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: 2023-11-5 23:45:31

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	260.30 µs	2.3287 ms*	1705800	530428	403744
alkahest 0.1.5	239.33 µs	†	1045784	454157	389424
bincode 1.3.3	611.66 µs	3.0228 ms	1045784	373127	311761
bitcode 0.5.0	539.27 µs	3.3111 ms	703664	317711	273622
borsh 1.1.1	498.18 µs	3.3315 ms	885780	362204	286514
bson 2.6.0	2.5798 ms	9.6547 ms	1924682	532821	376270
capnp 0.18.3	589.74 µs	†	1443216	513986	428649
cbor4ii 0.3.1	1.2581 ms	6.4234 ms	1407835	403440	324081
ciborium 0.2.1	2.7487 ms	12.081 ms	1407835	403440	324081
databuf 0.5.0	410.22 µs	3.0645 ms	765778	311715	264630
dlhn 0.1.6	825.61 µs	3.5158 ms	724953	301446	253629
flatbuffers 23.5.26	1.7462 ms	†	1276368	468539	388832
msgpacker 0.4.3	1.5520 ms	3.5557 ms	764996	315291	264898
nachricht-serde 0.4.0	8.5302 ms	5.8462 ms	818669	332556	285514
nanoserde 0.1.35	334.50 µs	2.9938 ms	1045784	373127	311761
parity-scale-codec 3.6.5	616.26 µs	3.2907 ms	765778	311743	264518
postcard 1.0.8	407.03 µs	3.1688 ms	724953	302399	253747
pot 3.0.0	2.7818 ms	7.9580 ms	971922	372513	304122
prost 0.12.1	449.84 µs* 3.1265 ms*	3.9878 ms	764951	268137	227947
rkyv 0.7.42	312.22 µs	2.3555 ms* 3.2806 ms*	1011488	383862	333545
rmp-serde 1.1.2	1.4169 ms	4.5216 ms	784997	325384	278219
ron 0.8.1	16.433 ms	21.407 ms	1607459	449158	349713
savefile 0.16.2	245.55 µs	3.1197 ms	1045800	373139	311755
serde_bare 0.5.0	673.48 µs	3.0918 ms	765778	311715	264630
serde_cbor 0.11.2	1.9627 ms	6.2045 ms	1407835	403440	324081
serde_json 1.0.108	4.3460 ms	7.7952 ms	1827461	470560	361090
simd-json 0.13.4	2.4093 ms	6.8655 ms	1827461	470560	361090
speedy 0.8.6	250.31 µs	2.7216 ms	885780	362204	286514

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	32.734 µs*	57.320 µs*	‡
alkahest 0.1.5	2.4097 ns*	35.300 µs*	‡
capnp 0.18.3	85.777 ns*	191.30 µs*	‡
flatbuffers 23.5.26	2.6924 ns* 2.3031 ms*	69.605 µs* 2.4055 ms*	‡
rkyv 0.7.42	1.2059 ns* 822.26 µs*	17.653 µs* 840.25 µs*	19.713 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	91.94%	100.00%*	41.25%	50.55%	56.46%
alkahest 0.1.5	100.00%	†	67.29%	59.04%	58.53%
bincode 1.3.3	39.13%	77.04%	67.29%	71.86%	73.12%
bitcode 0.5.0	44.38%	70.33%	100.00%	84.40%	83.31%
borsh 1.1.1	48.04%	69.90%	79.44%	74.03%	79.56%
bson 2.6.0	9.28%	24.12%	36.56%	50.32%	60.58%
capnp 0.18.3	40.58%	†	48.76%	52.17%	53.18%
cbor4ii 0.3.1	19.02%	36.25%	49.98%	66.46%	70.34%
ciborium 0.2.1	8.71%	19.28%	49.98%	66.46%	70.34%
