Programming Language and compiler
Benchmarks

Javascript VS D benchmarks

Current benchmark data was generated on Fri Aug 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 924ms 19ms 173.9MB 1400ms 193ms bun 1.2.19
javascript 1.js 1057ms 11ms 455.9MB 973ms 230ms node 24.4.1
d 1.d 2187ms 1.9ms 312.5MB 2160ms 33ms ldc2 1.41.0
d 1.d 3000ms 18ms 314.1MB 3163ms 50ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 99ms 1.4ms 76.3MB 80ms 23ms bun 1.2.19
javascript 1.js 128ms 0.9ms 81.6MB 127ms 23ms node 24.4.1
d 1.d 205ms 3.2ms 207.9MB 180ms 13ms ldc2 1.41.0
d 1.d 262ms 1.9ms 209.7MB 237ms 10ms 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 1682ms 32ms 189.9MB 1653ms 93ms node 24.4.1
javascript 1.js 2481ms 58ms 102.1MB 2540ms 57ms bun 1.2.19
d 1.d timeout 0.0ms 16.5MB 4970ms 17ms dmd 2.111.0
d 1.d timeout 0.0ms 17.5MB 4963ms 27ms ldc2 1.41.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 157ms 2.7ms 75.6MB 147ms 23ms node 24.4.1
javascript 1.js 198ms 3.5ms 86.8MB 240ms 33ms bun 1.2.19
d 1.d 1058ms 5.4ms 10.2MB 1033ms 10ms ldc2 1.41.0
d 1.d 1373ms 11ms 12.5MB 1350ms 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 280ms 5.6ms 67.8MB 290ms 27ms node 24.4.1
javascript 1.js 519ms 4.8ms 74.4MB 497ms 17ms bun 1.2.19
d 1.d 2555ms 1.6ms 8.1MB 2543ms 0ms ldc2 1.41.0
d 1.d 2870ms 7.3ms 10.4MB 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 125ms 1.2ms 64.0MB 117ms 10ms node 24.4.1
d 1.d 443ms 3.2ms 8.1MB 430ms 0ms ldc2 1.41.0
javascript 1.js 508ms 2.5ms 63.9MB 487ms 17ms bun 1.2.19
d 1.d 517ms 0.4ms 10.5MB 510ms 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 1.6ms 0.1ms 2.9MB 0ms 0ms ldc2 1.41.0
d 1.d 2.0ms 0.2ms 5.1MB 0ms 0ms dmd 2.111.0
javascript 1.js 11ms 0.5ms 30.6MB 0ms 0ms bun 1.2.19
javascript 1.js 32ms 0.3ms 50.7MB 18ms 4ms node 24.4.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 261ms 2.3ms 73.4MB 127ms 327ms bun 1.2.19
javascript 1.js 2352ms 141ms 268.4MB 2327ms 1063ms node 24.4.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 95ms 13ms 53.6MB 33ms 80ms bun 1.2.19
javascript 1.js 344ms 5.6ms 85.4MB 330ms 123ms node 24.4.1

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 2.d 58ms 1.1ms 15.9MB 60ms 7ms ldc2 1.41.0
javascript 1.js 66ms 1.5ms 61.6MB 40ms 17ms bun 1.2.19
javascript 1.js 104ms 1.5ms 75.6MB 93ms 13ms node 24.4.1
d 2.d 237ms 2.6ms 22.6MB 240ms 7ms dmd 2.111.0

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 364ms 0.6ms 200.0MB 323ms 80ms bun 1.2.19
d 2.d 464ms 5.0ms 140.4MB 437ms 30ms ldc2 1.41.0
javascript 1.js 567ms 5.4ms 255.8MB 577ms 127ms node 24.4.1
d 2.d 2479ms 20ms 158.4MB 2493ms 37ms 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 1.7ms 6.1MB 120ms 0ms ldc2 1.41.0
d 1.d 176ms 2.3ms 8.1MB 163ms 7ms dmd 2.111.0
javascript 2.js 305ms 1.5ms 65.3MB 297ms 10ms node 24.4.1
javascript 1.js 565ms 1.0ms 63.8MB 550ms 10ms node 24.4.1
javascript 2.js 688ms 2.6ms 121.7MB 750ms 53ms bun 1.2.19
javascript 1.js 855ms 21ms 104.9MB 920ms 103ms bun 1.2.19

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 380ms 0.5ms 5.9MB 370ms 10ms ldc2 1.41.0
d 1.d 510ms 2.8ms 8.2MB 500ms 10ms dmd 2.111.0
javascript 2.js 833ms 3.5ms 72.3MB 820ms 10ms node 24.4.1
javascript 1.js 1619ms 0.4ms 70.7MB 1597ms 13ms node 24.4.1
javascript 2.js 1924ms 12ms 121.8MB 2100ms 67ms bun 1.2.19
javascript 1.js 2374ms 12ms 104.9MB 2657ms 173ms bun 1.2.19

