Programming Language and compiler
Benchmarks

All json-serde problem benchmarks

Current benchmark data was generated on Sun Jun 01 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 29ms 1.8ms 9.8MB 20ms 0ms rustc 1.87.0
rust 4-i.rs 31ms 0.8ms 7.9MB 20ms 0ms rustc 1.87.0
go 2-ffi.go 45ms 0.9ms 41.2MB 40ms 0ms go 1.24.3
d 2.d 58ms 1.9ms 15.6MB 60ms 10ms ldc2 1.40.1
rust 2.rs 59ms 2.6ms 33.8MB 37ms 10ms rustc 1.87.0
rust 3.rs 59ms 2.5ms 32.0MB 37ms 7ms rustc 1.87.0
javascript 1.js 71ms 1.1ms 67.8MB 40ms 20ms bun 1.2.15
rust 1.rs 99ms 3.4ms 67.4MB 63ms 23ms rustc 1.87.0
javascript 1.js 102ms 0.9ms 74.9MB 80ms 20ms node 24.1.0
go 1.go 142ms 3.5ms 18.6MB 137ms 0ms go 1.24.3
typescript 1.ts 160ms 5.7ms 93.2MB 160ms 30ms deno 2.3.5
dart 1.dart 163ms 2.4ms 53.0MB 140ms 17ms dart/exe 3.8.1
python 1.py 201ms 2.9ms 38.2MB 170ms 20ms pyston 3.8.12
python 1.py 217ms 3.3ms 38.6MB 193ms 10ms cpython 3.13.3
d 2.d 239ms 2.5ms 22.5MB 243ms 10ms dmd 2.111.0
ruby 1.rb 247ms 0.5ms 27.5MB 220ms 10ms ruby 3.4.4
ruby 1.rb 249ms 5.5ms 27.8MB 220ms 13ms ruby/yjit 3.4.4
python 1.py 303ms 4.4ms 88.7MB 267ms 27ms pypy 3.10.16
csharp 2.cs 306ms 0.8ms 68.7MB 270ms 30ms dotnet 9.0.300
csharp 1.cs 720ms 5.2ms 143.7MB 743ms 83ms dotnet 9.0.300
kotlin 1-m.kt 732ms 78ms 157.5MB 1977ms 67ms kotlin/jvm 21
ruby 1-m.rb 4414ms 177ms 502.4MB 11650ms 337ms truffleruby 24.2.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 217ms 2.8ms 53.3MB 190ms 10ms rustc 1.87.0
go 2-ffi.go 253ms 11ms 163.1MB 243ms 47ms go 1.24.3
rust 4-i.rs 259ms 4.8ms 54.5MB 207ms 40ms rustc 1.87.0
javascript 1.js 386ms 2.1ms 235.8MB 333ms 97ms bun 1.2.15
rust 2.rs 389ms 5.3ms 238.3MB 283ms 93ms rustc 1.87.0
rust 3.rs 406ms 4.6ms 237.8MB 303ms 90ms rustc 1.87.0
d 2.d 455ms 7.2ms 139.9MB 420ms 40ms ldc2 1.40.1
javascript 1.js 575ms 1.9ms 203.2MB 583ms 123ms node 24.1.0
rust 1.rs 684ms 5.4ms 551.8MB 440ms 233ms rustc 1.87.0
go 1.go 738ms 4.5ms 105.1MB 727ms 10ms go 1.24.3
typescript 1.ts 1186ms 8.4ms 414.0MB 1300ms 147ms deno 2.3.5
dart 1.dart 1453ms 4.4ms 205.8MB 1683ms 110ms dart/exe 3.8.1
csharp 2.cs 1470ms 26ms 232.5MB 1603ms 87ms dotnet 9.0.300
kotlin 1-m.kt 1846ms 49ms 711.3MB 4333ms 173ms kotlin/jvm 21
python 1.py 1846ms 14ms 220.5MB 1683ms 150ms pyston 3.8.12
python 1.py 1926ms 22ms 223.4MB 1847ms 67ms pypy 3.10.16
python 1.py 1927ms 18ms 221.3MB 1823ms 87ms cpython 3.13.3
ruby 1.rb 2068ms 11ms 135.0MB 1977ms 77ms ruby/yjit 3.4.4
ruby 1.rb 2084ms 23ms 133.9MB 2000ms 73ms ruby 3.4.4
d 2.d 2499ms 7.6ms 158.5MB 2513ms 37ms dmd 2.111.0
csharp 1.cs 2689ms 90ms 753.0MB 3190ms 447ms dotnet 9.0.300
ruby 1.rb timeout 0.0ms 515.9MB 13230ms 373ms truffleruby 24.2.1