Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

Python VS Rust benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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
rust 5.rs 2161ms 12ms 33.8MB 2140ms 3ms rustc 1.98.1
rust 3.rs 2212ms 49ms 49.8MB 2183ms 10ms rustc 1.98.1
rust 4.rs 2253ms 19ms 33.8MB 2230ms 10ms rustc 1.98.1
python 1.py 11298ms 16ms 42.2MB 11140ms 137ms cpython 3.12.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5.rs 185ms 4.9ms 5.7MB 173ms 0ms rustc 1.98.1
rust 4.rs 203ms 1.5ms 5.7MB 190ms 0ms rustc 1.98.1
rust 3.rs 205ms 20ms 7.8MB 190ms 0ms rustc 1.98.1
python 1.py 1013ms 82ms 14.0MB 993ms 3ms cpython 3.12.3

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-m.rs 776ms 8.2ms 5.2MB 2963ms 60ms rustc 1.98.1
rust 3-m.rs 1159ms 98ms 8.8MB 4437ms 87ms rustc 1.98.1
rust 1-m.rs 1841ms 27ms 8.6MB 6870ms 303ms rustc 1.98.1
rust 3.rs 2252ms 19ms 9.1MB 2177ms 60ms rustc 1.98.1
rust 4.rs 3680ms 17ms 7.3MB 3663ms 3ms rustc 1.98.1
python 1.py 65184ms 117ms 29.0MB 65137ms 23ms cpython 3.12.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-m.rs 80ms 20ms 3.2MB 270ms 0ms rustc 1.98.1
rust 3-m.rs 81ms 11ms 5.8MB 260ms 10ms rustc 1.98.1
rust 3.rs 128ms 4.2ms 3.9MB 113ms 0ms rustc 1.98.1
rust 1-m.rs 128ms 3.9ms 5.5MB 437ms 23ms rustc 1.98.1
rust 4.rs 243ms 10ms 3.3MB 233ms 0ms rustc 1.98.1
python 1.py 1188ms 13ms 25.0MB 1167ms 7ms cpython 3.12.3

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 195ms 1.6ms 4.4MB 183ms 0ms rustc 1.98.1
rust 1.rs 203ms 29ms 3.6MB 197ms 0ms rustc 1.98.1
python 1.py 786ms 5.0ms 15.6MB 770ms 0ms cpython 3.12.3

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 52ms 2.2ms 2.8MB 40ms 0ms rustc 1.98.1
rust 2.rs 54ms 4.2ms 3.4MB 43ms 0ms rustc 1.98.1
python 1.py 290ms 1.1ms 14.8MB 273ms 7ms cpython 3.12.3

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 107ms 0.9ms 2.4MB 347ms 3ms rustc 1.98.1
rust 5-m.rs 125ms 2.6ms 2.4MB 427ms 0ms rustc 1.98.1
rust 1c.rs 173ms 1.3ms 1.2MB 163ms 0ms rustc 1.98.1
rust 6.rs 186ms 9.1ms 1.1MB 180ms 0ms rustc 1.98.1
rust 1.rs 213ms 3.2ms 1.1MB 200ms 0ms rustc 1.98.1
python 5-m.py 4266ms 218ms 18.4MB 7193ms 1040ms cpython 3.12.3
python 1.py 6168ms 31ms 10.1MB 6150ms 7ms cpython 3.12.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 17ms 0.0ms 2.4MB 37ms 0ms rustc 1.98.1
rust 5-m.rs 18ms 1.3ms 2.4MB 33ms 0ms rustc 1.98.1
rust 1c.rs 20ms 1.3ms 1.1MB 10ms 0ms rustc 1.98.1
rust 6.rs 21ms 1.0ms 1.1MB 10ms 0ms rustc 1.98.1
rust 1.rs 24ms 0.5ms 1.1MB 10ms 0ms rustc 1.98.1
python 1.py 648ms 13ms 10.1MB 633ms 3ms cpython 3.12.3
python 5-m.py 719ms 17ms 18.5MB 943ms 193ms cpython 3.12.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.6ms 0.3ms 1.9MB 0ms 0ms rustc 1.98.1
python 1.py 24ms 2.6ms 10.2MB 16ms 0ms cpython 3.12.3

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1-m.rs 402ms 47ms 74.0MB 273ms 500ms rustc 1.98.1
rust 2-m.rs 637ms 65ms 66.2MB 390ms 877ms rustc 1.98.1
rust 2-http2.rs 728ms 174ms 57.0MB 1683ms 507ms rustc 1.98.1
rust 1-http2.rs 737ms 86ms 68.5MB 1713ms 540ms rustc 1.98.1
python 1.py 2680ms 37ms 40.0MB 2783ms 1070ms cpython 3.12.3

