Kotlin VS C benchmarks

Current benchmark data was generated on Sun Jan 29 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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 637ms 22ms 413.1MB 650ms 83ms kotlin/jvm 17.0.2
kotlin 1.kt timeout 0.0ms 214.4MB 8513ms 1040ms kotlin/native 1.8.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 126ms 1.9ms 109.3MB 110ms 27ms kotlin/jvm 17.0.2
kotlin 1-m.kt 498ms 4.9ms 30.5MB 830ms 97ms kotlin/native 1.8.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2838ms 51ms 154.4MB 3633ms 70ms kotlin/jvm 17.0.2
kotlin 2-m.kt 3112ms 65ms 160.9MB 5930ms 70ms kotlin/jvm 17.0.2
kotlin 1.kt timeout 0.0ms 10.8MB 6237ms 273ms kotlin/native 1.8.0
kotlin 2-m.kt timeout 0.0ms 32.3MB 9277ms 130ms kotlin/native 1.8.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 706ms 31ms 100.0MB 1227ms 43ms kotlin/jvm 17.0.2
kotlin 2-m.kt 847ms 31ms 23.0MB 1523ms 23ms kotlin/native 1.8.0
kotlin 2-m.kt 983ms 35ms 100.4MB 1770ms 33ms kotlin/jvm 17.0.2
kotlin 1.kt 1022ms 5.5ms 8.8MB 1277ms 57ms kotlin/native 1.8.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.7ms 0.7ms 1.4MB 0ms 0ms clang 14.0.0
c 1.c 1.9ms 0.9ms 1.3MB 0ms 0ms gcc 12.2.0
c 1.c 2.4ms 1.1ms 1.0MB 0ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
kotlin 1.kt 2.4ms 0.6ms 2.7MB 0ms 0ms kotlin/native 1.8.0
kotlin 1.kt 68ms 1.8ms 40.9MB 50ms 4ms kotlin/jvm 17.0.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt timeout 0.0ms 251.2MB 8897ms 667ms kotlin/jvm 17.0.2
kotlin 2.kt timeout 0.0ms 311.1MB 8893ms 620ms kotlin/jvm 17.0.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2.kt 2540ms 64ms 201.4MB 2793ms 183ms kotlin/jvm 17.0.2
kotlin 1-m.kt 2622ms 5.8ms 190.0MB 4000ms 290ms 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 1142ms 8.4ms 217.5MB 1933ms 87ms kotlin/jvm 17.0.2

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 4104ms 270ms 1188.0MB 5900ms 297ms kotlin/jvm 17.0.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2-m.kt 223ms 7.8ms 113.7MB 313ms 33ms kotlin/jvm 17.0.2
kotlin 1.kt 235ms 8.3ms 109.5MB 287ms 27ms kotlin/jvm 17.0.2
kotlin 2-m.kt 447ms 4.4ms 42.5MB 747ms 3ms kotlin/native 1.8.0
kotlin 1.kt timeout 0.0ms 15.0MB 5000ms 3ms kotlin/native 1.8.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 2.kt 370ms 3.7ms 113.5MB 463ms 37ms kotlin/jvm 17.0.2
kotlin 1.kt 456ms 3.4ms 132.4MB 513ms 17ms kotlin/jvm 17.0.2
kotlin 2-m.kt 1371ms 27ms 145.0MB 2247ms 63ms kotlin/native 1.8.0
kotlin 1.kt timeout 0.0ms 15.0MB 4997ms 3ms kotlin/native 1.8.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 171ms 5.5ms 74.0MB 233ms 13ms kotlin/jvm 17.0.2
kotlin 2-m.kt 182ms 4.2ms 78.2MB 253ms 20ms kotlin/jvm 17.0.2
kotlin 2-m.kt 230ms 8.2ms 32.3MB 390ms 7ms kotlin/native 1.8.0
kotlin 1.kt timeout 0.0ms 17.1MB 4993ms 7ms kotlin/native 1.8.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 462ms 24ms 560.0MB 447ms 70ms kotlin/jvm 17.0.2
kotlin 1-m.kt 2769ms 141ms 140.6MB 4437ms 550ms kotlin/native 1.8.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 178ms 1.2ms 221.3MB 157ms 50ms kotlin/jvm 17.0.2
kotlin 1-m.kt 520ms 3.0ms 38.4MB 823ms 90ms kotlin/native 1.8.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 318ms 8.8ms 1.3MB 303ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 5.c 323ms 1.9ms 1.3MB 310ms 0ms gcc 12.2.0
c 5.c 329ms 1.3ms 1.4MB 320ms 0ms clang 14.0.0
c 5.c 330ms 1.7ms 1.0MB 320ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 2.c 343ms 2.5ms 1.2MB 330ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 2.c 345ms 3.1ms 1.4MB 330ms 0ms clang 14.0.0
c 8-i.c 365ms 0.3ms 1.3MB 350ms 0ms gcc 12.2.0
c 8-i.c 370ms 3.6ms 1.4MB 357ms 0ms clang 14.0.0
kotlin 1n.kt 558ms 17ms 1.5MB 550ms 0ms kotlin/native 1.8.0
kotlin 1.kt 573ms 5.3ms 42.8MB 577ms 17ms kotlin/jvm 17.0.2
c 2.c 623ms 1.4ms 1.3MB 613ms 0ms gcc 12.2.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 5.c 34ms 0.1ms 1.3MB 20ms 0ms gcc 12.2.0
c 8-i.c 35ms 1.3ms 1.2MB 20ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 2.c 36ms 0.5ms 1.2MB 27ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 2.c 36ms 0.4ms 1.4MB 27ms 0ms clang 14.0.0
c 5.c 37ms 1.2ms 1.0MB 27ms 0ms zigcc 0.11.0-dev.1480+f68d3c63d
c 5.c 37ms 3.2ms 1.4MB 27ms 0ms clang 14.0.0
c 8-i.c 39ms 0.5ms 1.4MB 30ms 0ms clang 14.0.0
c 8-i.c 39ms 0.9ms 1.3MB 30ms 0ms gcc 12.2.0
kotlin 1n.kt 59ms 1.8ms 1.5MB 47ms 0ms kotlin/native 1.8.0
c 2.c 65ms 0.3ms 1.3MB 57ms 0ms gcc 12.2.0
kotlin 1.kt 137ms 3.7ms 42.8MB 143ms 7ms kotlin/jvm 17.0.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt timeout 0.0ms 209.1MB 5367ms 70ms kotlin/jvm 17.0.2
kotlin 1n.kt timeout 0.0ms 8.9MB 6317ms 127ms kotlin/native 1.8.0
kotlin 2n.kt timeout 0.0ms 10.5MB 5033ms 87ms kotlin/native 1.8.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 1451ms 36ms 224.1MB 1807ms 43ms kotlin/jvm 17.0.2
kotlin 1n.kt timeout 0.0ms 14.9MB 6290ms 127ms kotlin/native 1.8.0
kotlin 2n.kt timeout 0.0ms 9.1MB 5033ms 93ms kotlin/native 1.8.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt timeout 0.0ms 161.4MB 5330ms 47ms kotlin/jvm 17.0.2
kotlin 1n.kt timeout 0.0ms 277.3MB 5660ms 510ms kotlin/native 1.8.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 1080ms 4.0ms 95.7MB 1457ms 30ms kotlin/jvm 17.0.2
kotlin 1n.kt 4371ms 24ms 65.2MB 5643ms 20ms kotlin/native 1.8.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 4484ms 24ms 183.5MB 5367ms 77ms 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 1366ms 12ms 187.1MB 2070ms 50ms kotlin/jvm 17.0.2