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Benchmarks for rust serialization frameworks

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
  • Zstd: the size of the buffer after zstd compression
  • Zstd Time: the time taken to compress the serialized buffer with zstd

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: 2024-7-8 3:16:38

Runtime info

rustc version

rustc 1.81.0-nightly (20ae37c18 2024-07-07)
binary: rustc
commit-hash: 20ae37c18df95f9246c019b04957d23b4164bf7a
commit-date: 2024-07-07
host: x86_64-unknown-linux-gnu
release: 1.81.0-nightly
LLVM version: 18.1.7

CPU info

Architecture:                       x86_64
CPU op-mode(s):                     32-bit, 64-bit
Address sizes:                      48 bits physical, 48 bits virtual
Byte Order:                         Little Endian
CPU(s):                             4
On-line CPU(s) list:                0-3
Vendor ID:                          AuthenticAMD
Model name:                         AMD EPYC 7763 64-Core Processor
CPU family:                         25
Model:                              1
Thread(s) per core:                 2
Core(s) per socket:                 2
Socket(s):                          1
Stepping:                           1
BogoMIPS:                           4890.86
Flags:                              fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl tsc_reliable nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy svm cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext invpcid_single vmmcall fsgsbase bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves clzero xsaveerptr rdpru arat npt nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold v_vmsave_vmload umip vaes vpclmulqdq rdpid fsrm
Virtualization:                     AMD-V
Hypervisor vendor:                  Microsoft
Virtualization type:                full
L1d cache:                          64 KiB (2 instances)
L1i cache:                          64 KiB (2 instances)
L2 cache:                           1 MiB (2 instances)
L3 cache:                           32 MiB (1 instance)
NUMA node(s):                       1
NUMA node0 CPU(s):                  0-3
Vulnerability Gather data sampling: Not affected
Vulnerability Itlb multihit:        Not affected
Vulnerability L1tf:                 Not affected
Vulnerability Mds:                  Not affected
Vulnerability Meltdown:             Not affected
Vulnerability Mmio stale data:      Not affected
Vulnerability Retbleed:             Not affected
Vulnerability Spec rstack overflow: Vulnerable: Safe RET, no microcode
Vulnerability Spec store bypass:    Vulnerable
Vulnerability Spectre v1:           Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:           Mitigation; Retpolines; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
Vulnerability Srbds:                Not affected
Vulnerability Tsx async abort:      Not affected

