Programming Language and compiler
Benchmarks

Javascript VS Dart benchmarks

Current benchmark data was generated on Mon Jun 23 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
dart 1.dart 728ms 5.9ms 81.0MB 700ms 33ms dart/exe 3.8.1
javascript 1-m.js 947ms 18ms 176.8MB 1447ms 207ms bun 1.2.17
javascript 1.js 1054ms 6.2ms 453.4MB 980ms 223ms node 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 77ms 1.2ms 42.9MB 53ms 17ms dart/exe 3.8.1
javascript 1.js 100ms 0.8ms 77.5MB 77ms 27ms bun 1.2.17
javascript 1.js 127ms 1.5ms 81.2MB 130ms 20ms node 24.2.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 1629ms 9.3ms 189.9MB 1603ms 103ms node 24.2.0
javascript 1.js 2507ms 85ms 101.4MB 2553ms 67ms bun 1.2.17
dart 1.dart 4903ms 31ms 19.4MB 5353ms 77ms dart/exe 3.8.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 158ms 2.0ms 75.4MB 140ms 23ms node 24.2.0
javascript 1.js 200ms 4.1ms 86.8MB 237ms 30ms bun 1.2.17
dart 1.dart 341ms 6.6ms 10.4MB 347ms 10ms dart/exe 3.8.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 302ms 4.5ms 67.7MB 320ms 23ms node 24.2.0
javascript 1.js 519ms 3.3ms 75.7MB 497ms 20ms bun 1.2.17
dart 1.dart 3601ms 12ms 18.0MB 3563ms 27ms dart/exe 3.8.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 136ms 13ms 64.5MB 120ms 17ms node 24.2.0
javascript 1.js 512ms 13ms 65.7MB 487ms 23ms bun 1.2.17
dart 1.dart 584ms 7.1ms 10.5MB 560ms 13ms dart/exe 3.8.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3.5ms 0.2ms 5.7MB 0ms 0ms dart/exe 3.8.1
javascript 1.js 13ms 0.5ms 31.3MB 0ms 0ms bun 1.2.17
javascript 1.js 33ms 1.9ms 50.9MB 18ms 8ms node 24.2.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 270ms 14ms 75.3MB 140ms 333ms bun 1.2.17
dart 2-m.dart 1290ms 24ms 94.6MB 1333ms 1373ms dart/exe 3.8.1
javascript 1.js 2465ms 105ms 269.7MB 2423ms 1127ms node 24.2.0
dart 1.dart 4416ms 92ms 97.4MB 1517ms 1573ms dart/exe 3.8.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 104ms 11ms 55.4MB 37ms 83ms bun 1.2.17
dart 2-m.dart 245ms 3.0ms 50.3MB 193ms 253ms dart/exe 3.8.1
javascript 1.js 375ms 26ms 85.9MB 360ms 133ms node 24.2.0
dart 1.dart 2265ms 50ms 50.3MB 173ms 250ms dart/exe 3.8.1

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 65ms 1.2ms 62.5MB 40ms 13ms bun 1.2.17
javascript 1.js 104ms 1.9ms 74.8MB 90ms 20ms node 24.2.0
dart 1.dart 165ms 2.9ms 54.5MB 137ms 20ms dart/exe 3.8.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 350ms 1.2ms 200.9MB 303ms 87ms bun 1.2.17
javascript 1.js 573ms 4.9ms 254.9MB 590ms 117ms node 24.2.0
dart 1.dart 1493ms 20ms 204.4MB 1723ms 127ms dart/exe 3.8.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 167ms 3.6ms 9.1MB 157ms 0ms dart/exe 3.8.1
javascript 2.js 305ms 0.7ms 65.3MB 293ms 10ms node 24.2.0
javascript 1.js 565ms 3.2ms 63.6MB 550ms 13ms node 24.2.0
dart 1.dart 572ms 8.2ms 8.8MB 560ms 0ms dart/exe 3.8.1
javascript 2.js 669ms 8.0ms 122.9MB 737ms 53ms bun 1.2.17
javascript 1.js 843ms 21ms 106.1MB 907ms 93ms bun 1.2.17

