Programming Language and compiler
Benchmarks

C++ VS Javascript 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.)

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 395ms 6.0ms 2.6MB 1533ms 0ms g++ 11.4.0
cpp 1-im.cpp 402ms 7.0ms 3.9MB 1557ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 39ms 0.3ms 2.6MB 130ms 0ms g++ 11.4.0
cpp 1-im.cpp 42ms 1.6ms 4.0MB 133ms 0ms clang++ 14.0.0-1ubuntu1.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.0ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.4ms 0.2ms 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 33ms 1.9ms 50.9MB 18ms 8ms node 24.2.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.4ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 172ms 0.2ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 316ms 2.1ms 1.9MB 307ms 0ms g++ 11.4.0
cpp 1.cpp 320ms 4.3ms 2.3MB 313ms 0ms clang++ 14.0.0-1ubuntu1.1
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
cpp 0-i.cpp 19ms 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 0.5ms 2.3MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.5ms 1.8MB 30ms 0ms g++ 11.4.0
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

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 483ms 1.2ms 7.3MB 477ms 0ms g++ 11.4.0
cpp 1.cpp 531ms 2.7ms 7.8MB 520ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 121ms 1.0ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 133ms 0.6ms 4.1MB 127ms 0ms clang++ 14.0.0-1ubuntu1.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 468ms 0.9ms 3.5MB 1820ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 493ms 18ms 2.1MB 1913ms 0ms g++ 11.4.0
cpp 6-im.cpp 927ms 13ms 2.1MB 3633ms 0ms g++ 11.4.0
cpp 6-im.cpp 952ms 38ms 3.5MB 3693ms 3ms clang++ 14.0.0-1ubuntu1.1
javascript 6-m.js 2170ms 4.5ms 118.6MB 8280ms 63ms node 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 123ms 0.3ms 3.3MB 457ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 129ms 0.4ms 2.0MB 480ms 0ms g++ 11.4.0
cpp 6-im.cpp 238ms 0.6ms 3.4MB 900ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 239ms 1.1ms 2.0MB 920ms 0ms g++ 11.4.0
javascript 6-m.js 654ms 2.1ms 118.9MB 2317ms 63ms node 24.2.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 39ms 0.2ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 8-m.cpp 46ms 13ms 3.4MB 127ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 66ms 0.5ms 3.4MB 223ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 67ms 0.6ms 2.1MB 240ms 0ms g++ 11.4.0
javascript 6-m.js 271ms 4.8ms 115.9MB 830ms 53ms node 24.2.0