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 Zstd Time
abomonation 0.7.3 434.14 µs 1.4366 ms* 1705800 520079 413396 6.8097 ms
alkahest 0.1.5 202.86 µs 1045784 454157 389424 6.0510 ms
bilrost 0.1010.0 716.46 µs* 625.95 µs* 3.2681 ms 874632 355446 311723 5.0782 ms
bincode 2.0.0-rc 287.13 µs 2.6124 ms 741295 303944 257153 3.9479 ms
bincode 1.3.3 519.88 µs 2.3828 ms 1045784 373127 311761 4.8703 ms
bitcode 0.6.0 144.08 µs 1.5421 ms 703710 288826 229755 2.4237 ms
borsh 1.5.1 542.96 µs 2.2365 ms 885780 362204 286514 4.1982 ms
bson 2.9.0 2.0519 ms 7.8208 ms 1924682 532821 376270 5.6268 ms
capnp 0.19.6 526.93 µs 1443216 513986 428649 6.3817 ms
cbor4ii 0.3.2 595.47 µs 4.9230 ms 1407835 403440 324081 4.8287 ms
ciborium 0.2.2 3.2282 ms 11.988 ms 1407835 403440 324081 4.8582 ms
databuf 0.5.0 261.01 µs 2.1137 ms 765778 311715 264630 3.8404 ms
dlhn 0.1.7 803.81 µs 2.5559 ms 724953 301446 253629 3.5427 ms
flatbuffers 24.3.25 1.0168 ms 1276368 468539 388832 5.1337 ms
msgpacker 0.4.3 1.2438 ms 2.6380 ms 764996 315291 264898 3.9196 ms
nachricht-serde 0.4.0 5.6028 ms 4.4148 ms 818669 332556 285514 4.6435 ms
nanoserde 0.1.37 241.59 µs 2.1442 ms 1045784 373127 311761 4.8473 ms
parity-scale-codec 3.6.12 649.57 µs 2.2948 ms 765778 311743 264518 3.8366 ms
postcard 1.0.8 415.86 µs 2.2995 ms 724953 302399 253747 3.6047 ms
pot 3.0.0 2.1502 ms 6.5262 ms 971922 372513 304122 4.9410 ms
prost 0.12.6 964.10 µs* 2.4942 ms* 3.1931 ms 884628 363130 315494 4.8164 ms
rkyv 0.7.44 222.01 µs 1.4525 ms* 1.9868 ms* 1011488 383862 333545 4.9174 ms
rmp-serde 1.3.0 1.3835 ms 3.2098 ms 784997 325384 278219 4.1658 ms
ron 0.8.1 12.716 ms 15.757 ms 1607459 449158 349713 6.1199 ms
savefile 0.17.6 188.40 µs 2.2075 ms 1045800 373140 311777 4.8180 ms
serde_bare 0.5.0 672.29 µs 2.2422 ms 765778 311715 264630 4.1144 ms
serde_cbor 0.11.2 2.0338 ms 4.8280 ms 1407835 403440 324081 5.0587 ms
serde_json 1.0.120 4.0039 ms 5.7836 ms 1827461 470560 361090 6.0894 ms
simd-json 0.13.10 2.0645 ms 4.6941 ms 1827461 470560 361090 5.6429 ms
speedy 0.8.7 201.09 µs 1.7693 ms 885780 362204 286514 4.2094 ms

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 22.293 µs* 38.143 µs*
alkahest 0.1.5 1.8555 ns* 24.904 µs*
capnp 0.19.6 73.579 ns* 166.99 µs*
flatbuffers 24.3.25 2.4729 ns* 2.0396 ms* 50.668 µs* 2.0518 ms*
rkyv 0.7.44 1.2376 ns* 524.37 µs* 10.847 µs* 534.73 µs* 9.8159 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate Serialize Deserialize Size Zlib Zstd Zstd Time
abomonation 0.7.3 33.19% 100.00%* 41.25% 55.54% 55.58% 35.59%
alkahest 0.1.5 71.02% 67.29% 63.60% 59.00% 40.05%
bilrost 0.1010.0 20.11%* 23.02%* 43.96% 80.46% 81.26% 73.70% 47.73%
bincode 2.0.0-rc 50.18% 54.99% 94.93% 95.03% 89.35% 61.39%
bincode 1.3.3 27.71% 60.29% 67.29% 77.41% 73.70% 49.76%
bitcode 0.6.0 100.00% 93.16% 100.00% 100.00% 100.00% 100.00%
borsh 1.5.1 26.54% 64.23% 79.45% 79.74% 80.19% 57.73%
bson 2.9.0 7.02% 18.37% 36.56% 54.21% 61.06% 43.07%
capnp 0.19.6 27.34% 48.76% 56.19% 53.60% 37.98%
cbor4ii 0.3.2 24.20% 29.18% 49.99% 71.59% 70.89% 50.19%
ciborium 0.2.2 4.46% 11.98% 49.99% 71.59% 70.89% 49.89%
databuf 0.5.0 55.20% 67.97% 91.89% 92.66% 86.82% 63.11%
dlhn 0.1.7 17.92% 56.21% 97.07% 95.81% 90.59% 68.41%
flatbuffers 24.3.25 14.17% 55.13% 61.64% 59.09% 47.21%
msgpacker 0.4.3 11.58% 54.46% 91.99% 91.61% 86.73% 61.84%
nachricht-serde 0.4.0 2.57% 32.54% 85.96% 86.85% 80.47% 52.20%
nanoserde 0.1.37 59.64% 67.00% 67.29% 77.41% 73.70% 50.00%
parity-scale-codec 3.6.12 22.18% 62.60% 91.89% 92.65% 86.86% 63.17%
postcard 1.0.8 34.65% 62.47% 97.07% 95.51% 90.54% 67.24%
pot 3.0.0 6.70% 22.01% 72.40% 77.53% 75.55% 49.05%
prost 0.12.6 14.94%* 5.78%* 44.99% 79.55% 79.54% 72.82% 50.32%
rkyv 0.7.44 64.90% 98.91%* 72.31%* 69.57% 75.24% 68.88% 49.29%
rmp-serde 1.3.0 10.41% 44.76% 89.64% 88.76% 82.58% 58.18%
ron 0.8.1 1.13% 9.12% 43.78% 64.30% 65.70% 39.60%
savefile 0.17.6 76.48% 65.08% 67.29% 77.40% 73.69% 50.31%
serde_bare 0.5.0 21.43% 64.07% 91.89% 92.66% 86.82% 58.91%
serde_cbor 0.11.2 7.08% 29.76% 49.99% 71.59% 70.89% 47.91%
serde_json 1.0.120 3.60% 24.84% 38.51% 61.38% 63.63% 39.80%
simd-json 0.13.10 6.98% 30.60% 38.51% 61.38% 63.63% 42.95%
speedy 0.8.7 71.65% 81.20% 79.45% 79.74% 80.19% 57.58%

