Programming Language and compiler
Benchmarks

D VS Javascript benchmarks

Current benchmark data was generated on Tue Jul 01 2025, 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
javascript 1-m.js 998ms 4.7ms 166.9MB 1570ms 240ms bun 1.2.17
javascript 1.js 1086ms 11ms 469.4MB 990ms 243ms node 24.3.0
d 1.d 2206ms 5.4ms 312.8MB 2170ms 43ms ldc2 1.41.0
d 1.d 3040ms 21ms 314.5MB 3210ms 57ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 99ms 2.6ms 77.4MB 80ms 23ms bun 1.2.17
javascript 1.js 131ms 1.8ms 80.9MB 130ms 33ms node 24.3.0
d 1.d 207ms 3.1ms 207.9MB 183ms 13ms ldc2 1.41.0
d 1.d 262ms 1.5ms 210.9MB 233ms 13ms dmd 2.111.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1757ms 89ms 189.8MB 1723ms 107ms node 24.3.0
javascript 1.js 2594ms 93ms 107.1MB 2637ms 73ms bun 1.2.17
d 1.d timeout 0.0ms 16.5MB 4957ms 30ms dmd 2.111.0
d 1.d timeout 0.0ms 16.6MB 4963ms 23ms ldc2 1.41.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 164ms 4.1ms 75.2MB 150ms 20ms node 24.3.0
javascript 1.js 206ms 4.1ms 89.2MB 253ms 33ms bun 1.2.17
d 1.d 1049ms 6.5ms 10.3MB 1020ms 17ms ldc2 1.41.0
d 1.d 1387ms 5.6ms 12.1MB 1367ms 10ms dmd 2.111.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 276ms 3.2ms 67.8MB 300ms 23ms node 24.3.0
javascript 1.js 522ms 4.3ms 76.1MB 493ms 20ms bun 1.2.17
d 1.d 2551ms 3.5ms 8.0MB 2540ms 0ms ldc2 1.41.0
d 1.d 2871ms 10ms 10.5MB 2860ms 0ms dmd 2.111.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 141ms 2.7ms 63.5MB 127ms 23ms node 24.3.0
d 1.d 444ms 2.0ms 8.1MB 437ms 0ms ldc2 1.41.0
javascript 1.js 498ms 2.2ms 65.5MB 477ms 13ms bun 1.2.17
d 1.d 517ms 1.2ms 10.5MB 510ms 0ms dmd 2.111.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 373ms 5.6ms 3.1MB 1427ms 0ms ldc2 1.41.0
d 2-im.d 1114ms 9.3ms 3.0MB 4320ms 0ms ldc2 1.41.0
d 1-i.d 1488ms 1.7ms 2.9MB 1480ms 0ms ldc2 1.41.0
d 1.d 3143ms 19ms 2.9MB 3130ms 0ms ldc2 1.41.0
d 2-i.d 3232ms 3.6ms 2.9MB 3223ms 0ms ldc2 1.41.0
d 1.d 3544ms 3.7ms 4.6MB 3533ms 0ms dmd 2.111.0
d 1-im.d 4461ms 9.7ms 5.3MB 17560ms 0ms dmd 2.111.0
d 1-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
d 2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.111.0
d 2-im.d timeout 0.0ms 4.9MB 19740ms 20ms dmd 2.111.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 36ms 0.9ms 3.1MB 110ms 0ms ldc2 1.41.0
d 2-im.d 98ms 1.6ms 3.0MB 347ms 0ms ldc2 1.41.0
d 1-i.d 124ms 0.3ms 2.9MB 120ms 0ms ldc2 1.41.0
d 1.d 265ms 3.5ms 2.9MB 257ms 0ms ldc2 1.41.0
d 2-i.d 266ms 1.0ms 2.9MB 260ms 0ms ldc2 1.41.0
d 1.d 300ms 2.1ms 4.6MB 290ms 0ms dmd 2.111.0
d 1-im.d 402ms 34ms 4.8MB 1410ms 0ms dmd 2.111.0
d 2-im.d 524ms 3.0ms 4.9MB 2003ms 0ms dmd 2.111.0
d 1-i.d 887ms 8.9ms 4.5MB 877ms 0ms dmd 2.111.0
d 2-i.d 1393ms 4.6ms 4.5MB 1383ms 0ms dmd 2.111.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 109ms 0.2ms 2.9MB 100ms 0ms ldc2 1.41.0
d 1.d 641ms 3.8ms 4.9MB 630ms 0ms dmd 2.111.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 14ms 1.5ms 3.0MB 10ms 0ms ldc2 1.41.0
d 1.d 68ms 0.9ms 4.8MB 60ms 0ms dmd 2.111.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1.7ms 0.1ms 3.0MB 0ms 0ms ldc2 1.41.0
d 1.d 2.2ms 0.1ms 5.1MB 0ms 0ms dmd 2.111.0
javascript 1.js 13ms 0.5ms 31.3MB 0ms 0ms bun 1.2.17
javascript 1.js 32ms 0.5ms 50.6MB 18ms 6ms node 24.3.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 59ms 1.7ms 15.7MB 63ms 7ms ldc2 1.41.0
javascript 1.js 67ms 4.2ms 62.6MB 40ms 13ms bun 1.2.17
javascript 1.js 105ms 2.0ms 75.5MB 87ms 23ms node 24.3.0
d 2.d 241ms 3.0ms 22.5MB 247ms 3ms dmd 2.111.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 354ms 14ms 200.8MB 310ms 83ms bun 1.2.17
d 2.d 483ms 11ms 140.4MB 450ms 37ms ldc2 1.41.0
javascript 1.js 572ms 2.1ms 254.7MB 597ms 113ms node 24.3.0
d 2.d 2474ms 16ms 158.3MB 2490ms 33ms dmd 2.111.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 713ms 31ms 47.5MB 2403ms 10ms ldc2 1.41.0
d 1-m.d 2035ms 101ms 50.6MB 6757ms 17ms dmd 2.111.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 100ms 4.7ms 39.5MB 263ms 10ms ldc2 1.41.0
d 1-m.d 257ms 16ms 41.0MB 737ms 17ms dmd 2.111.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 130ms 1.9ms 5.9MB 120ms 0ms ldc2 1.41.0
d 1.d 178ms 3.2ms 7.9MB 167ms 3ms dmd 2.111.0
javascript 2.js 308ms 1.2ms 65.1MB 300ms 10ms node 24.3.0
javascript 1.js 574ms 4.2ms 63.1MB 560ms 10ms node 24.3.0
javascript 2.js 676ms 3.1ms 123.0MB 750ms 50ms bun 1.2.17
javascript 1.js 842ms 16ms 106.1MB 943ms 70ms bun 1.2.17

