Programming Language and compiler
Benchmarks

Wasm VS Python benchmarks

Current benchmark data was generated on Sun Dec 01 2024, 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 1149ms 16ms 95.7MB 1087ms 47ms pypy 3.10.14
wasm 5.rs 1531ms 12ms 55.1MB 1500ms 13ms wasmer/llvm 5.0.2
wasm 4.rs 1599ms 10.0ms 54.8MB 1570ms 17ms wasmer/llvm 5.0.2
wasm 3.rs 1644ms 39ms 71.3MB 1600ms 27ms wasmer/llvm 5.0.2
wasm 5.rs 1750ms 25ms 34.8MB 1723ms 10ms wasmtime 27.0.0
wasm 4.rs 1794ms 30ms 34.9MB 1777ms 3ms wasmtime 27.0.0
wasm 3.rs 1860ms 47ms 52.9MB 1830ms 17ms wasmtime 27.0.0
python 1.py timeout 0.0ms 40.8MB 4970ms 17ms cpython 3.13.0
python 1.py timeout 0.0ms 40.6MB 4743ms 240ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 94ms 1.9ms 68.0MB 63ms 20ms pypy 3.10.14
wasm 5.rs 152ms 0.8ms 41.0MB 140ms 0ms wasmer/llvm 5.0.2
wasm 4.rs 161ms 3.1ms 41.0MB 143ms 3ms wasmer/llvm 5.0.2
wasm 3.rs 165ms 6.6ms 42.9MB 143ms 7ms wasmer/llvm 5.0.2
wasm 4.rs 171ms 1.2ms 21.0MB 157ms 3ms wasmtime 27.0.0
wasm 3.rs 174ms 3.1ms 22.9MB 157ms 3ms wasmtime 27.0.0
wasm 5.rs 181ms 18ms 22.9MB 163ms 0ms wasmtime 27.0.0
python 1.py 491ms 25ms 11.9MB 463ms 7ms pyston 3.8.12
python 1.py 710ms 4.2ms 12.8MB 697ms 0ms cpython 3.13.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1094ms 34ms 38.6MB 1077ms 3ms wasmer/llvm 5.0.2
wasm 3.rs 1163ms 43ms 21.3MB 1150ms 0ms wasmtime 27.0.0
python 1.py 1178ms 15ms 102.5MB 1133ms 30ms pypy 3.10.14
python 1.py timeout 0.0ms 21.1MB 4977ms 7ms cpython 3.13.0
python 1.py timeout 0.0ms 17.1MB 4977ms 7ms pyston 3.8.12

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 80ms 1.4ms 21.8MB 63ms 0ms wasmtime 27.0.0
wasm 3.rs 81ms 2.4ms 39.2MB 63ms 3ms wasmer/llvm 5.0.2
python 1.py 219ms 6.3ms 84.3MB 183ms 20ms pypy 3.10.14
python 1.py 572ms 3.4ms 20.4MB 543ms 10ms cpython 3.13.0
python 1.py 685ms 13ms 16.8MB 663ms 7ms pyston 3.8.12

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 250ms 4.1ms 82.8MB 203ms 30ms pypy 3.10.14
python 1.py 356ms 1.6ms 12.6MB 337ms 3ms cpython 3.13.0
wasm 1.rs 357ms 2.7ms 38.5MB 343ms 0ms wasmer/llvm 5.0.2
wasm 1.rs 418ms 3.7ms 20.2MB 403ms 3ms wasmtime 27.0.0
python 1.py 1997ms 6.3ms 9.6MB 1983ms 0ms pyston 3.8.12

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 1.py 101ms 1.8ms 62.9MB 70ms 17ms pypy 3.10.14
wasm 1.rs 101ms 0.3ms 38.5MB 87ms 3ms wasmer/llvm 5.0.2
python 1.py 112ms 8.0ms 11.9MB 97ms 0ms cpython 3.13.0
wasm 1.rs 113ms 1.8ms 21.7MB 100ms 0ms wasmtime 27.0.0
python 1.py 346ms 1.7ms 8.8MB 330ms 0ms pyston 3.8.12