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 0.01%* 28.44%*
alkahest 0.1.5 66.70%* 43.56%*
capnp 0.19.6 1.68%* 6.50%*
flatbuffers 24.3.25 50.05%* 0.00%* 21.41%* 0.53%*
rkyv 0.7.44 100.00%* 0.00%* 100.00%* 2.03%* 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 Zstd Time
abomonation 0.7.3 239.11 µs 238.74 µs* 6000024 5378513 5345890 7.6023 ms
alkahest 0.1.5 200.68 µs 6000008 5378500 5345890 7.8514 ms
bilrost 0.1010.0 6.6183 ms* 8.7040 ms* 10.100 ms 8625005 6443961 6231572 74.066 ms
bincode 2.0.0-rc 503.31 µs 822.27 µs 6000005 5378497 5345897 7.7747 ms
bincode 1.3.3 5.6653 ms 4.3926 ms 6000008 5378500 5345890 7.7793 ms
bitcode 0.6.0 1.4249 ms 619.27 µs 6000006 5182295 4923880 12.948 ms
borsh 1.5.1 6.3580 ms 4.6019 ms 6000004 5378496 5345889 8.1388 ms
bson 2.9.0 46.097 ms 90.327 ms 23013911 9212089 7497811 108.73 ms
capnp 0.19.6 5.5832 ms 14000088 7130367 6051062 79.834 ms
cbor4ii 0.3.2 9.2010 ms 48.145 ms 13125016 7524114 6757967 90.332 ms
ciborium 0.2.2 68.843 ms 120.76 ms 13122324 7524660 6759658 89.597 ms
databuf 0.5.0 2.3963 ms 5.2529 ms 6000003 5378495 5345900 8.2325 ms
dlhn 0.1.7 7.6165 ms 6.7680 ms 6000003 5378495 5345900 8.0464 ms
flatbuffers 24.3.25 881.27 µs 6000024 5378434 5345910 7.5243 ms
msgpacker 0.4.3 19.356 ms 5.2501 ms 7500005 6058442 6014337 9.6496 ms
nachricht-serde 0.4.0 122.29 ms 32.317 ms 8125037 6493484 6386940 70.192 ms
nanoserde 0.1.37 1.9001 ms 1.0938 ms 6000008 5378500 5345890 7.5260 ms
parity-scale-codec 3.6.12 5.0924 ms 4.0605 ms 6000004 5378496 5345889 7.7805 ms
postcard 1.0.8 477.82 µs 1.8014 ms 6000003 5378495 5345900 7.9155 ms
pot 3.0.0 37.108 ms 72.991 ms 10122342 6814618 6852251 79.478 ms
prost 0.12.6 7.6854 ms* 8.7502 ms* 13.691 ms 8750000 6665735 6421871 70.537 ms
rkyv 0.7.44 186.82 µs 148.82 µs* 165.50 µs* 6000008 5378500 5345892 7.9358 ms
rmp-serde 1.3.0 15.359 ms 17.985 ms 8125006 6494876 6391037 68.425 ms
ron 0.8.1 171.43 ms 245.25 ms 22192885 8970395 8138755 147.36 ms
savefile 0.17.6 238.73 µs 239.06 µs 6000024 5378513 5345893 7.8431 ms
serde_bare 0.5.0 6.5230 ms 4.1797 ms 6000003 5378495 5345900 7.6281 ms
serde_cbor 0.11.2 36.644 ms 48.459 ms 13122324 7524660 6759658 89.129 ms
serde_json 1.0.120 88.188 ms 83.345 ms 26192883 9566084 8586741 152.73 ms
simd-json 0.13.10 53.102 ms 72.679 ms 26192883 9566084 8586741 153.34 ms
speedy 0.8.7 238.18 µs 238.59 µs 6000004 5378496 5345889 7.8512 ms

