Scala 3 Json

Feature tests and performance benchmarks against 6 Scala 3 json libraries:

1. Circe
2. Jsoniter
3. uPickle
4. Zio-Json
5. Spray-Json ( readded on 2022.12.4 )
6. Borer ( readded 2023.11.26 )

Note, Spray-Json does not provide a type discriminator!

Test

1. sbt clean test

Benchmark

See objektwerks.Performance class for details.

1. sbt jmh:run

Results

OpenJDK Runtime Environment Zulu22.30+13-CA (build 22.0.1+8), Scala 3.5.0-RC4, Apple M1, 2020, 16GB

1. spray-json - 0.051
2. jsoniter - 0.127
3. circe - 0.182
4. borer - 0.194
5. zio-json - 0.245
6. upickle - 0.424 ( upgrade to 4.0.0 yields a time of: 0.423 [2024.7.23] )

Total time: 1206 s (20:06), 10 warmups, 10 iterations, average time in microseconds, completed 2024.7.16

OpenJDK Runtime Environment Zulu21.30+15-CA (build 21.0.1+12-LTS), Scala 3.3.1, Apple M1, 2020, 16GB

1. spray-json - 0.062
2. jsoniter - 0.143
3. circe - 0.165
4. borer - 0.194
5. zio-json - 0.264
6. upickle - 0.458

Total time: 1203 s (20:03), 10 warmups, 10 iterations, average time in microseconds, completed 2023.11.26

OpenJDK Runtime Environment Zulu21.28+85-CA (build 21+35), Scala 3.3.1, Apple M1, 2020, 16GB

1. spray-json - 0.062
2. jsoniter - 0.143
3. circe - 0.175
4. zio-json - 0.264
5. upickle - 0.467

Total time: 1003 s (16:43), 10 warmups, 10 iterations, average time in microseconds, completed 2023.9.20

OpenJDK Runtime Environment Zulu20.30+11-CA (build 20.0.1+9), Scala 3.3.0, Apple M1, 2020, 16GB

1. spray-json - 0.068
2. jsoniter - 0.139
3. circe - 0.174
4. zio-json - 0.330
5. upickle - 0.406

Total time: 1003 s (16:43), 10 warmups, 10 iterations, average time in microseconds, completed 2023.7.29

OpenJDK Runtime Environment Zulu20.28+85-CA (build 20+36), Scala 3.2.2, Apple M1, 2020, 16GB

1. spray-json - 0.069
2. jsoniter - 0.123
3. circe - 0.137
4. zio-json - 0.271
5. upickle - 0.393

Total time: 1003 s (16:43), 10 warmups, 10 iterations, average time in microseconds, completed 2023.3.25

OpenJDK Runtime Environment Zulu19.30+11-CA (build 19.0.1+10), Scala 3.2.1, Apple M1, 2020, 16GB

1. spray-json - 0.067
2. jsoniter - 0.114
3. circe - 0.177
4. zio-json - 0.365
5. upickle - 0.929

Total time: 1003 s (16:43), 10 warmups, 10 iterations, average time in microseconds, completed 2023.1.10

OpenJDK Runtime Environment Zulu19.28+81-CA (build 19+36), Scala 3.2.1-RC2, Apple M1, 2020, 16GB

1. jsoniter - 0.108
2. circe - 0.181
3. zio-json - 0.372
4. upickle - 0.943

Total time: 803 s (13:23), 10 warmups, 10 iterations, average time in microseconds, completed 2022.10.8

OpenJDK Runtime Environment Zulu18.30+11-CA (build 18.0.1+10), Scala 3.2.0-RC2, Apple M1, 2020, 16GB

1. jsoniter - 0.122
2. circe - 0.180
3. zio-json - 0.329
4. upickle - 1.003

Total time: 803 s (13:23), 10 warmups, 10 iterations, average time in microseconds, completed 2022.7.27

OpenJDK Runtime Environment Zulu17.30+51-CA (build 17.0.1+12-LTS), Scala 2.13.7, Apple M1, 2020, 16GB

1. spray-json - 0.071
2. jsoniter - 0.126
3. borer - 0.138
4. circe - 0.164
5. upickle - 0.353
6. zio-json - 0.380
7. play-json - 1.250

Total time: 1405s (23:25), 10 warmups, 10 iterations, average time in microseconds, completed 2021.12.12