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.

acton tip VS D 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
acton-tip 1-m.act 2062ms 22ms 38.6MB 3160ms 73ms acton 0.30.0.20260927.9.45
d 1.d 2842ms 6.4ms 312.7MB 2810ms 20ms ldc2 1.43.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 201ms 14ms 9.5MB 250ms 10ms acton 0.30.0.20260927.9.45
d 1.d 304ms 39ms 209.6MB 270ms 20ms ldc2 1.43.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1-m.act 14328ms 234ms 7.6MB 18857ms 13917ms acton 0.30.0.20260927.9.45
d 1.d 36420ms 328ms 25.7MB 36310ms 93ms ldc2 1.43.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1-m.act 882ms 3.4ms 12.3MB 1173ms 810ms acton 0.30.0.20260927.9.45
d 1.d 1418ms 8.4ms 8.6MB 1397ms 3ms ldc2 1.43.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 270ms 7.0ms 7.4MB 257ms 17ms acton 0.30.0.20260927.9.45
d 1.d 5463ms 8.6ms 8.0MB 5450ms 0ms ldc2 1.43.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 92ms 11ms 13.3MB 80ms 10ms acton 0.30.0.20260927.9.45
d 1.d 920ms 1.5ms 7.4MB 907ms 0ms ldc2 1.43.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 2960ms 29ms 3.6MB 11460ms 7ms ldc2 1.43.0
d 1.d 3699ms 15ms 1.7MB 3687ms 0ms ldc2 1.43.0
d 2-im.d 4985ms 52ms 3.6MB 19437ms 3ms ldc2 1.43.0
d 1-i.d 5554ms 44ms 1.6MB 5540ms 0ms ldc2 1.43.0
d 2-i.d 9897ms 21ms 1.7MB 9883ms 0ms ldc2 1.43.0
acton-tip 1.act 23248ms 106ms 4.0MB 27317ms 7127ms acton 0.30.0.20260927.9.45

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 254ms 4.0ms 3.8MB 907ms 0ms ldc2 1.43.0
d 1.d 307ms 4.0ms 1.6MB 293ms 0ms ldc2 1.43.0
d 2-im.d 408ms 2.5ms 3.6MB 1517ms 0ms ldc2 1.43.0
d 1-i.d 473ms 4.7ms 1.7MB 463ms 0ms ldc2 1.43.0
d 2-i.d 820ms 0.7ms 1.7MB 807ms 0ms ldc2 1.43.0
acton-tip 1.act 1836ms 15ms 4.3MB 2147ms 547ms acton 0.30.0.20260927.9.45

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 254ms 5.5ms 1.7MB 240ms 0ms ldc2 1.43.0
acton-tip 1.act 1163ms 17ms 13.2MB 1090ms 167ms acton 0.30.0.20260927.9.45

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 30ms 3.8ms 1.7MB 23ms 0ms ldc2 1.43.0
acton-tip 1.act 141ms 7.0ms 21.2MB 120ms 17ms acton 0.30.0.20260927.9.45

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2.4ms 0.4ms 3.2MB 0ms 0ms ldc2 1.43.0
acton-tip 1.act 3.9ms 0.4ms 5.9MB 0ms 0ms acton 0.30.0.20260927.9.45

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1-m.act 287ms 8.3ms 6.3MB 553ms 150ms acton 0.30.0.20260927.9.45

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 105ms 12ms 6.4MB 80ms 37ms acton 0.30.0.20260927.9.45

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 95ms 1.7ms 15.9MB 103ms 0ms ldc2 1.43.0
acton-tip 1.act 117ms 9.3ms 50.9MB 157ms 13ms acton 0.30.0.20260927.9.45

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1-m.act 895ms 36ms 338.8MB 1890ms 70ms acton 0.30.0.20260927.9.45
d 2.d 915ms 82ms 150.2MB 880ms 27ms ldc2 1.43.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 1028ms 32ms 44.3MB 3027ms 13ms ldc2 1.43.0
acton-tip 1.act 45269ms 137ms 177.1MB 60153ms 433ms acton 0.30.0.20260927.9.45

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 136ms 9.7ms 37.2MB 347ms 3ms ldc2 1.43.0
acton-tip 1.act 4678ms 30ms 67.7MB 6573ms 183ms acton 0.30.0.20260927.9.45

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 149ms 2.1ms 6.8MB 143ms 0ms ldc2 1.43.0
acton-tip 1.act 897ms 19ms 5.1MB 1170ms 130ms acton 0.30.0.20260927.9.45