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 2.1649 ns* 141.46 µs*
alkahest 0.1.5 1.8552 ns* 77.328 µs*
capnp 0.19.6 104.34 ns* 2.1397 ms*
flatbuffers 24.3.25 2.4736 ns* 40.029 ns* 77.390 µs* 77.427 µs*
rkyv 0.7.44 1.2368 ns* 8.9869 ns* 48.445 µs* 77.440 µs* 97.271 µs

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate Serialize Deserialize Size Zlib Zstd Zstd Time
abomonation 0.7.3 78.13% 62.34%* 100.00% 96.35% 92.11% 98.97%
alkahest 0.1.5 93.09% 100.00% 96.35% 92.11% 95.83%
bilrost 0.1010.0 2.82%* 2.15%* 1.47% 69.57% 80.42% 79.02% 10.16%
bincode 2.0.0-rc 37.12% 18.10% 100.00% 96.35% 92.11% 96.78%
bincode 1.3.3 3.30% 3.39% 100.00% 96.35% 92.11% 96.72%
bitcode 0.6.0 13.11% 24.03% 100.00% 100.00% 100.00% 58.11%
borsh 1.5.1 2.94% 3.23% 100.00% 96.35% 92.11% 92.45%
bson 2.9.0 0.41% 0.16% 26.07% 56.26% 65.67% 6.92%
capnp 0.19.6 3.35% 42.86% 72.68% 81.37% 9.42%
cbor4ii 0.3.2 2.03% 0.31% 45.71% 68.88% 72.86% 8.33%
ciborium 0.2.2 0.27% 0.12% 45.72% 68.87% 72.84% 8.40%
databuf 0.5.0 7.80% 2.83% 100.00% 96.35% 92.11% 91.40%
dlhn 0.1.7 2.45% 2.20% 100.00% 96.35% 92.11% 93.51%
flatbuffers 24.3.25 21.20% 100.00% 96.35% 92.11% 100.00%
msgpacker 0.4.3 0.97% 2.83% 80.00% 85.54% 81.87% 77.98%
nachricht-serde 0.4.0 0.15% 0.46% 73.85% 79.81% 77.09% 10.72%
nanoserde 0.1.37 9.83% 13.61% 100.00% 96.35% 92.11% 99.98%
parity-scale-codec 3.6.12 3.67% 3.67% 100.00% 96.35% 92.11% 96.71%
postcard 1.0.8 39.10% 8.26% 100.00% 96.35% 92.11% 95.06%
pot 3.0.0 0.50% 0.20% 59.27% 76.05% 71.86% 9.47%
prost 0.12.6 2.43%* 2.14%* 1.09% 68.57% 77.75% 76.67% 10.67%
rkyv 0.7.44 100.00% 100.00%* 89.92%* 100.00% 96.35% 92.11% 94.81%
rmp-serde 1.3.0 1.22% 0.83% 73.85% 79.79% 77.04% 11.00%
ron 0.8.1 0.11% 0.06% 27.04% 57.77% 60.50% 5.11%
savefile 0.17.6 78.26% 62.25% 100.00% 96.35% 92.11% 95.94%
serde_bare 0.5.0 2.86% 3.56% 100.00% 96.35% 92.11% 98.64%
serde_cbor 0.11.2 0.51% 0.31% 45.72% 68.87% 72.84% 8.44%
serde_json 1.0.120 0.21% 0.18% 22.91% 54.17% 57.34% 4.93%
simd-json 0.13.10 0.35% 0.20% 22.91% 54.17% 57.34% 4.91%
speedy 0.8.7 78.44% 62.37% 100.00% 96.35% 92.11% 95.84%