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 3274ms 9.3ms 39.0MB 3263ms 0ms wasmer/llvm 5.0.2
wasm 1.rs 4081ms 22ms 18.6MB 4063ms 0ms wasmtime 27.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 285ms 1.7ms 36.9MB 270ms 0ms wasmer/llvm 5.0.2
wasm 1.rs 341ms 0.3ms 18.5MB 327ms 0ms wasmtime 27.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 230ms 2.2ms 19.0MB 213ms 0ms wasmtime 27.0.0
wasm 1.rs 331ms 4.4ms 37.5MB 233ms 70ms wasmer/llvm 5.0.2
python 1.py 1909ms 10.0ms 88.3MB 1867ms 23ms pypy 3.10.14
python 5-m.py 2472ms 27ms 12.5MB 3610ms 997ms pyston 3.8.12
python 5-m.py 2826ms 10ms 64.9MB 4047ms 780ms pypy 3.10.14
python 1.py 3033ms 47ms 8.1MB 3017ms 0ms pyston 3.8.12
python 5-m.py 3411ms 65ms 13.9MB 4617ms 930ms cpython 3.13.0
python 1.py 4670ms 96ms 8.8MB 4650ms 3ms cpython 3.13.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 34ms 5.0ms 19.0MB 20ms 3ms wasmtime 27.0.0
wasm 1.rs 45ms 0.8ms 37.5MB 23ms 3ms wasmer/llvm 5.0.2
python 1.py 250ms 0.3ms 63.8MB 223ms 10ms pypy 3.10.14
python 5-m.py 312ms 1.4ms 12.5MB 420ms 123ms pyston 3.8.12
python 1.py 312ms 2.4ms 8.1MB 297ms 0ms pyston 3.8.12
python 5-m.py 408ms 10ms 13.9MB 520ms 120ms cpython 3.13.0
python 1.py 478ms 11ms 8.8MB 463ms 0ms cpython 3.13.0
python 5-m.py 555ms 5.0ms 65.0MB 817ms 313ms pypy 3.10.14

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 7.4ms 0.3ms 21.1MB 0ms 0ms wasmtime 27.0.0
wasm 1.rs 12ms 0.4ms 38.6MB 0ms 0ms wasmer/llvm 5.0.2
python 1.py 12ms 1.2ms 7.6MB 5ms 5ms pyston 3.8.12
python 1.py 15ms 0.3ms 8.5MB 10ms 0ms cpython 3.13.0
python 1.py 29ms 1.5ms 51.0MB 4ms 12ms pypy 3.10.14

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 79ms 1.1ms 20.7MB 60ms 0ms wasmtime 27.0.0
wasm 1.rs 80ms 0.5ms 37.2MB 63ms 0ms wasmer/llvm 5.0.2
python 2.py 146ms 5.0ms 57.9MB 120ms 7ms pypy 3.10.14
python 1.py 176ms 0.5ms 59.5MB 150ms 10ms pypy 3.10.14
python 1.py 713ms 3.1ms 8.9MB 703ms 0ms pyston 3.8.12
python 2.py 841ms 12ms 8.5MB 830ms 0ms pyston 3.8.12
python 1.py 1118ms 25ms 9.4MB 1110ms 0ms cpython 3.13.0
python 2.py 1290ms 15ms 9.1MB 1273ms 0ms cpython 3.13.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 220ms 0.7ms 37.4MB 207ms 3ms wasmer/llvm 5.0.2
wasm 1.rs 224ms 4.2ms 19.1MB 210ms 0ms wasmtime 27.0.0
python 2.py 339ms 1.0ms 58.9MB 313ms 13ms pypy 3.10.14
python 1.py 372ms 2.9ms 60.4MB 347ms 10ms pypy 3.10.14
python 1.py 2130ms 31ms 8.9MB 2117ms 3ms pyston 3.8.12
python 2.py 2504ms 61ms 8.5MB 2490ms 0ms pyston 3.8.12
python 1.py 3298ms 41ms 9.4MB 3283ms 0ms cpython 3.13.0
python 2.py 3869ms 4.9ms 9.1MB 3853ms 0ms cpython 3.13.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 46ms 0.7ms 19.2MB 37ms 0ms wasmtime 27.0.0
wasm 1.rs 49ms 1.3ms 38.5MB 37ms 0ms wasmer/llvm 5.0.2
python 2.py 103ms 0.8ms 57.8MB 77ms 13ms pypy 3.10.14
python 1.py 120ms 2.9ms 58.5MB 97ms 7ms pypy 3.10.14
python 1.py 349ms 5.9ms 8.5MB 333ms 0ms pyston 3.8.12
python 2.py 384ms 5.3ms 8.1MB 367ms 3ms pyston 3.8.12
python 1.py 536ms 14ms 9.3MB 520ms 0ms cpython 3.13.0
python 2.py 617ms 1.4ms 8.8MB 607ms 0ms cpython 3.13.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 698ms 1.7ms 40.4MB 677ms 7ms wasmer/llvm 5.0.2
wasm 8.rs 821ms 15ms 24.0MB 810ms 0ms wasmtime 27.0.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 42ms 0.2ms 37.5MB 27ms 3ms wasmer/llvm 5.0.2
wasm 8.rs 43ms 0.8ms 19.1MB 33ms 0ms wasmtime 27.0.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 774ms 5.0ms 61.2MB 737ms 23ms wasmer/llvm 5.0.2
wasm 1.rs 868ms 25ms 42.9MB 840ms 13ms wasmtime 27.0.0
python 1.py 2247ms 43ms 210.1MB 2133ms 97ms pypy 3.10.14
python 1.py timeout 0.0ms 93.9MB 4953ms 30ms cpython 3.13.0
python 1.py timeout 0.0ms 130.3MB 4930ms 50ms pyston 3.8.12

