This project is a benchmark comparing FlatBuffers and ProtocolBuffer in Golang for serializing and grpc, also including FlatBuffers examples.
I used FlatBuffers builder pool to reduce memory usage and make it faster.
go test -bench=. -benchtime=5s -benchmemgoos: darwin
goarch: arm64
pkg: github.com/icefed/flatctest
BenchmarkSerial/0k/flatc/marshal-10 32386426 183.7 ns/op 344 B/op 3 allocs/op
BenchmarkSerial/0k/flatc/unmarshal-10 1000000000 0.09336 ns/op 0 B/op 0 allocs/op
BenchmarkSerial/0k/proto/marshal-10 36719302 163.0 ns/op 152 B/op 2 allocs/op
BenchmarkSerial/0k/proto/unmarshal-10 136989554 44.96 ns/op 144 B/op 4 allocs/op
BenchmarkSerial/4k/flatc/marshal-10 11720715 510.6 ns/op 8021.69 MB/s 4952 B/op 3 allocs/op
BenchmarkSerial/4k/flatc/unmarshal-10 1000000000 0.09285 ns/op 44113826.25 MB/s 0 B/op 0 allocs/op
BenchmarkSerial/4k/proto/marshal-10 11292236 531.7 ns/op 7704.30 MB/s 4992 B/op 2 allocs/op
BenchmarkSerial/4k/proto/unmarshal-10 8511976 711.7 ns/op 5755.01 MB/s 4240 B/op 5 allocs/op
BenchmarkSerial/64k/flatc/marshal-10 1713183 3497 ns/op 18740.08 MB/s 73816 B/op 3 allocs/op
BenchmarkSerial/64k/flatc/unmarshal-10 1000000000 0.09183 ns/op 713695376.05 MB/s 0 B/op 0 allocs/op
BenchmarkSerial/64k/proto/marshal-10 1724004 3538 ns/op 18523.45 MB/s 73856 B/op 2 allocs/op
BenchmarkSerial/64k/proto/unmarshal-10 1826797 3267 ns/op 20058.99 MB/s 65680 B/op 5 allocs/op
BenchmarkSerial/1m/flatc/marshal-10 209402 29682 ns/op 35326.96 MB/s 1056856 B/op 3 allocs/op
BenchmarkSerial/1m/flatc/unmarshal-10 1000000000 0.09219 ns/op 11374183234.74 MB/s 0 B/op 0 allocs/op
BenchmarkSerial/1m/proto/marshal-10 185460 32231 ns/op 32532.70 MB/s 1056896 B/op 2 allocs/op
BenchmarkSerial/1m/proto/unmarshal-10 195446 30848 ns/op 33991.33 MB/s 1048722 B/op 5 allocs/op
BenchmarkSerial/4m/flatc/marshal-10 84526 70602 ns/op 59407.96 MB/s 4202585 B/op 3 allocs/op
BenchmarkSerial/4m/flatc/unmarshal-10 1000000000 0.09704 ns/op 43221254577.56 MB/s 0 B/op 0 allocs/op
BenchmarkSerial/4m/proto/marshal-10 74522 82227 ns/op 51008.63 MB/s 4202625 B/op 2 allocs/op
BenchmarkSerial/4m/proto/unmarshal-10 74306 78487 ns/op 53439.47 MB/s 4194451 B/op 5 allocs/op
BenchmarkGRPC/0k/flatc/write-10 356440 16762 ns/op 9799 B/op 179 allocs/op
BenchmarkGRPC/0k/flatc/read-10 361366 16824 ns/op 9977 B/op 174 allocs/op
BenchmarkGRPC/0k/flatc/writestream-10 649605 9422 ns/op 1301 B/op 35 allocs/op
BenchmarkGRPC/0k/flatc/readstream-10 627028 9295 ns/op 1477 B/op 30 allocs/op
BenchmarkGRPC/0k/proto/write-10 370357 16043 ns/op 9134 B/op 164 allocs/op
BenchmarkGRPC/0k/proto/read-10 377991 16106 ns/op 9166 B/op 164 allocs/op
BenchmarkGRPC/0k/proto/writestream-10 684652 8664 ns/op 716 B/op 22 allocs/op
BenchmarkGRPC/0k/proto/readstream-10 684654 8763 ns/op 748 B/op 22 allocs/op
BenchmarkGRPC/4k/flatc/write-10 326216 18163 ns/op 225.52 MB/s 19384 B/op 180 allocs/op