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 57.13%* 34.25%*
alkahest 0.1.5 66.67%* 62.65%*
capnp 0.19.6 1.19%* 2.26%*
flatbuffers 24.3.25 50.00%* 3.09%* 62.60%* 62.57%*
rkyv 0.7.44 100.00%* 13.76%* 100.00%* 62.56%* 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 Zstd Time
abomonation 0.7.3 192.68 µs 1.2985 ms* 1290592 399761 340930 4.9714 ms
alkahest 0.1.5 216.81 µs 667570 325484 320452 3.9254 ms
bilrost 0.1010.0 900.52 µs* 840.03 µs* 3.2107 ms 489348 281173 249546 3.0735 ms
bincode 2.0.0-rc 310.77 µs 2.0969 ms 367413 221291 206273 2.4877 ms
bincode 1.3.3 598.35 µs 1.9248 ms 569975 240525 232423 2.8873 ms
bitcode 0.6.0 132.65 µs 1.2689 ms 327688 200947 182736 738.98 µs
borsh 1.5.1 553.33 µs 1.8453 ms 446595 234236 210008 2.4839 ms
bson 2.9.0 2.8203 ms 9.0222 ms 1619653 502185 328399 4.8198 ms
capnp 0.19.6 455.79 µs 803896 335606 280851 3.9561 ms
cbor4ii 0.3.2 779.76 µs 4.7928 ms 1109831 344745 274514 3.8554 ms
ciborium 0.2.2 3.8547 ms 10.277 ms 1109821 344751 274526 3.8443 ms
databuf 0.5.0 292.32 µs 1.7500 ms 356311 213062 198488 2.3976 ms
dlhn 0.1.7 804.57 µs 2.6899 ms 366496 220600 205683 2.4766 ms
flatbuffers 24.3.25 2.9070 ms 844168 345696 294015 3.8419 ms
msgpacker 0.4.3 923.56 µs 2.8534 ms 391251 236877 220476 2.6196 ms
nachricht-serde 0.4.0 5.2602 ms 4.0586 ms 449745 252432 231110 2.7765 ms
nanoserde 0.1.37 271.88 µs 1.9206 ms 567975 239930 232419 2.9329 ms
parity-scale-codec 3.6.12 613.13 µs 1.9811 ms 356311 212976 198524 2.3648 ms
postcard 1.0.8 444.20 µs 2.0769 ms 367489 221913 207344 2.5133 ms
pot 3.0.0 2.2972 ms 5.9702 ms 599125 299158 247693 3.1948 ms
prost 0.12.6 1.2668 ms* 2.9230 ms* 3.3382 ms 596811 305319 269310 3.4671 ms
rkyv 0.7.44 303.39 µs 1.2649 ms* 1.7357 ms* 596952 253967 220706 2.6824 ms
rmp-serde 1.3.0 1.4084 ms 3.0402 ms 424533 245214 226188 2.6871 ms
ron 0.8.1 7.4113 ms 17.944 ms 1465223 434935 343338 5.9539 ms
savefile 0.17.6 206.01 µs 1.8631 ms 566991 239361 232013 2.8898 ms
serde_bare 0.5.0 739.61 µs 2.3402 ms 356311 213062 198488 2.3829 ms
serde_cbor 0.11.2 1.8008 ms 4.6486 ms 1109821 344751 274526 3.8293 ms
serde_json 1.0.120 3.8422 ms 6.7736 ms 1623191 466527 359623 6.0275 ms
simd-json 0.13.10 2.2192 ms 5.0468 ms 1623191 466527 359623 6.0322 ms
speedy 0.8.7 290.49 µs 1.5960 ms 449595 234970 210361 2.4620 ms