databuf 0.5.0	58.34%	75.99%	91.89%	86.02%	86.14%
dlhn 0.1.6	28.99%	66.24%	97.06%	88.95%	89.87%
flatbuffers 23.5.26	13.71%	†	55.13%	57.23%	58.62%
msgpacker 0.4.3	15.42%	65.49%	91.98%	85.04%	86.05%
nachricht-serde 0.4.0	2.81%	39.83%	85.95%	80.63%	79.84%
nanoserde 0.1.35	71.55%	77.78%	67.29%	71.86%	73.12%
parity-scale-codec 3.6.5	38.84%	70.77%	91.89%	86.01%	86.17%
postcard 1.0.8	58.80%	73.49%	97.06%	88.67%	89.83%
pot 3.0.0	8.60%	29.26%	72.40%	71.98%	74.95%
prost 0.12.1	53.20%* 7.65%*	58.40%	91.99%	100.00%	100.00%
rkyv 0.7.42	76.65%	98.86%* 70.98%*	69.57%	69.85%	68.34%
rmp-serde 1.1.2	16.89%	51.50%	89.64%	82.41%	81.93%
ron 0.8.1	1.46%	10.88%	43.77%	59.70%	65.18%
savefile 0.16.2	97.47%	74.64%	67.28%	71.86%	73.12%
serde_bare 0.5.0	35.54%	75.32%	91.89%	86.02%	86.14%
serde_cbor 0.11.2	12.19%	37.53%	49.98%	66.46%	70.34%
serde_json 1.0.108	5.51%	29.87%	38.51%	56.98%	63.13%
simd-json 0.13.4	9.93%	33.92%	38.51%	56.98%	63.13%
speedy 0.8.6	95.61%	85.56%	79.44%	74.03%	79.56%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.00%*	30.80%*	‡
alkahest 0.1.5	50.04%*	50.01%*	‡
capnp 0.18.3	1.41%*	9.23%*	‡
flatbuffers 23.5.26	44.79%* 0.00%*	25.36%* 0.73%*	‡
rkyv 0.7.42	100.00%* 0.00%*	100.00%* 2.10%*	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	424.89 µs	424.28 µs*	6000024	5378513	5345890
alkahest 0.1.5	436.36 µs	†	6000008	5378500	5345890
bincode 1.3.3	3.7774 ms	6.2197 ms	6000008	5378500	5345890
bitcode 0.5.0	4.8602 ms	9.7191 ms	4688054	4688491	4688168
borsh 1.1.1	5.2517 ms	6.3593 ms	6000004	5378496	5345889
bson 2.6.0	52.530 ms	103.07 ms	23013911	9212089	7497811
capnp 0.18.3	8.0638 ms	†	14000088	7130367	6051062
cbor4ii 0.3.1	16.443 ms	59.566 ms	13125016	7524114	6757967
ciborium 0.2.1	69.334 ms	112.48 ms	13122324	7524660	6759658
databuf 0.5.0	1.9503 ms	7.0366 ms	6000003	5378495	5345900
dlhn 0.1.6	7.2621 ms	9.8146 ms	6000003	5378495	5345900
flatbuffers 23.5.26	992.64 µs	†	6000024	5378434	5345910
msgpacker 0.4.3	24.536 ms	10.627 ms	7500005	6058442	6014337
nachricht-serde 0.4.0	205.51 ms	34.514 ms	8125037	6493484	6386940
nanoserde 0.1.35	2.2163 ms	1.1843 ms	6000008	5378500	5345890
parity-scale-codec 3.6.5	4.2512 ms	6.0289 ms	6000004	5378496	5345889
postcard 1.0.8	589.03 µs	1.7932 ms	6000003	5378495	5345900
pot 3.0.0	45.845 ms	78.288 ms	10122342	6814618	6852251
prost 0.12.1	10.626 ms* 12.736 ms*	14.749 ms	8750000	6665735	6421871
rkyv 0.7.42	579.70 µs	434.42 µs* 434.47 µs*	6000008	5378500	5345892