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 57ms 1.3ms 5.9MB 50ms 0ms ldc2 1.41.0
d 1.d 79ms 0.2ms 7.9MB 70ms 0ms dmd 2.111.0
javascript 2.js 164ms 1.1ms 59.4MB 153ms 10ms node 24.4.1
javascript 1.js 170ms 5.4ms 60.8MB 153ms 10ms node 24.4.1
javascript 1.js 318ms 2.6ms 129.6MB 357ms 77ms bun 1.2.19
javascript 2.js 374ms 2.9ms 124.3MB 403ms 53ms bun 1.2.19

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.js 455ms 5.8ms 138.2MB 590ms 110ms bun 1.2.19
javascript 1.js 563ms 8.0ms 231.0MB 570ms 100ms node 24.4.1
d 1.d 1093ms 13ms 312.6MB 1057ms 37ms ldc2 1.41.0
d 1.d 1863ms 29ms 314.3MB 1990ms 47ms dmd 2.111.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 112ms 1.9ms 82.8MB 100ms 33ms bun 1.2.19
javascript 1.js 157ms 4.3ms 100.8MB 150ms 37ms node 24.4.1
d 1.d 227ms 2.7ms 312.5MB 193ms 20ms ldc2 1.41.0
d 1.d 359ms 1.1ms 315.0MB 323ms 27ms 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 0.5ms 2.9MB 350ms 0ms ldc2 1.41.0
d 2.d 361ms 1.4ms 2.9MB 350ms 0ms ldc2 1.41.0
javascript 6.js 460ms 3.5ms 59.2MB 447ms 10ms node 24.4.1
javascript 6.js 596ms 2.0ms 43.5MB 597ms 10ms bun 1.2.19
d 1.d 683ms 2.2ms 4.8MB 673ms 0ms dmd 2.111.0
d 2.d 2033ms 7.1ms 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 2.d 39ms 0.7ms 2.9MB 30ms 0ms ldc2 1.41.0
d 1.d 39ms 0.3ms 2.9MB 30ms 0ms ldc2 1.41.0
d 1.d 71ms 1.1ms 4.8MB 60ms 0ms dmd 2.111.0
javascript 6.js 79ms 0.9ms 43.5MB 80ms 3ms bun 1.2.19
javascript 6.js 79ms 2.5ms 58.8MB 67ms 7ms node 24.4.1
d 2.d 208ms 2.9ms 4.8MB 200ms 0ms dmd 2.111.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2503ms 15ms 61.5MB 2507ms 13ms node 24.4.1
javascript 1.js 2801ms 4.4ms 82.0MB 2817ms 47ms bun 1.2.19
d 1.d 4859ms 111ms 4.3MB 4827ms 367ms ldc2 1.41.0
d 1.d timeout 0.0ms 6.5MB 4960ms 297ms dmd 2.111.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 674ms 2.9ms 59.6MB 680ms 10ms node 24.4.1
javascript 1.js 741ms 2.7ms 81.0MB 740ms 30ms bun 1.2.19
d 1.d 1214ms 8.8ms 3.9MB 1190ms 100ms ldc2 1.41.0
d 1.d 2046ms 14ms 6.5MB 2037ms 100ms dmd 2.111.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2445ms 17ms 8.1MB 2407ms 423ms ldc2 1.41.0
d 1.d 4429ms 2.9ms 10.5MB 4383ms 463ms dmd 2.111.0
javascript 3.js 4600ms 4.2ms 123.2MB 4550ms 50ms node 24.4.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 582ms 3.3ms 8.2MB 557ms 110ms ldc2 1.41.0
javascript 3.js 1014ms 1.7ms 73.8MB 993ms 17ms node 24.4.1
d 1.d 1056ms 3.2ms 10.4MB 1033ms 110ms 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 2185ms 26ms 119.6MB 8307ms 67ms node 24.4.1
d 1.d 3597ms 3.2ms 6.2MB 3587ms 0ms ldc2 1.41.0
d 1.d 3655ms 25ms 8.4MB 3643ms 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 660ms 6.2ms 117.7MB 2340ms 50ms node 24.4.1
d 1.d 901ms 0.9ms 3.5MB 890ms 0ms ldc2 1.41.0
d 1.d 921ms 9.3ms 5.3MB 910ms 0ms dmd 2.111.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 228ms 1.4ms 3.3MB 220ms 0ms ldc2 1.41.0
d 1.d 233ms 1.9ms 7.2MB 220ms 0ms dmd 2.111.0
javascript 6-m.js 273ms 4.5ms 114.4MB 847ms 47ms node 24.4.1