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 36.822 µs* 37.385 µs*
alkahest 0.1.5 1.8553 ns* 7.1969 µs*
capnp 0.19.6 73.582 ns* 417.73 ns*
flatbuffers 24.3.25 2.4735 ns* 2.2113 ms* 1.3494 µs* 2.1913 ms*
rkyv 0.7.44 1.2375 ns* 465.06 µs* 239.01 ns* 471.05 µs* 929.68 ns

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate Serialize Deserialize Size Zlib Zstd Zstd Time
abomonation 0.7.3 68.84% 97.41%* 25.39% 50.27% 53.60% 14.86%
alkahest 0.1.5 61.18% 49.09% 61.74% 57.02% 18.83%
bilrost 0.1010.0 14.73%* 15.79%* 39.40% 66.96% 71.47% 73.23% 24.04%
bincode 2.0.0-rc 42.68% 60.32% 89.19% 90.81% 88.59% 29.71%
bincode 1.3.3 22.17% 65.72% 57.49% 83.55% 78.62% 25.59%
bitcode 0.6.0 100.00% 99.68% 100.00% 100.00% 100.00% 100.00%
borsh 1.5.1 23.97% 68.55% 73.37% 85.79% 87.01% 29.75%
bson 2.9.0 4.70% 14.02% 20.23% 40.01% 55.64% 15.33%
capnp 0.19.6 29.10% 40.76% 59.88% 65.07% 18.68%
cbor4ii 0.3.2 17.01% 26.39% 29.53% 58.29% 66.57% 19.17%
ciborium 0.2.2 3.44% 12.31% 29.53% 58.29% 66.56% 19.22%
databuf 0.5.0 45.38% 72.28% 91.97% 94.31% 92.06% 30.82%
dlhn 0.1.7 16.49% 47.02% 89.41% 91.09% 88.84% 29.84%
flatbuffers 24.3.25 4.56% 38.82% 58.13% 62.15% 19.23%
msgpacker 0.4.3 14.36% 44.33% 83.75% 84.83% 82.88% 28.21%
nachricht-serde 0.4.0 2.52% 31.17% 72.86% 79.60% 79.07% 26.62%
nanoserde 0.1.37 48.79% 65.86% 57.69% 83.75% 78.62% 25.20%
parity-scale-codec 3.6.12 21.63% 63.85% 91.97% 94.35% 92.05% 31.25%
postcard 1.0.8 29.86% 60.90% 89.17% 90.55% 88.13% 29.40%
pot 3.0.0 5.77% 21.19% 54.69% 67.17% 73.78% 23.13%
prost 0.12.6 10.47%* 4.54%* 37.89% 54.91% 65.82% 67.85% 21.31%
rkyv 0.7.44 43.72% 100.00%* 72.88%* 54.89% 79.12% 82.80% 27.55%
rmp-serde 1.3.0 9.42% 41.61% 77.19% 81.95% 80.79% 27.50%
ron 0.8.1 1.79% 7.05% 22.36% 46.20% 53.22% 12.41%
savefile 0.17.6 64.39% 67.89% 57.79% 83.95% 78.76% 25.57%
serde_bare 0.5.0 17.94% 54.05% 91.97% 94.31% 92.06% 31.01%
serde_cbor 0.11.2 7.37% 27.21% 29.53% 58.29% 66.56% 19.30%
serde_json 1.0.120 3.45% 18.67% 20.19% 43.07% 50.81% 12.26%
simd-json 0.13.10 5.98% 25.06% 20.19% 43.07% 50.81% 12.25%
speedy 0.8.7 45.66% 79.25% 72.89% 85.52% 86.87% 30.02%

