
borsh 1.3.0	34.46%	69.70%	72.28%	90.92%	94.51%
bson 2.6.0	6.57%	13.95%	19.93%	42.41%	60.44%
capnp 0.18.11	41.58%	†	40.15%	63.46%	70.67%
cbor4ii 0.3.2	23.93%	26.40%	29.09%	61.78%	72.31%
ciborium 0.2.1	4.98%	13.50%	29.09%	61.78%	72.30%
databuf 0.5.0	58.10%	72.72%	90.59%	99.96%	100.00%
dlhn 0.1.6	23.70%	48.52%	88.08%	96.54%	96.50%
flatbuffers 23.5.26	5.66%	†	38.24%	61.61%	67.51%
msgpacker 0.4.3	19.65%	44.49%	82.50%	89.91%	90.03%
nachricht-serde 0.4.0	3.52%	31.04%	71.77%	84.37%	85.88%
nanoserde 0.1.35	65.05%	66.89%	56.83%	88.77%	85.40%
parity-scale-codec 3.6.9	28.54%	63.57%	90.59%	100.00%	99.98%
postcard 1.0.8	43.79%	63.17%	87.84%	95.97%	95.73%
pot 3.0.0	8.51%	20.79%	53.88%	71.19%	80.13%
prost 0.12.3	19.05%* 7.02%*	36.61%	54.09%	69.76%	73.70%
rkyv 0.7.43	62.99%	100.00%* 72.05%*	54.07%	83.86%	89.93%
rmp-serde 1.1.2	12.95%	41.18%	76.04%	86.85%	87.75%
ron 0.8.1	2.28%	7.09%	22.03%	48.97%	57.81%
savefile 0.16.2	85.91%	69.35%	56.93%	88.98%	85.55%
serde_bare 0.5.0	25.65%	56.60%	90.59%	99.96%	100.00%
serde_cbor 0.11.2	10.49%	26.46%	29.09%	61.78%	72.30%
serde_json 1.0.111	5.03%	18.93%	19.89%	45.65%	55.19%
simd-json 0.13.6	8.54%	27.77%	19.89%	45.65%	55.19%
speedy 0.8.6	69.12%	76.52%	71.80%	90.64%	94.36%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.00%*	0.44%*	‡
alkahest 0.1.5	66.66%*	3.50%*	‡
capnp 0.18.11	1.54%*	28.11%*	‡
flatbuffers 23.5.26	49.96%* 0.00%*	11.91%* 0.01%*	‡
rkyv 0.7.43	100.00%* 0.00%*	100.00%* 0.03%*	100.00%

mk48

This data set is composed of mk48.io game updates that contain data with many exploitable patterns and invariants.

Raw data

For operations, time per iteration; for size, bytes. Lower is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	492.86 µs	2.3171 ms*	2984682	1408278	1273666
alkahest 0.1.5	745.34 µs	†	1863391	1234113	1202345
bincode 2.0.0-rc	733.76 µs	3.6634 ms	1372381	1091486	1037296
bincode 1.3.3	3.7602 ms	3.9136 ms	1811011	1115281	1025627
bitcode 0.5.0	1.0885 ms	3.2854 ms	870693	866738	870720
borsh 1.3.0	2.9755 ms	2.5663 ms	1486162	1082357	1013550
bson 2.6.0	24.443 ms	49.830 ms	10030880	2833079	1600859
capnp 0.18.11	2.1578 ms	†	2664040	1511895	1212087
cbor4ii 0.3.2	4.2188 ms	18.567 ms	5878791	1655835	1431390
ciborium 0.2.1	24.209 ms	47.457 ms	5878653	1655791	1431560
databuf 0.5.0	1.7706 ms	3.7469 ms	1288257	1037579	984337
dlhn 0.1.6	5.1918 ms	6.6967 ms	1279599	1052061	1021161
flatbuffers 23.5.26	4.8966 ms	†	2273740	1408408	1235566
msgpacker 0.4.3	2.2453 ms	4.5244 ms	1424043	1128758	1110156
nachricht-serde 0.4.0	30.800 ms	17.922 ms	1728519	1247642	1233323
nanoserde 0.1.35	1.3006 ms	3.0069 ms	1770477	1108304	1029947
parity-scale-codec 3.6.9	3.0333 ms	3.0252 ms	1288257	1039269	986510
postcard 1.0.8	1.8409 ms	3.9292 ms	1279599	1058243	1016738
pot 3.0.0	13.203 ms	30.876 ms	2544810	1447453	1268390
prost 0.12.3	4.1153 ms* 8.2012 ms*	9.3302 ms	1818378	1307777	1266311
rkyv 0.7.43	1.2869 ms	2.1725 ms* 2.7760 ms*	2029080	1335117	1158855
rmp-serde 1.1.2	10.388 ms	11.628 ms	1703813	1231892	1200208
ron 0.8.1	38.632 ms	99.438 ms	8476284	2181196	1783971
savefile 0.16.2	1.0287 ms	2.6657 ms	1750226	1101682	1027827
serde_bare 0.5.0	4.9025 ms	4.4623 ms	1288257	1037597	984356
serde_cbor 0.11.2	9.6509 ms	20.785 ms	5878653	1655791	1431560
serde_json 1.0.111	20.324 ms	28.784 ms	9175594	2334253	1800713
simd-json 0.13.6	11.396 ms	26.158 ms	9175594	2334253	1800713
speedy 0.8.6	718.66 µs	2.5019 ms	1546963	1093532	1013443