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 175ms 0.7ms 45.1MB 153ms 10ms wasmer/llvm 5.0.2
wasm 1.rs 192ms 10ms 24.9MB 180ms 3ms wasmtime 27.0.0
python 1.py 378ms 2.6ms 103.6MB 327ms 33ms pypy 3.10.14
python 1.py 3059ms 119ms 37.1MB 3030ms 17ms cpython 3.13.0
python 1.py timeout 0.0ms 48.9MB 4953ms 33ms pyston 3.8.12

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 343ms 1.8ms 37.1MB 323ms 3ms wasmer/llvm 5.0.2
wasm 1.rs 406ms 1.4ms 20.8MB 390ms 0ms wasmtime 27.0.0
wasm 2.rs 552ms 37ms 39.3MB 540ms 0ms wasmer/llvm 5.0.2
wasm 2.rs 576ms 0.6ms 20.8MB 560ms 0ms wasmtime 27.0.0
python 2.py 1352ms 14ms 59.8MB 1320ms 17ms pypy 3.10.14
python 1.py 2641ms 30ms 56.6MB 2610ms 13ms pypy 3.10.14
python 1.py timeout 0.0ms 8.8MB 4987ms 0ms cpython 3.13.0
python 2.py timeout 0.0ms 8.8MB 4983ms 0ms cpython 3.13.0
python 1.py timeout 0.0ms 8.3MB 4990ms 0ms pyston 3.8.12
python 2.py timeout 0.0ms 8.1MB 4990ms 0ms pyston 3.8.12

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 47ms 0.8ms 38.4MB 30ms 3ms wasmer/llvm 5.0.2
wasm 1.rs 49ms 0.5ms 20.8MB 33ms 3ms wasmtime 27.0.0
wasm 2.rs 66ms 0.8ms 20.8MB 50ms 3ms wasmtime 27.0.0
wasm 2.rs 67ms 3.4ms 37.4MB 50ms 7ms wasmer/llvm 5.0.2
python 2.py 180ms 2.7ms 57.6MB 153ms 10ms pypy 3.10.14
python 1.py 304ms 5.3ms 56.8MB 277ms 10ms pypy 3.10.14
python 1.py 1078ms 255ms 8.3MB 1063ms 0ms pyston 3.8.12
python 2.py 1319ms 15ms 8.1MB 1303ms 0ms pyston 3.8.12
python 1.py 2912ms 17ms 8.8MB 2900ms 0ms cpython 3.13.0
python 2.py 3132ms 41ms 8.8MB 3123ms 0ms cpython 3.13.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 351ms 5.0ms 42.1MB 333ms 3ms wasmer/llvm 5.0.2
wasm 1.rs 364ms 8.8ms 76.2MB 350ms 3ms wasmer/llvm 5.0.2
wasm 2.rs 381ms 11ms 23.8MB 370ms 0ms wasmtime 27.0.0
wasm 1.rs 510ms 6.0ms 58.2MB 490ms 7ms wasmtime 27.0.0
python 1.py 2489ms 28ms 369.0MB 2417ms 57ms pypy 3.10.14
python 2.py 2905ms 8.7ms 632.9MB 2723ms 167ms pyston 3.8.12
python 1.py 4843ms 56ms 320.4MB 4783ms 43ms pyston 3.8.12
python 1.py timeout 0.0ms 321.2MB 4963ms 23ms cpython 3.13.0
python 2.py timeout 0.0ms 633.6MB 4813ms 170ms cpython 3.13.0
python 2.py timeout 0.0ms 959.3MB 4733ms 250ms pypy 3.10.14

