Programming Language and compiler
Benchmarks

C++ VS V benchmarks

Current benchmark data was generated on Mon Apr 14 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 396ms 7.9ms 2.6MB 1530ms 0ms g++ 11.4.0
cpp 1-im.cpp 405ms 5.0ms 4.0MB 1567ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 2235ms 1.8ms 1.9MB 2223ms 0ms v/clang+gc 0.4.10
v 1.v 2259ms 4.6ms 1.1MB 2253ms 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 39ms 0.3ms 2.6MB 130ms 0ms g++ 11.4.0
cpp 1-im.cpp 39ms 0.2ms 3.9MB 130ms 0ms clang++ 14.0.0-1ubuntu1.1
v 1.v 190ms 2.6ms 1.9MB 180ms 0ms v/clang+gc 0.4.10
v 1.v 193ms 1.3ms 1.1MB 180ms 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 1.1ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
v 1.v 1.3ms 0.0ms 1.9MB 0ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 1.4ms 0.2ms 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 0.2ms 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
v 1.v 311ms 1.3ms 1.6MB 300ms 0ms v/clang 0.4.10
v 1.v 313ms 1.2ms 2.3MB 300ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 314ms 0.6ms 2.3MB 303ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 314ms 1.5ms 1.8MB 310ms 0ms g++ 11.4.0

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 0.5ms 1.6MB 30ms 0ms v/clang 0.4.10
v 1.v 34ms 0.4ms 2.3MB 30ms 0ms v/clang+gc 0.4.10
cpp 1.cpp 34ms 0.6ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.6ms 1.8MB 30ms 0ms g++ 11.4.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 301ms 2.5ms 40.2MB 287ms 0ms v/clang 0.4.10
v 1.v 307ms 2.3ms 41.1MB 297ms 0ms v/clang+gc 0.4.10
v 2.v 331ms 2.0ms 6.9MB 320ms 0ms v/clang+gc 0.4.10
v 2.v 332ms 2.6ms 6.1MB 320ms 0ms v/clang 0.4.10
cpp 1.cpp 489ms 5.4ms 7.3MB 477ms 0ms g++ 11.4.0
cpp 1.cpp 528ms 1.2ms 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
v 1.v 59ms 3.2ms 11.7MB 50ms 0ms v/clang+gc 0.4.10
v 1.v 59ms 1.2ms 11.0MB 50ms 0ms v/clang 0.4.10
v 2.v 82ms 1.6ms 3.1MB 73ms 0ms v/clang+gc 0.4.10
v 2.v 83ms 1.8ms 2.4MB 73ms 0ms v/clang 0.4.10
cpp 1.cpp 120ms 1.2ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 132ms 1.5ms 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 3.9ms 3.4MB 1817ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 483ms 0.5ms 2.1MB 1883ms 0ms g++ 11.4.0
cpp 6-im.cpp 927ms 14ms 3.5MB 3627ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 930ms 9.8ms 2.1MB 3640ms 0ms g++ 11.4.0
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 1.8ms 3.6MB 457ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 127ms 1.2ms 2.0MB 477ms 0ms g++ 11.4.0
cpp 6-im.cpp 237ms 0.4ms 3.4MB 903ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 239ms 0.7ms 2.0MB 917ms 0ms g++ 11.4.0
v 1.v 1284ms 0.9ms 1.5MB 1277ms 0ms v/clang 0.4.10
v 1.v 1299ms 2.5ms 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 37ms 1.6ms 3.4MB 110ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 39ms 0.2ms 2.0MB 130ms 0ms g++ 11.4.0
cpp 6-im.cpp 65ms 0.1ms 3.5MB 227ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 68ms 0.6ms 2.0MB 243ms 0ms g++ 11.4.0
v 1.v 325ms 1.3ms 1.5MB 320ms 0ms v/clang 0.4.10
v 1.v 326ms 0.2ms 2.5MB 320ms 0ms v/clang+gc 0.4.10