rmp-serde 1.1.2	11.899 ms	20.091 ms	8125006	6494876	6391037
ron 0.8.1	216.84 ms	355.63 ms	22192885	8970395	8138755
savefile 0.16.2	424.54 µs	424.74 µs	6000024	5378518	5345893
serde_bare 0.5.0	6.1374 ms	6.0287 ms	6000003	5378495	5345900
serde_cbor 0.11.2	39.069 ms	50.710 ms	13122324	7524660	6759658
serde_json 1.0.108	108.40 ms	85.095 ms	26192883	9566084	8586741
simd-json 0.13.4	70.986 ms	106.61 ms	26192883	9566084	8586741
speedy 0.8.6	424.52 µs	424.92 µs	6000004	5378496	5345889

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	2.0190 ns*	245.97 µs*	‡
alkahest 0.1.5	2.4101 ns*	100.63 µs*	‡
capnp 0.18.3	141.54 ns*	2.7976 ms*	‡
flatbuffers 23.5.26	2.6901 ns* 49.324 ns*	65.221 µs* 100.50 µs*	‡
rkyv 0.7.42	1.6064 ns* 7.8165 ns*	37.201 µs* 37.506 µs*	237.27 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	99.91%	100.00%*	78.13%	87.17%	87.70%
alkahest 0.1.5	97.29%	†	78.13%	87.17%	87.70%
bincode 1.3.3	11.24%	6.82%	78.13%	87.17%	87.70%
bitcode 0.5.0	8.73%	4.37%	100.00%	100.00%	100.00%
borsh 1.1.1	8.08%	6.67%	78.13%	87.17%	87.70%
bson 2.6.0	0.81%	0.41%	20.37%	50.89%	62.53%
capnp 0.18.3	5.26%	†	33.49%	65.75%	77.48%
cbor4ii 0.3.1	2.58%	0.71%	35.72%	62.31%	69.37%
ciborium 0.2.1	0.61%	0.38%	35.73%	62.31%	69.36%
databuf 0.5.0	21.77%	6.03%	78.13%	87.17%	87.70%
dlhn 0.1.6	5.85%	4.32%	78.13%	87.17%	87.70%
flatbuffers 23.5.26	42.77%	†	78.13%	87.17%	87.70%
msgpacker 0.4.3	1.73%	3.99%	62.51%	77.39%	77.95%
nachricht-serde 0.4.0	0.21%	1.23%	57.70%	72.20%	73.40%
nanoserde 0.1.35	19.15%	35.83%	78.13%	87.17%	87.70%
parity-scale-codec 3.6.5	9.99%	7.04%	78.13%	87.17%	87.70%
postcard 1.0.8	72.07%	23.66%	78.13%	87.17%	87.70%
pot 3.0.0	0.93%	0.54%	46.31%	68.80%	68.42%
prost 0.12.1	4.00%* 3.33%*	2.88%	53.58%	70.34%	73.00%
rkyv 0.7.42	73.23%	97.67%* 97.65%*	78.13%	87.17%	87.70%
rmp-serde 1.1.2	3.57%	2.11%	57.70%	72.19%	73.36%
ron 0.8.1	0.20%	0.12%	21.12%	52.27%	57.60%
savefile 0.16.2	100.00%	99.89%	78.13%	87.17%	87.70%
serde_bare 0.5.0	6.92%	7.04%	78.13%	87.17%	87.70%
serde_cbor 0.11.2	1.09%	0.84%	35.73%	62.31%	69.36%
serde_json 1.0.108	0.39%	0.50%	17.90%	49.01%	54.60%
simd-json 0.13.4	0.60%	0.40%	17.90%	49.01%	54.60%
speedy 0.8.6	100.00%	99.85%	78.13%	87.17%	87.70%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	79.56%*	15.12%*	‡
alkahest 0.1.5	66.65%*	36.97%*	‡
capnp 0.18.3	1.13%*	1.33%*	‡
flatbuffers 23.5.26	59.72%* 3.26%*	57.04%* 37.02%*	‡