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 129ms 6.7ms 17.4MB 43ms 57ms rustc 1.98.1
rust 2.rs 210ms 23ms 22.9MB 63ms 180ms rustc 1.98.1
rust 1-http2.rs 331ms 74ms 24.4MB 653ms 137ms rustc 1.98.1
rust 2-http2.rs 556ms 55ms 30.7MB 1503ms 173ms rustc 1.98.1
python 1.py 1650ms 27ms 34.6MB 1280ms 217ms cpython 3.12.3

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 38ms 0.7ms 7.9MB 27ms 0ms rustc 1.98.1
rust 5-i.rs 46ms 2.0ms 10.1MB 30ms 3ms rustc 1.98.1
rust 2.rs 76ms 0.4ms 33.8MB 57ms 3ms rustc 1.98.1
rust 3.rs 77ms 2.6ms 32.1MB 53ms 7ms rustc 1.98.1
rust 1.rs 114ms 0.6ms 68.3MB 80ms 20ms rustc 1.98.1
python 1.py 386ms 2.2ms 42.1MB 353ms 17ms cpython 3.12.3

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5-i.rs 234ms 9.0ms 54.1MB 207ms 13ms rustc 1.98.1
rust 4-i.rs 298ms 3.6ms 54.8MB 243ms 37ms rustc 1.98.1
rust 3.rs 417ms 2.9ms 239.2MB 343ms 60ms rustc 1.98.1
rust 2.rs 422ms 2.7ms 239.2MB 350ms 53ms rustc 1.98.1
rust 1.rs 697ms 6.0ms 551.3MB 507ms 177ms rustc 1.98.1
python 1.py 2449ms 9.2ms 224.6MB 2347ms 83ms cpython 3.12.3

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 475ms 19ms 27.6MB 1260ms 13ms rustc 1.98.1
rust 8.rs 838ms 32ms 23.8MB 810ms 10ms rustc 1.98.1
python 3-m.py 10152ms 192ms 39.2MB 38327ms 140ms cpython 3.12.3

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 62ms 6.2ms 16.3MB 140ms 3ms rustc 1.98.1
rust 8.rs 100ms 1.7ms 11.6MB 83ms 0ms rustc 1.98.1
python 3-m.py 1341ms 2.3ms 19.9MB 4197ms 93ms cpython 3.12.3

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 44ms 3.1ms 1.1MB 33ms 0ms rustc 1.98.1
rust 1.rs 70ms 7.9ms 1.1MB 60ms 0ms rustc 1.98.1
python 1.py 1596ms 22ms 13.1MB 1573ms 3ms cpython 3.12.3
python 2.py 1925ms 15ms 10.1MB 1907ms 3ms cpython 3.12.3

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 202ms 23ms 1.1MB 193ms 0ms rustc 1.98.1
rust 1.rs 280ms 31ms 1.1MB 270ms 0ms rustc 1.98.1
python 1.py 4622ms 61ms 13.2MB 4603ms 3ms cpython 3.12.3
python 2.py 5717ms 152ms 10.2MB 5700ms 0ms cpython 3.12.3

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 28ms 0.2ms 1.2MB 20ms 0ms rustc 1.98.1
rust 1.rs 46ms 2.5ms 1.1MB 37ms 0ms rustc 1.98.1
python 1.py 773ms 12ms 13.1MB 760ms 0ms cpython 3.12.3
python 2.py 941ms 8.5ms 10.1MB 927ms 0ms cpython 3.12.3

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1084ms 8.3ms 33.8MB 1060ms 10ms rustc 1.98.1
python 1.py 34848ms 576ms 107.3MB 34757ms 73ms cpython 3.12.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 212ms 3.5ms 9.8MB 197ms 0ms rustc 1.98.1
python 1.py 5815ms 33ms 34.4MB 5790ms 7ms cpython 3.12.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 221ms 1.1ms 1.1MB 210ms 0ms rustc 1.98.1
rust 7-i.rs 333ms 4.8ms 1.1MB 320ms 0ms rustc 1.98.1
rust 1.rs 361ms 3.0ms 1.1MB 350ms 0ms rustc 1.98.1
rust 2.rs 484ms 2.9ms 1.1MB 473ms 0ms rustc 1.98.1
python 1.py 39068ms 95ms 10.2MB 39050ms 0ms cpython 3.12.3
python 2.py 41152ms 307ms 11.3MB 41133ms 0ms cpython 3.12.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 24ms 0.3ms 1.1MB 17ms 0ms rustc 1.98.1
rust 7-i.rs 36ms 0.4ms 1.1MB 23ms 0ms rustc 1.98.1
rust 1.rs 39ms 0.7ms 1.1MB 30ms 0ms rustc 1.98.1
rust 2.rs 52ms 0.8ms 1.1MB 43ms 0ms rustc 1.98.1
python 1.py 3811ms 20ms 10.2MB 3797ms 0ms cpython 3.12.3
python 2.py 4147ms 89ms 10.2MB 4137ms 0ms cpython 3.12.3