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 70ms 1.4ms 47.0MB 57ms 0ms wasmer/llvm 5.0.2
wasm 2.rs 95ms 1.1ms 38.6MB 80ms 0ms wasmer/llvm 5.0.2
wasm 2.rs 96ms 1.1ms 20.1MB 80ms 7ms wasmtime 27.0.0
wasm 1.rs 97ms 1.5ms 28.7MB 90ms 0ms wasmtime 27.0.0
python 1.py 540ms 2.4ms 134.6MB 500ms 27ms pypy 3.10.14
python 2.py 709ms 4.9ms 164.2MB 657ms 33ms pyston 3.8.12
python 1.py 1118ms 29ms 86.0MB 1090ms 10ms pyston 3.8.12
python 2.py 1383ms 21ms 164.9MB 1333ms 30ms cpython 3.13.0
python 2.py 1531ms 11ms 289.6MB 1443ms 73ms pypy 3.10.14
python 1.py 2652ms 13ms 86.9MB 2623ms 10ms cpython 3.13.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 1907ms 12ms 8.9MB 1853ms 37ms pyston 3.8.12
python 4.py 1961ms 9.8ms 9.5MB 1897ms 47ms cpython 3.13.0
wasm 2.rs 2075ms 6.3ms 37.6MB 2053ms 3ms wasmer/llvm 5.0.2
python 4.py 2141ms 12ms 89.1MB 2093ms 33ms pypy 3.10.14
wasm 2.rs 2160ms 7.6ms 19.7MB 2147ms 0ms wasmtime 27.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
python 4.py 450ms 3.5ms 8.6MB 437ms 0ms pyston 3.8.12
python 4.py 484ms 30ms 9.1MB 470ms 0ms cpython 3.13.0
wasm 2.rs 493ms 3.2ms 39.4MB 480ms 0ms wasmer/llvm 5.0.2
wasm 2.rs 514ms 2.4ms 19.2MB 497ms 0ms wasmtime 27.0.0
python 4.py 545ms 13ms 83.5MB 503ms 27ms pypy 3.10.14

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 3108ms 21ms 37.1MB 3093ms 3ms wasmer/llvm 5.0.2
python 1.py 3142ms 2.3ms 8.3MB 3133ms 0ms pyston 3.8.12
wasm 1.rs 3496ms 1.3ms 20.6MB 3480ms 0ms wasmtime 27.0.0
python 1.py 3709ms 13ms 74.6MB 3663ms 30ms pypy 3.10.14
python 1.py 3866ms 69ms 8.8MB 3857ms 0ms cpython 3.13.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 787ms 3.0ms 39.0MB 773ms 3ms wasmer/llvm 5.0.2
python 1.py 799ms 3.3ms 8.3MB 783ms 0ms pyston 3.8.12
wasm 1.rs 887ms 3.6ms 20.7MB 877ms 0ms wasmtime 27.0.0
python 1.py 976ms 18ms 8.8MB 960ms 0ms cpython 3.13.0
python 1.py 1043ms 10ms 67.5MB 1003ms 17ms pypy 3.10.14

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 3587ms 3.9ms 37.2MB 3573ms 3ms wasmer/llvm 5.0.2
wasm 2.rs 3589ms 8.6ms 18.9MB 3573ms 0ms wasmtime 27.0.0
wasm 7.rs 3597ms 1.9ms 38.9MB 3580ms 3ms wasmer/llvm 5.0.2
wasm 7.rs 4874ms 3.3ms 20.7MB 4857ms 0ms wasmtime 27.0.0
python 8.py timeout 0.0ms 16.7MB 53ms 10ms cpython 3.13.0
python 8.py timeout 0.0ms 100.0MB 833ms 137ms pypy 3.10.14
python 8.py timeout 0.0ms 18.2MB 70ms 13ms pyston 3.8.12

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 906ms 2.5ms 18.7MB 890ms 0ms wasmtime 27.0.0
wasm 2.rs 909ms 1.3ms 38.9MB 893ms 0ms wasmer/llvm 5.0.2
wasm 7.rs 909ms 0.8ms 39.0MB 893ms 0ms wasmer/llvm 5.0.2
wasm 7.rs 1233ms 11ms 18.7MB 1220ms 0ms wasmtime 27.0.0
python 8.py timeout 0.0ms 16.4MB 93ms 30ms cpython 3.13.0
python 8.py timeout 0.0ms 99.8MB 1533ms 517ms pypy 3.10.14
python 8.py timeout 0.0ms 17.5MB 140ms 33ms pyston 3.8.12

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 234ms 2.2ms 18.5MB 220ms 0ms wasmtime 27.0.0
wasm 2.rs 238ms 1.1ms 38.9MB 227ms 0ms wasmer/llvm 5.0.2
wasm 7.rs 239ms 1.1ms 37.2MB 223ms 0ms wasmer/llvm 5.0.2
wasm 7.rs 321ms 11ms 18.8MB 303ms 0ms wasmtime 27.0.0
python 8-m.py 1973ms 18ms 95.1MB 6307ms 370ms pypy 3.10.14
python 8.py timeout 0.0ms 16.1MB 277ms 40ms cpython 3.13.0
python 8.py timeout 0.0ms 17.3MB 397ms 113ms pyston 3.8.12