rkyv 0.7.42	100.00%* 20.55%*	100.00%* 99.19%*	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	228.35 µs	1.8930 ms*	1290592	394642	331565
alkahest 0.1.5	260.04 µs	†	667570	325484	320452
bincode 1.3.3	646.63 µs	2.5008 ms	569975	240525	232423
bitcode 0.5.0	371.13 µs	2.6455 ms	322798	214279	201247
borsh 1.1.1	566.77 µs	2.5177 ms	446595	234236	210008
bson 2.6.0	3.6259 ms	11.295 ms	1619653	502185	328399
capnp 0.18.3	597.12 µs	†	803896	335606	280851
cbor4ii 0.3.1	1.3185 ms	6.3818 ms	1109831	344745	274514
ciborium 0.2.1	3.6629 ms	11.150 ms	1109821	344751	274526
databuf 0.5.0	468.37 µs	2.4031 ms	356311	213062	198488
dlhn 0.1.6	899.43 µs	3.4345 ms	366496	220600	205683
flatbuffers 23.5.26	3.3032 ms	†	844168	345696	294015
msgpacker 0.4.3	1.2435 ms	3.8844 ms	391251	236877	220476
nachricht-serde 0.4.0	8.1852 ms	5.1700 ms	449745	252432	231110
nanoserde 0.1.35	332.29 µs	2.5975 ms	567975	239930	232419
parity-scale-codec 3.6.5	686.48 µs	2.7559 ms	356311	212976	198524
postcard 1.0.8	478.92 µs	2.6910 ms	367489	221913	207344
pot 3.0.0	2.8120 ms	7.3315 ms	599125	299158	247693
prost 0.12.1	1.3776 ms* 3.9419 ms*	4.6882 ms	596811	305319	269310
rkyv 0.7.42	426.83 µs	1.8029 ms* 2.6746 ms*	596952	253967	220706
rmp-serde 1.1.2	1.6405 ms	3.9731 ms	424533	245214	226188
ron 0.8.1	10.421 ms	21.989 ms	1465223	434935	343338
savefile 0.16.2	278.63 µs	2.4646 ms	566991	239361	232010
serde_bare 0.5.0	817.33 µs	3.1184 ms	356311	213062	198488
serde_cbor 0.11.2	2.1287 ms	6.2878 ms	1109821	344751	274526
serde_json 1.0.108	4.6011 ms	9.6567 ms	1623191	466527	359623
simd-json 0.13.4	2.7741 ms	6.0332 ms	1623191	466527	359623
speedy 0.8.6	334.92 µs	2.2227 ms	449595	234970	210361

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	36.018 µs*	36.629 µs*	‡
alkahest 0.1.5	2.4096 ns*	7.0811 µs*	‡
capnp 0.18.3	85.754 ns*	663.94 ns*	‡
flatbuffers 23.5.26	2.6824 ns* 2.5876 ms*	1.7827 µs* 2.5912 ms*	‡
rkyv 0.7.42	1.2058 ns* 752.90 µs*	145.52 ns* 755.35 µs*	1.7123 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate	Serialize	Deserialize	Size	Zlib	Zstd
abomonation 0.7.3	100.00%	95.24%*	25.01%	53.97%	59.86%
alkahest 0.1.5	87.81%	†	48.35%	65.43%	61.94%
bincode 1.3.3	35.31%	72.09%	56.63%	88.55%	85.40%
bitcode 0.5.0	61.53%	68.15%	100.00%	99.39%	98.63%
borsh 1.1.1	40.29%	71.61%	72.28%	90.92%	94.51%
bson 2.6.0	6.30%	15.96%	19.93%	42.41%	60.44%
capnp 0.18.3	38.24%	†	40.15%	63.46%	70.67%
cbor4ii 0.3.1	17.32%	28.25%	29.09%	61.78%	72.31%
ciborium 0.2.1	6.23%	16.17%	29.09%	61.78%	72.30%
databuf 0.5.0	48.75%	75.02%	90.59%	99.96%	100.00%