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 484ms 10.0ms 9.1MB 473ms 0ms dart/exe 3.8.1
javascript 2.js 835ms 6.9ms 71.9MB 820ms 17ms node 24.2.0
javascript 1.js 1619ms 16ms 70.0MB 1603ms 13ms node 24.2.0
dart 1.dart 1698ms 12ms 9.3MB 1683ms 7ms dart/exe 3.8.1
javascript 2.js 1893ms 6.7ms 123.5MB 2067ms 73ms bun 1.2.17
javascript 1.js 2431ms 36ms 105.9MB 2720ms 160ms bun 1.2.17

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 80ms 1.1ms 9.1MB 70ms 0ms dart/exe 3.8.1
dart 1.dart 119ms 0.3ms 9.1MB 110ms 0ms dart/exe 3.8.1
javascript 2.js 163ms 1.1ms 59.8MB 157ms 10ms node 24.2.0
javascript 1.js 166ms 2.3ms 61.0MB 150ms 10ms node 24.2.0
javascript 1.js 327ms 3.4ms 130.8MB 357ms 80ms bun 1.2.17
javascript 2.js 368ms 3.7ms 124.9MB 393ms 60ms bun 1.2.17

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 331ms 1.4ms 63.8MB 307ms 27ms dart/exe 3.8.1
javascript 1-m.js 473ms 10ms 137.8MB 617ms 117ms bun 1.2.17
javascript 1.js 565ms 6.5ms 230.7MB 567ms 110ms node 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 87ms 0.6ms 43.8MB 60ms 17ms dart/exe 3.8.1
javascript 1.js 116ms 2.9ms 84.8MB 100ms 33ms bun 1.2.17
javascript 1.js 160ms 2.6ms 101.3MB 157ms 40ms node 24.2.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 407ms 1.9ms 6.3MB 400ms 0ms dart/exe 3.8.1
javascript 6.js 456ms 0.7ms 59.0MB 450ms 0ms node 24.2.0
javascript 6.js 599ms 2.6ms 44.9MB 603ms 7ms bun 1.2.17

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 45ms 0.9ms 6.3MB 40ms 0ms dart/exe 3.8.1
javascript 6.js 79ms 1.4ms 58.9MB 63ms 10ms node 24.2.0
javascript 6.js 82ms 2.6ms 44.9MB 83ms 10ms bun 1.2.17

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 2530ms 12ms 61.9MB 2537ms 10ms node 24.2.0
javascript 1.js 2803ms 2.3ms 82.0MB 2810ms 60ms bun 1.2.17

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.js 704ms 57ms 60.1MB 707ms 10ms node 24.2.0
javascript 1.js 729ms 4.2ms 81.9MB 727ms 27ms bun 1.2.17

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 1248ms 6.4ms 14.8MB 1220ms 33ms dart/exe 3.8.1
javascript 3.js 4612ms 24ms 122.4MB 4567ms 43ms node 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 308ms 2.5ms 14.6MB 290ms 10ms dart/exe 3.8.1
javascript 3.js 1016ms 4.2ms 74.0MB 997ms 17ms node 24.2.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 2170ms 4.5ms 118.6MB 8280ms 63ms node 24.2.0
dart 1.dart 3762ms 11ms 6.4MB 3750ms 0ms dart/exe 3.8.1
dart 2.dart 4940ms 8.4ms 6.4MB 4930ms 0ms dart/exe 3.8.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 6-m.js 654ms 2.1ms 118.9MB 2317ms 63ms node 24.2.0
dart 1.dart 945ms 7.6ms 6.3MB 933ms 0ms dart/exe 3.8.1
dart 2.dart 1239ms 3.2ms 6.1MB 1227ms 0ms dart/exe 3.8.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 239ms 0.0ms 6.1MB 230ms 0ms dart/exe 3.8.1
javascript 6-m.js 271ms 4.8ms 115.9MB 830ms 53ms node 24.2.0
dart 2.dart 320ms 8.4ms 6.3MB 310ms 0ms dart/exe 3.8.1