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 0.00%* 0.64%*
alkahest 0.1.5 66.70%* 3.32%*
capnp 0.19.6 1.68%* 57.22%*
flatbuffers 24.3.25 50.03%* 0.00%* 17.71%* 0.01%*
rkyv 0.7.44 100.00%* 0.00%* 100.00%* 0.05%* 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 Zstd Time
abomonation 0.7.3 492.07 µs 2.3383 ms* 2984682 1411704 1273124 14.157 ms
alkahest 0.1.5 588.78 µs 1863391 1234113 1202345 11.425 ms
bilrost 0.1010.0 4.6577 ms* 2.4662 ms* 8.3904 ms 1664428 1264167 1216472 10.944 ms
bincode 2.0.0-rc 708.74 µs 3.7965 ms 1372381 1091486 1037296 9.0813 ms
bincode 1.3.3 3.8671 ms 4.0861 ms 1811011 1115281 1025627 9.7617 ms
bitcode 0.6.0 696.47 µs 2.3319 ms 948499 857321 837658 3.0511 ms
borsh 1.5.1 2.8685 ms 2.8502 ms 1486162 1082357 1013550 9.4947 ms
bson 2.9.0 20.647 ms 49.556 ms 10030880 2833079 1600859 27.066 ms
capnp 0.19.6 2.1816 ms 2664040 1511895 1212087 14.023 ms
cbor4ii 0.3.2 3.2306 ms 17.635 ms 5878791 1655835 1431390 20.521 ms
ciborium 0.2.2 24.051 ms 53.558 ms 5878653 1655791 1431560 20.500 ms
databuf 0.5.0 1.3338 ms 3.7006 ms 1288257 1037579 984337 8.6223 ms
dlhn 0.1.7 5.2124 ms 7.8215 ms 1279599 1052061 1021161 8.3538 ms
flatbuffers 24.3.25 4.8597 ms 2273740 1408408 1235566 12.493 ms
msgpacker 0.4.3 2.1711 ms 6.4614 ms 1424043 1128758 1110156 9.1858 ms
nachricht-serde 0.4.0 30.415 ms 16.870 ms 1728519 1247642 1233323 12.846 ms
nanoserde 0.1.37 1.3459 ms 3.2129 ms 1770477 1108304 1029947 9.8676 ms
parity-scale-codec 3.6.12 2.9905 ms 3.3989 ms 1288257 1039269 986510 8.5516 ms
postcard 1.0.8 2.0479 ms 4.1207 ms 1279599 1058243 1016738 8.3156 ms
pot 3.0.0 13.197 ms 30.120 ms 2544810 1447453 1268390 15.347 ms
prost 0.12.6 5.3722 ms* 9.3295 ms* 8.4705 ms 1818378 1307777 1266311 11.614 ms
rkyv 0.7.44 1.3056 ms 2.1493 ms* 2.6992 ms* 2029080 1335117 1158855 11.901 ms
rmp-serde 1.3.0 9.7094 ms 10.691 ms 1703813 1231892 1200208 10.888 ms
ron 0.8.1 36.868 ms 92.943 ms 8476284 2181196 1783971 34.131 ms
savefile 0.17.6 807.23 µs 2.8231 ms 1750226 1101682 1027828 9.8000 ms
serde_bare 0.5.0 4.7733 ms 4.6999 ms 1288257 1037597 984356 8.5785 ms
serde_cbor 0.11.2 9.6768 ms 21.218 ms 5878653 1655791 1431560 20.996 ms
serde_json 1.0.120 20.107 ms 30.136 ms 9175594 2334253 1800713 33.732 ms
simd-json 0.13.10 11.536 ms 26.526 ms 9175594 2334253 1800713 35.374 ms
speedy 0.8.7 714.55 µs 2.4314 ms 1546963 1093532 1013443 9.9529 ms

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 66.318 µs* 67.137 µs*
alkahest 0.1.5 1.8559 ns* 627.01 ns*
capnp 0.19.6 72.806 ns* 707.06 ns*
flatbuffers 24.3.25 2.4731 ns* 4.6959 ms* 2.6292 µs* 4.8402 ms*
rkyv 0.7.44 1.2374 ns* 533.97 µs* 373.77 ns* 531.62 µs* 502.99 ns

Comparison

Relative to best. Higher is better.