dlhn 0.1.6	25.39%	52.49%	88.08%	96.54%	96.50%
flatbuffers 23.5.26	6.91%	†	38.24%	61.61%	67.51%
msgpacker 0.4.3	18.36%	46.41%	82.50%	89.91%	90.03%
nachricht-serde 0.4.0	2.79%	34.87%	71.77%	84.37%	85.88%
nanoserde 0.1.35	68.72%	69.41%	56.83%	88.77%	85.40%
parity-scale-codec 3.6.5	33.26%	65.42%	90.59%	100.00%	99.98%
postcard 1.0.8	47.68%	67.00%	87.84%	95.97%	95.73%
pot 3.0.0	8.12%	24.59%	53.88%	71.19%	80.13%
prost 0.12.1	16.58%* 5.79%*	38.46%	54.09%	69.76%	73.70%
rkyv 0.7.42	53.50%	100.00%* 67.41%*	54.07%	83.86%	89.93%
rmp-serde 1.1.2	13.92%	45.38%	76.04%	86.85%	87.75%
ron 0.8.1	2.19%	8.20%	22.03%	48.97%	57.81%
savefile 0.16.2	81.95%	73.15%	56.93%	88.98%	85.55%
serde_bare 0.5.0	27.94%	57.81%	90.59%	99.96%	100.00%
serde_cbor 0.11.2	10.73%	28.67%	29.09%	61.78%	72.30%
serde_json 1.0.108	4.96%	18.67%	19.89%	45.65%	55.19%
simd-json 0.13.4	8.23%	29.88%	19.89%	45.65%	55.19%
speedy 0.8.6	68.18%	81.11%	71.80%	90.64%	94.36%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.00%*	0.40%*	‡
alkahest 0.1.5	50.04%*	2.06%*	‡
capnp 0.18.3	1.41%*	21.92%*	‡
flatbuffers 23.5.26	44.95%* 0.00%*	8.16%* 0.01%*	‡
rkyv 0.7.42	100.00%* 0.00%*	100.00%* 0.02%*	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	640.76 µs	3.1375 ms*	2984682	1410641	1270491
alkahest 0.1.5	811.55 µs	†	1863391	1234113	1202345
bincode 1.3.3	3.4572 ms	5.5209 ms	1811011	1115281	1025627
bitcode 0.5.0	1.5527 ms	4.5092 ms	870693	866738	870720
borsh 1.1.1	2.6708 ms	3.5583 ms	1486162	1082357	1013550
bson 2.6.0	29.166 ms	62.123 ms	10030880	2833079	1600859
capnp 0.18.3	2.5692 ms	†	2664040	1511895	1212087
cbor4ii 0.3.1	5.2383 ms	25.885 ms	5878791	1655835	1431390
ciborium 0.2.1	22.100 ms	51.318 ms	5878653	1655791	1431560
databuf 0.5.0	1.9839 ms	4.9907 ms	1288257	1037579	984337
dlhn 0.1.6	5.6472 ms	10.914 ms	1279599	1052061	1021161
flatbuffers 23.5.26	5.4721 ms	†	2273740	1408408	1235566
msgpacker 0.4.3	2.6695 ms	7.5391 ms	1424043	1128758	1110156
nachricht-serde 0.4.0	45.566 ms	22.478 ms	1728519	1247642	1233323
nanoserde 0.1.35	1.2015 ms	4.3363 ms	1770477	1108304	1029947
parity-scale-codec 3.6.5	2.9293 ms	4.0699 ms	1288257	1039269	986510
postcard 1.0.8	2.2025 ms	5.4008 ms	1279599	1058243	1016738
pot 3.0.0	16.738 ms	35.907 ms	2544810	1447453	1268390
prost 0.12.1	5.0375 ms* 10.937 ms*	11.239 ms	1818378	1307777	1266311
rkyv 0.7.42	1.9010 ms	2.9242 ms* 3.8866 ms*	2029080	1335117	1158855
rmp-serde 1.1.2	10.987 ms	14.045 ms	1703813	1231892	1200208