BenchmarkGRPC/4k/flatc/read-10 314350 18859 ns/op 217.19 MB/s 24194 B/op 175 allocs/op
BenchmarkGRPC/4k/flatc/writestream-10 518239 11761 ns/op 348.28 MB/s 10862 B/op 37 allocs/op
BenchmarkGRPC/4k/flatc/readstream-10 491422 12158 ns/op 336.89 MB/s 15673 B/op 32 allocs/op
BenchmarkGRPC/4k/proto/write-10 322810 18590 ns/op 220.34 MB/s 23118 B/op 170 allocs/op
BenchmarkGRPC/4k/proto/read-10 330999 18381 ns/op 222.84 MB/s 23146 B/op 170 allocs/op
BenchmarkGRPC/4k/proto/writestream-10 506856 12021 ns/op 340.73 MB/s 14675 B/op 29 allocs/op
BenchmarkGRPC/4k/proto/readstream-10 498494 12206 ns/op 335.59 MB/s 14705 B/op 29 allocs/op
BenchmarkGRPC/64k/flatc/write-10 150900 40364 ns/op 1623.63 MB/s 159731 B/op 183 allocs/op
BenchmarkGRPC/64k/flatc/read-10 141702 43450 ns/op 1508.31 MB/s 234130 B/op 180 allocs/op
BenchmarkGRPC/64k/flatc/writestream-10 168550 35898 ns/op 1825.61 MB/s 151045 B/op 41 allocs/op
BenchmarkGRPC/64k/flatc/readstream-10 152575 39431 ns/op 1662.05 MB/s 225296 B/op 36 allocs/op
BenchmarkGRPC/64k/proto/write-10 135118 45533 ns/op 1439.31 MB/s 225703 B/op 174 allocs/op
BenchmarkGRPC/64k/proto/read-10 136824 43882 ns/op 1493.46 MB/s 225736 B/op 175 allocs/op
BenchmarkGRPC/64k/proto/writestream-10 152743 38901 ns/op 1684.68 MB/s 216906 B/op 33 allocs/op
BenchmarkGRPC/64k/proto/readstream-10 154670 40225 ns/op 1629.23 MB/s 216802 B/op 33 allocs/op
BenchmarkGRPC/1m/flatc/write-10 15668 372921 ns/op 2811.79 MB/s 2137121 B/op 209 allocs/op
BenchmarkGRPC/1m/flatc/read-10 16165 366897 ns/op 2857.95 MB/s 3195781 B/op 202 allocs/op
BenchmarkGRPC/1m/flatc/writestream-10 16540 360812 ns/op 2906.16 MB/s 2130089 B/op 65 allocs/op
BenchmarkGRPC/1m/flatc/readstream-10 16203 367039 ns/op 2856.85 MB/s 3194432 B/op 55 allocs/op
BenchmarkGRPC/1m/proto/write-10 15099 378915 ns/op 2767.31 MB/s 3196282 B/op 190 allocs/op
BenchmarkGRPC/1m/proto/read-10 14916 384893 ns/op 2724.33 MB/s 3192524 B/op 205 allocs/op
BenchmarkGRPC/1m/proto/writestream-10 17311 347154 ns/op 3020.49 MB/s 3197955 B/op 51 allocs/op
BenchmarkGRPC/1m/proto/readstream-10 16072 370094 ns/op 2833.27 MB/s 3187025 B/op 54 allocs/op
BenchmarkGRPC/4m/flatc/write-10 3906 1306072 ns/op 3211.39 MB/s 8436711 B/op 243 allocs/op
BenchmarkGRPC/4m/flatc/read-10 3913 1427557 ns/op 2938.10 MB/s 12635649 B/op 274 allocs/op
BenchmarkGRPC/4m/flatc/writestream-10 4426 1354595 ns/op 3096.35 MB/s 8425319 B/op 85 allocs/op
BenchmarkGRPC/4m/flatc/readstream-10 3776 1418248 ns/op 2957.38 MB/s 12635373 B/op 117 allocs/op
BenchmarkGRPC/4m/proto/write-10 3993 1415338 ns/op 2963.47 MB/s 12635738 B/op 235 allocs/op
BenchmarkGRPC/4m/proto/read-10 4076 1422215 ns/op 2949.14 MB/s 12635129 B/op 246 allocs/op
BenchmarkGRPC/4m/proto/writestream-10 4338 1270769 ns/op 3300.60 MB/s 12634890 B/op 78 allocs/op
BenchmarkGRPC/4m/proto/readstream-10 4341 1372446 ns/op 3056.08 MB/s 12631841 B/op 79 allocs/op
PASS
ok github.com/icefed/flatctest 385.807s