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 385ms 2.3ms 5.9MB 370ms 17ms ldc2 1.41.0
d 1.d 520ms 2.3ms 7.9MB 513ms 13ms dmd 2.111.0
javascript 2.js 840ms 2.8ms 71.5MB 827ms 13ms node 24.3.0
javascript 1.js 1632ms 5.6ms 69.8MB 1613ms 17ms node 24.3.0
javascript 2.js 1912ms 1.7ms 123.4MB 2090ms 80ms bun 1.2.17
javascript 1.js 2440ms 16ms 106.0MB 2740ms 170ms bun 1.2.17

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 58ms 1.2ms 5.9MB 50ms 0ms ldc2 1.41.0
d 1.d 79ms 1.3ms 8.1MB 67ms 0ms dmd 2.111.0
javascript 2.js 164ms 1.8ms 59.0MB 160ms 3ms node 24.3.0
javascript 1.js 171ms 1.6ms 60.4MB 160ms 7ms node 24.3.0
javascript 1.js 328ms 1.8ms 130.1MB 367ms 80ms bun 1.2.17
javascript 2.js 376ms 2.2ms 125.0MB 407ms 53ms bun 1.2.17

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 367ms 0.5ms 7.5MB 360ms 0ms ldc2 1.41.0
d 1.d 2120ms 5.9ms 9.4MB 2107ms 0ms dmd 2.111.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 18ms 0.4ms 3.0MB 10ms 0ms ldc2 1.41.0
d 1.d 93ms 2.8ms 4.9MB 87ms 0ms dmd 2.111.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 483ms 5.4ms 139.7MB 633ms 127ms bun 1.2.17
javascript 1.js 598ms 14ms 230.0MB 600ms 117ms node 24.3.0
d 1.d 1134ms 3.1ms 312.6MB 1097ms 40ms ldc2 1.41.0
d 1.d 1870ms 15ms 314.9MB 2007ms 47ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 120ms 0.5ms 84.5MB 107ms 33ms bun 1.2.17
javascript 1.js 165ms 0.4ms 100.0MB 160ms 33ms node 24.3.0
d 1.d 232ms 1.5ms 312.8MB 190ms 30ms ldc2 1.41.0
d 1.d 361ms 4.2ms 314.8MB 330ms 30ms dmd 2.111.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 361ms 1.2ms 2.9MB 350ms 0ms ldc2 1.41.0
d 2.d 361ms 0.9ms 2.9MB 350ms 0ms ldc2 1.41.0
javascript 6.js 456ms 3.7ms 58.6MB 447ms 3ms node 24.3.0
javascript 6.js 602ms 8.9ms 45.0MB 607ms 3ms bun 1.2.17
d 1.d 677ms 14ms 4.8MB 667ms 0ms dmd 2.111.0
d 2.d 2033ms 5.4ms 4.8MB 2023ms 0ms dmd 2.111.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 39ms 0.6ms 2.9MB 30ms 0ms ldc2 1.41.0
d 2.d 39ms 0.7ms 2.9MB 30ms 0ms ldc2 1.41.0
d 1.d 71ms 1.2ms 4.6MB 60ms 0ms dmd 2.111.0
javascript 6.js 80ms 0.7ms 58.6MB 67ms 10ms node 24.3.0
javascript 6.js 82ms 1.0ms 45.0MB 87ms 3ms bun 1.2.17
d 2.d 210ms 1.7ms 4.8MB 200ms 0ms dmd 2.111.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 344ms 7.7ms 45.7MB 323ms 7ms ldc2 1.41.0