ron 0.8.1	48.524 ms	123.29 ms	8476284	2181196	1783971
savefile 0.16.2	1.5209 ms	3.6079 ms	1750226	1101682	1027827
serde_bare 0.5.0	4.5105 ms	6.4840 ms	1288257	1037597	984356
serde_cbor 0.11.2	10.147 ms	28.100 ms	5878653	1655791	1431560
serde_json 1.0.108	24.693 ms	40.615 ms	9175594	2334253	1800713
simd-json 0.13.4	13.465 ms	37.567 ms	9175594	2334253	1800713
speedy 0.8.6	964.03 µs	3.2671 ms	1546963	1093532	1013443

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	115.68 µs*	116.33 µs*	‡
alkahest 0.1.5	2.4093 ns*	828.05 ns*	‡
capnp 0.18.3	85.736 ns*	1.1108 µs*	‡
flatbuffers 23.5.26	2.6805 ns* 5.0589 ms*	3.4385 µs* 5.0683 ms*	‡
rkyv 0.7.42	1.2058 ns* 884.78 µs*	424.16 ns* 887.13 µs*	816.33 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%	93.20%*	29.17%	61.44%	68.53%
alkahest 0.1.5	78.96%	†	46.73%	70.23%	72.42%
bincode 1.3.3	18.53%	52.97%	48.08%	77.71%	84.90%
bitcode 0.5.0	41.27%	64.85%	100.00%	100.00%	100.00%
borsh 1.1.1	23.99%	82.18%	58.59%	80.08%	85.91%
bson 2.6.0	2.20%	4.71%	8.68%	30.59%	54.39%
capnp 0.18.3	24.94%	†	32.68%	57.33%	71.84%
cbor4ii 0.3.1	12.23%	11.30%	14.81%	52.34%	60.83%
ciborium 0.2.1	2.90%	5.70%	14.81%	52.35%	60.82%
databuf 0.5.0	32.30%	58.59%	67.59%	83.53%	88.46%
dlhn 0.1.6	11.35%	26.79%	68.04%	82.38%	85.27%
flatbuffers 23.5.26	11.71%	†	38.29%	61.54%	70.47%
msgpacker 0.4.3	24.00%	38.79%	61.14%	76.79%	78.43%
nachricht-serde 0.4.0	1.41%	13.01%	50.37%	69.47%	70.60%
nanoserde 0.1.35	53.33%	67.44%	49.18%	78.20%	84.54%
parity-scale-codec 3.6.5	21.87%	71.85%	67.59%	83.40%	88.26%
postcard 1.0.8	29.09%	54.14%	68.04%	81.90%	85.64%
pot 3.0.0	3.83%	8.14%	34.21%	59.88%	68.65%
prost 0.12.1	12.72%* 5.86%*	26.02%	47.88%	66.28%	68.76%
rkyv 0.7.42	33.71%	100.00%* 75.24%*	42.91%	64.92%	75.14%
rmp-serde 1.1.2	5.83%	20.82%	51.10%	70.36%	72.55%
ron 0.8.1	1.32%	2.37%	10.27%	39.74%	48.81%
savefile 0.16.2	42.13%	81.05%	49.75%	78.67%	84.71%
serde_bare 0.5.0	14.21%	45.10%	67.59%	83.53%	88.46%
serde_cbor 0.11.2	6.31%	10.41%	14.81%	52.35%	60.82%
serde_json 1.0.108	2.59%	7.20%	9.49%	37.13%	48.35%
simd-json 0.13.4	4.76%	7.78%	9.49%	37.13%	48.35%
speedy 0.8.6	66.47%	89.50%	56.28%	79.26%	85.92%

Zero-copy deserialization speed

Crate	Access	Read	Update
abomonation 0.7.3	0.00%*	0.36%*	‡
alkahest 0.1.5	50.05%*	51.22%*	‡
capnp 0.18.3	1.41%*	38.19%*	‡
flatbuffers 23.5.26	44.98%* 0.00%*	12.34%* 0.01%*	‡
rkyv 0.7.42	100.00%* 0.00%*	100.00%* 0.05%*	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)