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	66.080 µs*	67.483 µs*	‡
alkahest 0.1.5	1.8562 ns*	628.00 ns*	‡
capnp 0.18.11	80.046 ns*	728.61 ns*	‡
flatbuffers 23.5.26	2.4731 ns* 5.0862 ms*	2.6564 µs* 5.0945 ms*	‡
rkyv 0.7.43	1.2374 ns* 599.81 µs*	356.94 ns* 604.01 µs*	625.21 ns

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	100.00%	93.76%*	29.17%	61.55%	68.36%
alkahest 0.1.5	66.13%	†	46.73%	70.23%	72.42%
bincode 2.0.0-rc	67.17%	59.30%	63.44%	79.41%	83.94%
bincode 1.3.3	13.11%	55.51%	48.08%	77.71%	84.90%
bitcode 0.5.0	45.28%	66.13%	100.00%	100.00%	100.00%
borsh 1.3.0	16.56%	84.65%	58.59%	80.08%	85.91%
bson 2.6.0	2.02%	4.36%	8.68%	30.59%	54.39%
capnp 0.18.11	22.84%	†	32.68%	57.33%	71.84%
cbor4ii 0.3.2	11.68%	11.70%	14.81%	52.34%	60.83%
ciborium 0.2.1	2.04%	4.58%	14.81%	52.35%	60.82%
databuf 0.5.0	27.84%	57.98%	67.59%	83.53%	88.46%
dlhn 0.1.6	9.49%	32.44%	68.04%	82.38%	85.27%
flatbuffers 23.5.26	10.07%	†	38.29%	61.54%	70.47%
msgpacker 0.4.3	21.95%	48.02%	61.14%	76.79%	78.43%
nachricht-serde 0.4.0	1.60%	12.12%	50.37%	69.47%	70.60%
nanoserde 0.1.35	37.89%	72.25%	49.18%	78.20%	84.54%
parity-scale-codec 3.6.9	16.25%	71.81%	67.59%	83.40%	88.26%
postcard 1.0.8	26.77%	55.29%	68.04%	81.90%	85.64%
pot 3.0.0	3.73%	7.04%	34.21%	59.88%	68.65%
prost 0.12.3	11.98%* 6.01%*	23.28%	47.88%	66.28%	68.76%
rkyv 0.7.43	38.30%	100.00%* 78.26%*	42.91%	64.92%	75.14%
rmp-serde 1.1.2	4.74%	18.68%	51.10%	70.36%	72.55%
ron 0.8.1	1.28%	2.18%	10.27%	39.74%	48.81%
savefile 0.16.2	47.91%	81.50%	49.75%	78.67%	84.71%
serde_bare 0.5.0	10.05%	48.69%	67.59%	83.53%	88.46%
serde_cbor 0.11.2	5.11%	10.45%	14.81%	52.35%	60.82%
serde_json 1.0.111	2.43%	7.55%	9.49%	37.13%	48.35%
simd-json 0.13.6	4.32%	8.31%	9.49%	37.13%	48.35%
speedy 0.8.6	68.58%	86.83%	56.28%	79.26%	85.92%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.00%*	0.53%*	‡
alkahest 0.1.5	66.66%*	56.84%*	‡
capnp 0.18.11	1.55%*	48.99%*	‡
flatbuffers 23.5.26	50.03%* 0.00%*	13.44%* 0.01%*	‡
rkyv 0.7.43	100.00%* 0.00%*	100.00%* 0.06%*	100.00%

Footnotes:

* mouse over for situational details

† do not provide deserialization capabilities, but the user can write their own

‡ do not support buffer mutation (capnp and flatbuffers may but not for rust)