Original benchmark - https://github.com/okuramasafumi/alba/tree/main/benchmark

Benchmark for json serializers

This directory contains a few different benchmark scripts. They all use inline Bundler definitions so you can run them by ruby benchmark/collection.rb for instance.

Result

As a reference, here's the benchmark result run in my (@okuramasafumi) machine.

Machine spec:

Key	Value
OS	macOS 13.4
CPU	Intel 2,6 GHz 6-Core Intel Core i7
RAM	16GB
Ruby	ruby 2.7.7p221 (2022-11-24 revision 168ec2b1e5) [x86_64-darwin22]

Library versions:

Library	Version
alba	2.2.0
blueprinter	0.25.3
jserializer	0.2.1
oj	3.14.2
simple_ams	0.2.6
representable	3.2.0
turbostreamer	1.10.0
jbuilder	2.11.5
panko_serializer	0.7.9
active_model_serializers	0.9.7
jsonapi-serializer	2.2.0

active_model_serializers 0.9.7:

benchmark-ips

Comparison:
               panko:      276.9 i/s
       turbostreamer:      101.2 i/s - 2.74x  slower
                alba:       97.5 i/s - 2.84x  slower
         alba_inline:       97.0 i/s - 2.85x  slower
         jserializer:       78.9 i/s - 3.51x  slower
               rails:       76.2 i/s - 3.63x  slower
                 ams:       56.2 i/s - 4.93x  slower
         blueprinter:       43.7 i/s - 6.34x  slower
            json_api:       40.7 i/s - 6.80x  slower
       representable:       32.6 i/s - 8.49x  slower
          simple_ams:       26.5 i/s - 10.43x  slower

benchmark-memory:

Comparison:
               panko:     318418 allocated
       turbostreamer:     869008 allocated - 2.73x more
         jserializer:    1078105 allocated - 3.39x more
                alba:    1087273 allocated - 3.41x more
         alba_inline:    1102273 allocated - 3.46x more
         blueprinter:    1950537 allocated - 6.13x more
               rails:    2513561 allocated - 7.89x more
                 ams:    2774961 allocated - 8.71x more
            json_api:    2912857 allocated - 9.15x more
       representable:    3437158 allocated - 10.79x more
          simple_ams:    7291417 allocated - 22.90x more

active_model_serializers 0.10.13:

benchmark-ips

Comparison:
               panko:      171.9 i/s
                alba:      101.1 i/s - 1.70x  slower
       turbostreamer:       99.7 i/s - 1.72x  slower
         alba_inline:       94.8 i/s - 1.81x  slower
         jserializer:       72.4 i/s - 2.37x  slower
               rails:       59.9 i/s - 2.87x  slower
         blueprinter:       42.0 i/s - 4.09x  slower
            json_api:       31.5 i/s - 5.46x  slower
       representable:       27.2 i/s - 6.31x  slower
          simple_ams:       26.0 i/s - 6.60x  slower
                 ams:        9.1 i/s - 18.89x  slower

benchmark-memory:

Comparison:
               panko:     318418 allocated
       turbostreamer:     869008 allocated - 2.73x more
         jserializer:    1078105 allocated - 3.39x more
                alba:    1087273 allocated - 3.41x more
         alba_inline:    1102273 allocated - 3.46x more
         blueprinter:    1950537 allocated - 6.13x more
               rails:    2513561 allocated - 7.89x more
            json_api:    2912857 allocated - 9.15x more
       representable:    3437158 allocated - 10.79x more
                 ams:    5186847 allocated - 16.29x more
          simple_ams:    7291417 allocated - 22.90x more

Conclusion: panko is extremely fast but it's a C extension gem. As pure Ruby gems, Alba, turbostreamer and jserializer are notably faster than others, but Alba is slightly slower than other two.