Programming Language and compiler
Benchmarks

Kotlin VS Crystal benchmarks

Current benchmark data was generated on Wed May 25 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (Model 85)

* -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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 712ms 0.5ms 307.9MB 740ms 87ms kotlin/jvm 17.0.2
crystal 1.cr 1959ms 5.7ms 64.5MB 2317ms 27ms crystal 1.4.1
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 137ms 1.9ms 109.6MB 113ms 33ms kotlin/jvm 17.0.2
crystal 1.cr 143ms 1.4ms 12.9MB 150ms 0ms crystal 1.4.1
kotlin 1.kt 380ms 1.3ms 62.1MB 350ms 13ms kotlin/native 1.6.21

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2268ms 8.4ms 22.3MB 2203ms 47ms crystal 1.4.1
kotlin 2-m.kt 3070ms 596ms 182.5MB 5807ms 87ms kotlin/jvm 17.0.2
kotlin 1.kt 3092ms 4.3ms 170.9MB 3890ms 70ms kotlin/jvm 17.0.2
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21
kotlin 2-m.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 126ms 3.3ms 7.6MB 110ms 3ms crystal 1.4.1
kotlin 1-m.kt 706ms 27ms 93.2MB 1247ms 43ms kotlin/jvm 17.0.2
kotlin 2-m.kt 976ms 5.7ms 68.2MB 1703ms 33ms kotlin/native 1.6.21
kotlin 2-m.kt 1003ms 75ms 105.5MB 1820ms 40ms kotlin/jvm 17.0.2
kotlin 1.kt 1172ms 4.8ms 48.7MB 1147ms 10ms kotlin/native 1.6.21

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.6ms 0.9ms 1.2MB 0ms 0ms kotlin/native 1.6.21
crystal 1.cr 3.8ms 0.8ms 2.8MB 0ms 0ms crystal 1.4.1
kotlin 1.kt 73ms 2.6ms 41.1MB 52ms 12ms kotlin/jvm 17.0.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3786ms 625ms 130.5MB 420ms 280ms crystal 1.4.1
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/jvm 17.0.2
kotlin 2.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/jvm 17.0.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1184ms 111ms 35.7MB 50ms 47ms crystal 1.4.1
kotlin 2-m.kt 2250ms 240ms 237.8MB 3337ms 303ms kotlin/jvm 17.0.2
kotlin 1-m.kt 2284ms 167ms 236.0MB 3647ms 287ms kotlin/jvm 17.0.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 1042ms 27ms 215.1MB 1737ms 83ms kotlin/jvm 17.0.2

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 4142ms 313ms 954.1MB 5743ms 387ms kotlin/jvm 17.0.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 63ms 1.8ms 3.0MB 50ms 0ms crystal 1.4.1
crystal 1.cr 110ms 0.2ms 3.1MB 100ms 0ms crystal 1.4.1
kotlin 2-m.kt 243ms 1.3ms 112.3MB 323ms 47ms kotlin/jvm 17.0.2
kotlin 1.kt 256ms 2.6ms 109.7MB 307ms 33ms kotlin/jvm 17.0.2
kotlin 2.kt 395ms 25ms 92.1MB 363ms 13ms kotlin/native 1.6.21
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 176ms 0.2ms 4.9MB 160ms 0ms crystal 1.4.1
crystal 1.cr 323ms 4.4ms 5.1MB 310ms 0ms crystal 1.4.1
kotlin 2.kt 417ms 7.8ms 127.4MB 510ms 47ms kotlin/jvm 17.0.2
kotlin 1.kt 484ms 10.0ms 138.4MB 517ms 53ms kotlin/jvm 17.0.2
kotlin 2.kt 1335ms 16ms 150.2MB 1290ms 30ms kotlin/native 1.6.21
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 31ms 2.3ms 3.1MB 20ms 0ms crystal 1.4.1
crystal 1.cr 57ms 1.1ms 5.1MB 47ms 0ms crystal 1.4.1
kotlin 1.kt 184ms 1.5ms 74.1MB 240ms 27ms kotlin/jvm 17.0.2
kotlin 2.kt 192ms 3.8ms 42.1MB 167ms 10ms kotlin/native 1.6.21
kotlin 2-m.kt 199ms 1.9ms 78.8MB 280ms 30ms kotlin/jvm 17.0.2
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 538ms 9.7ms 363.9MB 503ms 113ms kotlin/jvm 17.0.2
crystal 1.cr 1471ms 5.0ms 64.3MB 1713ms 20ms crystal 1.4.1
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 203ms 1.8ms 221.2MB 180ms 57ms kotlin/jvm 17.0.2
crystal 1.cr 246ms 2.3ms 17.7MB 260ms 13ms crystal 1.4.1
kotlin 1.kt 689ms 9.9ms 74.3MB 657ms 10ms kotlin/native 1.6.21

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 593ms 0.5ms 3.2MB 577ms 0ms crystal 1.4.1
crystal 2.cr 623ms 0.5ms 3.4MB 610ms 0ms crystal 1.4.1
kotlin 1.kt 633ms 16ms 43.1MB 647ms 10ms kotlin/jvm 17.0.2
kotlin 1n.kt 705ms 4.2ms 1.1MB 693ms 0ms kotlin/native 1.6.21

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 65ms 1.7ms 5.0MB 53ms 0ms crystal 1.4.1
crystal 2.cr 67ms 1.8ms 3.2MB 57ms 0ms crystal 1.4.1
kotlin 1n.kt 73ms 1.5ms 1.1MB 67ms 0ms kotlin/native 1.6.21
kotlin 1.kt 149ms 1.4ms 43.2MB 160ms 17ms kotlin/jvm 17.0.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2792ms 50ms 8.8MB 3063ms 283ms crystal 1.4.1
kotlin 1.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/jvm 17.0.2
kotlin 1n.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21
kotlin 2n.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 645ms 7.0ms 7.5MB 663ms 83ms crystal 1.4.1
kotlin 1.kt 1560ms 32ms 249.6MB 1917ms 100ms kotlin/jvm 17.0.2
kotlin 1n.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21
kotlin 2n.kt timeout 0.0ms 0.0MB 0ms 0ms kotlin/native 1.6.21

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 4437ms 132ms 187.6MB 5327ms 63ms kotlin/jvm 17.0.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 1370ms 11ms 193.2MB 2130ms 77ms kotlin/jvm 17.0.2