d 1.d 385ms 4.2ms 79.2MB 370ms 0ms dmd 2.111.0
d 2.d 854ms 0.6ms 49.7MB 833ms 10ms ldc2 1.41.0
d 2.d 1168ms 1.5ms 49.3MB 1150ms 10ms dmd 2.111.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 63ms 4.3ms 15.7MB 53ms 0ms ldc2 1.41.0
d 1.d 78ms 3.7ms 25.3MB 67ms 0ms dmd 2.111.0
d 2.d 211ms 1.2ms 17.8MB 200ms 0ms ldc2 1.41.0
d 2.d 297ms 1.9ms 19.7MB 280ms 0ms dmd 2.111.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2454ms 24ms 8.0MB 2420ms 417ms ldc2 1.41.0
d 1.d 4480ms 3.9ms 10.5MB 4400ms 500ms dmd 2.111.0
javascript 3.js timeout 0.0ms 122.6MB 4957ms 43ms node 24.3.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 587ms 3.4ms 8.1MB 567ms 103ms ldc2 1.41.0
d 1.d 1068ms 6.3ms 10.4MB 1033ms 127ms dmd 2.111.0
javascript 3.js 1089ms 1.6ms 73.5MB 1063ms 20ms node 24.3.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 584ms 5.1ms 172.3MB 770ms 20ms ldc2 1.41.0
d 3.d 1204ms 8.1ms 177.4MB 1390ms 27ms dmd 2.111.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 3.d 63ms 1.5ms 28.5MB 70ms 0ms ldc2 1.41.0
d 3.d 126ms 0.1ms 31.6MB 133ms 3ms dmd 2.111.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2471ms 0.4ms 61.3MB 2477ms 17ms node 24.3.0
javascript 1.js 2830ms 8.0ms 82.4MB 2850ms 53ms bun 1.2.17
d 1.d 4780ms 18ms 4.1MB 4747ms 363ms ldc2 1.41.0
d 1.d timeout 0.0ms 6.5MB 4950ms 303ms dmd 2.111.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 668ms 7.5ms 60.1MB 673ms 13ms node 24.3.0
javascript 1.js 744ms 7.5ms 81.8MB 747ms 30ms bun 1.2.17
d 1.d 1200ms 1.8ms 3.9MB 1177ms 93ms ldc2 1.41.0
d 1.d 2059ms 9.1ms 6.5MB 2030ms 123ms dmd 2.111.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2192ms 31ms 119.8MB 8330ms 63ms node 24.3.0
d 1.d 3599ms 3.4ms 4.0MB 3590ms 0ms ldc2 1.41.0
d 1.d 3649ms 20ms 5.9MB 3640ms 0ms dmd 2.111.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 668ms 9.4ms 118.0MB 2350ms 63ms node 24.3.0
d 1.d 903ms 2.0ms 3.5MB 893ms 0ms ldc2 1.41.0
d 1.d 917ms 3.9ms 5.3MB 907ms 0ms dmd 2.111.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 229ms 1.7ms 3.1MB 220ms 0ms ldc2 1.41.0
d 1.d 233ms 0.2ms 5.0MB 220ms 0ms dmd 2.111.0
javascript 6-m.js 278ms 3.8ms 114.6MB 847ms 60ms node 24.3.0