Programming Language and compiler
Benchmarks

C++ VS V benchmarks

Current benchmark data was generated on Mon May 19 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 401ms 4.9ms 2.6MB 1543ms 0ms g++ 11.4.0
cpp 1-im.cpp 402ms 3.2ms 3.9MB 1557ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 2222ms 13ms 1.9MB 2210ms 0ms v/clang+gc 0.4.10
v 1.v 2254ms 3.3ms 1.1MB 2247ms 0ms v/clang 0.4.10

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 41ms 1.6ms 2.5MB 133ms 0ms g++ 11.4.0
cpp 1-im.cpp 42ms 1.5ms 3.9MB 137ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 186ms 0.2ms 1.9MB 180ms 0ms v/clang+gc 0.4.10
v 1.v 193ms 1.4ms 1.3MB 183ms 0ms v/clang 0.4.10

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.10
cpp 1.cpp 1.0ms 0.0ms 1.4MB 0ms 0ms g++ 11.4.0
v 1.v 1.2ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 1.3ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.5ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 171ms 0.2ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 310ms 0.2ms 1.6MB 300ms 0ms v/clang 0.4.10
v 1.v 312ms 1.4ms 2.3MB 303ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 313ms 0.2ms 1.8MB 303ms 0ms g++ 11.4.0
cpp 1.cpp 331ms 25ms 2.3MB 323ms 0ms clang++ 14.0.0-1ubuntu1.1

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
v 1.v 33ms 0.3ms 1.6MB 23ms 0ms v/clang 0.4.10
cpp 1.cpp 34ms 0.4ms 1.8MB 30ms 0ms g++ 11.4.0
v 1.v 34ms 0.6ms 2.3MB 30ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 34ms 0.3ms 2.3MB 30ms 0ms clang++ 14.0.0-1ubuntu1.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 297ms 4.2ms 60.6MB 283ms 0ms v/clang+gc 0.4.10
v 1.v 297ms 4.5ms 40.3MB 280ms 0ms v/clang 0.4.10
v 2.v 328ms 0.5ms 6.9MB 320ms 0ms v/clang+gc 0.4.10
v 2.v 332ms 1.3ms 6.1MB 320ms 0ms v/clang 0.4.10
cpp 1.cpp 494ms 10ms 7.3MB 483ms 0ms g++ 11.4.0
cpp 1.cpp 529ms 1.4ms 7.7MB 520ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 58ms 1.3ms 11.9MB 50ms 0ms v/clang+gc 0.4.10
v 1.v 58ms 3.1ms 11.0MB 50ms 0ms v/clang 0.4.10
v 2.v 82ms 0.8ms 3.1MB 70ms 0ms v/clang+gc 0.4.10
v 2.v 82ms 1.9ms 2.4MB 73ms 0ms v/clang 0.4.10
cpp 1.cpp 121ms 1.4ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 132ms 0.8ms 4.1MB 120ms 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 470ms 2.9ms 3.4MB 1823ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 483ms 0.4ms 2.1MB 1880ms 0ms g++ 11.4.0
cpp 6-im.cpp 925ms 8.4ms 2.3MB 3630ms 0ms g++ 11.4.0
cpp 6-im.cpp 926ms 13ms 3.4MB 3623ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.10
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 124ms 0.4ms 3.4MB 460ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 128ms 1.3ms 2.0MB 477ms 0ms g++ 11.4.0
cpp 6-im.cpp 238ms 1.4ms 3.4MB 907ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 253ms 24ms 2.0MB 953ms 0ms g++ 11.4.0
v 1.v 1285ms 1.0ms 1.5MB 1280ms 0ms v/clang 0.4.10
v 1.v 1299ms 3.2ms 2.5MB 1290ms 0ms v/clang+gc 0.4.10

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 40ms 0.5ms 2.0MB 133ms 0ms g++ 11.4.0
cpp 8-m.cpp 41ms 7.1ms 3.5MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 65ms 0.5ms 3.5MB 223ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 68ms 1.0ms 2.0MB 243ms 0ms g++ 11.4.0
v 1.v 324ms 1.0ms 1.5MB 313ms 0ms v/clang 0.4.10
v 1.v 328ms 1.2ms 2.5MB 320ms 0ms v/clang+gc 0.4.10