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 656ms 18ms 6.6MB 640ms 0ms rustc 1.98.1
rust 1.rs 1035ms 16ms 40.8MB 1010ms 10ms rustc 1.98.1
python 2.py 6899ms 14ms 635.1MB 6690ms 190ms cpython 3.12.3
python 1.py 16789ms 193ms 322.8MB 16707ms 63ms cpython 3.12.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 129ms 12ms 2.8MB 117ms 0ms rustc 1.98.1
rust 1.rs 212ms 36ms 11.7MB 193ms 0ms rustc 1.98.1
python 2.py 1734ms 18ms 166.4MB 1677ms 43ms cpython 3.12.3
python 1.py 3963ms 65ms 88.2MB 3933ms 10ms cpython 3.12.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 2314ms 44ms 2.8MB 2230ms 70ms rustc 1.98.1
python 4.py 3045ms 90ms 10.4MB 3027ms 3ms cpython 3.12.3
rust 1.rs 10361ms 53ms 3.3MB 8747ms 1587ms rustc 1.98.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 506ms 4.3ms 2.5MB 493ms 0ms rustc 1.98.1
python 4.py 733ms 3.8ms 10.1MB 720ms 0ms cpython 3.12.3
rust 1.rs 1997ms 8.8ms 2.8MB 1823ms 157ms rustc 1.98.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 594ms 1.7ms 80.5MB 683ms 7ms rustc 1.98.1
python 1.py 6857ms 32ms 212.7MB 6743ms 103ms cpython 3.12.3

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 69ms 1.7ms 11.0MB 63ms 0ms rustc 1.98.1
python 1.py 793ms 3.6ms 32.5MB 763ms 10ms cpython 3.12.3

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 177ms 4.7ms 1.1MB 167ms 0ms rustc 1.98.1
rust 1.rs 2238ms 23ms 1.1MB 2223ms 0ms rustc 1.98.1
python 1.py 5558ms 72ms 10.2MB 5540ms 3ms cpython 3.12.3

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0.rs 46ms 1.1ms 1.1MB 37ms 0ms rustc 1.98.1
rust 1.rs 562ms 1.3ms 1.1MB 550ms 0ms rustc 1.98.1
python 1.py 1450ms 63ms 10.2MB 1433ms 3ms cpython 3.12.3

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 3024ms 23ms 2.2MB 11890ms 10ms rustc 1.98.1
rust 7.rs 5535ms 8.5ms 1.1MB 5527ms 0ms rustc 1.98.1
rust 2-m.rs 5819ms 1.9ms 2.4MB 22997ms 13ms rustc 1.98.1
rust 2.rs 11036ms 18ms 2.1MB 11023ms 0ms rustc 1.98.1
python 8.py timeout (300s) — — — — cpython 3.12.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 747ms 2.9ms 1.1MB 2903ms 7ms rustc 1.98.1
rust 7.rs 1386ms 2.3ms 1.1MB 1377ms 0ms rustc 1.98.1
rust 2-m.rs 1459ms 0.7ms 3.1MB 5733ms 3ms rustc 1.98.1
rust 2.rs 2762ms 2.0ms 1.1MB 2750ms 0ms rustc 1.98.1
python 8.py timeout (120s) — — — — cpython 3.12.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 189ms 0.4ms 3.1MB 697ms 3ms rustc 1.98.1
rust 7.rs 351ms 1.2ms 1.1MB 340ms 0ms rustc 1.98.1
rust 2-m.rs 368ms 0.3ms 1.2MB 1410ms 3ms rustc 1.98.1
rust 2.rs 693ms 2.4ms 1.1MB 680ms 0ms rustc 1.98.1
python 8-m.py 34942ms 580ms 20.5MB 135877ms 227ms cpython 3.12.3