Serialize / deserialize speed and size

Crate Serialize Deserialize Size Zlib Zstd Zstd Time
abomonation 0.7.3 100.00% 91.92%* 31.78% 60.73% 65.80% 21.55%
alkahest 0.1.5 83.57% 50.90% 69.47% 69.67% 26.71%
bilrost 0.1010.0 10.56%* 19.95%* 25.62% 56.99% 67.82% 68.86% 27.88%
bincode 2.0.0-rc 69.43% 56.61% 69.11% 78.55% 80.75% 33.60%
bincode 1.3.3 12.72% 52.60% 52.37% 76.87% 81.67% 31.26%
bitcode 0.6.0 70.65% 92.17% 100.00% 100.00% 100.00% 100.00%
borsh 1.5.1 17.15% 75.41% 63.82% 79.21% 82.65% 32.13%
bson 2.9.0 2.38% 4.34% 9.46% 30.26% 52.33% 11.27%
capnp 0.19.6 22.56% 35.60% 56.71% 69.11% 21.76%
cbor4ii 0.3.2 15.23% 12.19% 16.13% 51.78% 58.52% 14.87%
ciborium 0.2.2 2.05% 4.01% 16.13% 51.78% 58.51% 14.88%
databuf 0.5.0 36.89% 58.08% 73.63% 82.63% 85.10% 35.39%
dlhn 0.1.7 9.44% 27.48% 74.12% 81.49% 82.03% 36.52%
flatbuffers 24.3.25 10.13% 41.72% 60.87% 67.80% 24.42%
msgpacker 0.4.3 22.66% 33.26% 66.61% 75.95% 75.45% 33.22%
nachricht-serde 0.4.0 1.62% 12.74% 54.87% 68.72% 67.92% 23.75%
nanoserde 0.1.37 36.56% 66.90% 53.57% 77.35% 81.33% 30.92%
parity-scale-codec 3.6.12 16.45% 63.24% 73.63% 82.49% 84.91% 35.68%
postcard 1.0.8 24.03% 52.16% 74.12% 81.01% 82.39% 36.69%
pot 3.0.0 3.73% 7.14% 37.27% 59.23% 66.04% 19.88%
prost 0.12.6 9.16%* 5.27%* 25.37% 52.16% 65.56% 66.15% 26.27%
rkyv 0.7.44 37.69% 100.00%* 79.63%* 46.75% 64.21% 72.28% 25.64%
rmp-serde 1.3.0 5.07% 20.10% 55.67% 69.59% 69.79% 28.02%
ron 0.8.1 1.33% 2.31% 11.19% 39.31% 46.95% 8.94%
savefile 0.17.6 60.96% 76.13% 54.19% 77.82% 81.50% 31.13%
serde_bare 0.5.0 10.31% 45.73% 73.63% 82.63% 85.10% 35.57%
serde_cbor 0.11.2 5.09% 10.13% 16.13% 51.78% 58.51% 14.53%
serde_json 1.0.120 2.45% 7.13% 10.34% 36.73% 46.52% 9.05%
simd-json 0.13.10 4.27% 8.10% 10.34% 36.73% 46.52% 8.63%
speedy 0.8.7 68.86% 88.40% 61.31% 78.40% 82.65% 30.66%

Zero-copy deserialization speed

Crate Access Read Update
abomonation 0.7.3 0.00%* 0.56%*
alkahest 0.1.5 66.67%* 59.61%*
capnp 0.19.6 1.70%* 52.86%*
flatbuffers 24.3.25 50.03%* 0.00%* 14.22%* 0.01%*
rkyv 0.7.44 100.00%* 0.00%* 100.00%* 0.07%* 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)