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 437ms 6.1ms 7.9MB 440ms 0ms ldc2 1.43.0
acton-tip 1.act 2718ms 73ms 5.2MB 3570ms 470ms acton 0.30.0.20260927.9.45

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 66ms 3.1ms 6.1MB 57ms 0ms ldc2 1.43.0
acton-tip 1.act 439ms 8.1ms 4.0MB 517ms 113ms acton 0.30.0.20260927.9.45

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 511ms 11ms 7.1MB 500ms 0ms ldc2 1.43.0
acton-tip 1.act 2725ms 11ms 13.6MB 2797ms 33ms acton 0.30.0.20260927.9.45

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 26ms 2.0ms 1.7MB 17ms 0ms ldc2 1.43.0
acton-tip 1.act 121ms 1.5ms 12.1MB 110ms 7ms acton 0.30.0.20260927.9.45

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1511ms 7.3ms 312.8MB 1477ms 30ms ldc2 1.43.0
acton-tip 1.act 4386ms 4.2ms 83.6MB 5510ms 60ms acton 0.30.0.20260927.9.45

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 323ms 3.5ms 312.6MB 277ms 37ms ldc2 1.43.0
acton-tip 1.act 979ms 13ms 23.2MB 1220ms 37ms acton 0.30.0.20260927.9.45

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 592ms 1.6ms 1.6MB 577ms 0ms ldc2 1.43.0
d 2.d 594ms 2.9ms 1.7MB 583ms 0ms ldc2 1.43.0
acton-tip 1.act 1280ms 12ms 4.0MB 1340ms 107ms acton 0.30.0.20260927.9.45

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 64ms 0.8ms 1.7MB 50ms 0ms ldc2 1.43.0
d 2.d 75ms 2.5ms 1.8MB 63ms 0ms ldc2 1.43.0
acton-tip 1.act 134ms 1.8ms 4.0MB 130ms 10ms acton 0.30.0.20260927.9.45

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 967ms 5.7ms 43.2MB 943ms 10ms ldc2 1.43.0
d 2.d 1100ms 6.3ms 48.1MB 1080ms 0ms ldc2 1.43.0
acton-tip 1.act 3013ms 34ms 561.4MB 3360ms 73ms acton 0.30.0.20260927.9.45

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 171ms 1.6ms 14.1MB 157ms 0ms ldc2 1.43.0
d 2.d 236ms 2.0ms 15.3MB 220ms 0ms ldc2 1.43.0
acton-tip 1.act 715ms 1.0ms 157.3MB 733ms 27ms acton 0.30.0.20260927.9.45

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3332ms 74ms 8.1MB 3360ms 47ms ldc2 1.43.0
acton-tip 1-m.act 3543ms 38ms 8.2MB 4797ms 1453ms acton 0.30.0.20260927.9.45

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 792ms 3.6ms 8.1MB 790ms 10ms ldc2 1.43.0
acton-tip 1-m.act 893ms 20ms 7.3MB 1113ms 420ms acton 0.30.0.20260927.9.45

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 806ms 71ms 170.2MB 1080ms 30ms ldc2 1.43.0
acton-tip 1-m.act 91253ms 1460ms 708.4MB 199957ms 1813ms acton 0.30.0.20260927.9.45

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 82ms 1.9ms 22.4MB 93ms 3ms ldc2 1.43.0
acton-tip 1-m.act 7551ms 187ms 122.9MB 14893ms 500ms acton 0.30.0.20260927.9.45

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 4706ms 37ms 4.0MB 5240ms 853ms acton 0.30.0.20260927.9.45
d 1.d 6977ms 15ms 4.0MB 6983ms 33ms ldc2 1.43.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
acton-tip 1.act 1195ms 8.5ms 4.0MB 1330ms 203ms acton 0.30.0.20260927.9.45
d 1.d 1766ms 12ms 4.0MB 1760ms 3ms ldc2 1.43.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 11045ms 7.1ms 3.9MB 11033ms 0ms ldc2 1.43.0
acton-tip 1.act 11288ms 25ms 5.8MB 11283ms 3ms acton 0.30.0.20260927.9.45

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2767ms 0.6ms 3.6MB 2760ms 0ms ldc2 1.43.0
acton-tip 1.act 2892ms 8.2ms 4.8MB 2887ms 0ms acton 0.30.0.20260927.9.45

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 701ms 11ms 3.2MB 693ms 0ms ldc2 1.43.0
acton-tip 1.act 737ms 7.4ms 12.2MB 730ms 0ms acton 0.30.0.20260927.9.45