Programming Language and compiler
Benchmarks

Javascript VS C++ 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

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

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

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

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

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
javascript 1.js 498ms 2.2ms 65.5MB 477ms 13ms bun 1.2.17

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.3ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
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

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1-m.bun.js 277ms 13ms 77.4MB 143ms 353ms bun 1.2.17
javascript 1.js 2535ms 256ms 271.4MB 2460ms 1170ms node 24.3.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
javascript 1.bun.js 91ms 8.2ms 55.1MB 33ms 77ms bun 1.2.17
javascript 1.js 353ms 2.0ms 85.0MB 350ms 120ms node 24.3.0

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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

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
javascript 1.js 572ms 2.1ms 254.7MB 597ms 113ms node 24.3.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
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
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

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

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

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.3ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 314ms 1.2ms 1.8MB 307ms 0ms g++ 11.4.0
cpp 1.cpp 315ms 0.6ms 2.3MB 310ms 0ms clang++ 14.0.0-1ubuntu1.1
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

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 18ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 19ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.4ms 1.9MB 30ms 0ms g++ 11.4.0
cpp 1.cpp 34ms 0.6ms 2.3MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1
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

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

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

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
javascript 3.js 1089ms 1.6ms 73.5MB 1063ms 20ms node 24.3.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 467ms 0.8ms 3.4MB 1817ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 482ms 0.4ms 2.1MB 1880ms 0ms g++ 11.4.0
cpp 6-im.cpp 918ms 0.6ms 3.4MB 3613ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 921ms 1.9ms 2.1MB 3627ms 0ms g++ 11.4.0
javascript 6-m.js 2192ms 31ms 119.8MB 8330ms 63ms node 24.3.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 125ms 2.9ms 3.4MB 463ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 129ms 0.3ms 2.0MB 480ms 0ms g++ 11.4.0
cpp 6-im.cpp 240ms 2.4ms 2.0MB 913ms 0ms g++ 11.4.0
cpp 6-im.cpp 248ms 20ms 3.4MB 927ms 0ms clang++ 14.0.0-1ubuntu1.1
javascript 6-m.js 668ms 9.4ms 118.0MB 2350ms 63ms node 24.3.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 39ms 0.6ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 8-m.cpp 40ms 7.9ms 3.5MB 117ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 64ms 0.4ms 3.4MB 223ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 69ms 3.9ms 2.3MB 247ms 0ms g++ 11.4.0
javascript 6-m.js 278ms 3.8ms 114.6MB 847ms 60ms node 24.3.0