C++ VS V benchmarks

Current benchmark data was generated on Mon Feb 06 2023, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz (Model 85)

* -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 664ms 4.6ms 3.9MB 1283ms 0ms clang++ 14.0.0
cpp 1-im.cpp 695ms 2.8ms 1.3MB 1313ms 0ms g++ 12.2.0
v 1.v 2813ms 16ms 2.0MB 2800ms 0ms v/clang+gc 0.3.3
v 1.v 2820ms 20ms 2.0MB 2803ms 0ms v/clang 0.3.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 65ms 1.5ms 5.9MB 107ms 0ms clang++ 14.0.0
cpp 1-im.cpp 67ms 2.2ms 1.3MB 110ms 0ms g++ 12.2.0
v 1.v 235ms 0.9ms 2.0MB 220ms 0ms v/clang+gc 0.3.3
v 1.v 236ms 0.4ms 2.1MB 223ms 0ms v/clang 0.3.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2.2ms 0.4ms 2.0MB 0ms 0ms v/clang+gc 0.3.3
cpp 1.cpp 2.3ms 0.8ms 1.4MB 0ms 0ms clang++ 14.0.0
cpp 1.cpp 2.4ms 0.7ms 1.4MB 0ms 0ms g++ 12.2.0
v 1.v 2.9ms 0.9ms 2.0MB 0ms 0ms v/clang 0.3.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 184ms 0.1ms 1.3MB 173ms 0ms g++ 12.2.0
cpp 0-i.cpp 211ms 0.5ms 1.4MB 200ms 0ms clang++ 14.0.0
cpp 1.cpp 352ms 5.7ms 1.4MB 337ms 0ms clang++ 14.0.0
cpp 1.cpp 358ms 0.6ms 1.3MB 350ms 0ms g++ 12.2.0
v 1.v 884ms 0.4ms 2.4MB 870ms 0ms v/clang+gc 0.3.3
v 1.v 904ms 17ms 2.3MB 885ms 0ms v/clang 0.3.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 21ms 0.9ms 1.3MB 10ms 0ms g++ 12.2.0
cpp 0-i.cpp 26ms 1.3ms 1.4MB 17ms 0ms clang++ 14.0.0
cpp 1.cpp 38ms 1.3ms 1.4MB 30ms 0ms clang++ 14.0.0
cpp 1.cpp 39ms 1.6ms 1.4MB 30ms 0ms g++ 12.2.0
v 1.v 92ms 0.2ms 2.2MB 80ms 0ms v/clang 0.3.3
v 1.v 97ms 6.8ms 2.3MB 87ms 0ms v/clang+gc 0.3.3

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 545ms 2.6ms 10.5MB 530ms 0ms v/clang 0.3.3
v 2.v 556ms 3.9ms 10.6MB 540ms 0ms v/clang+gc 0.3.3
cpp 1.cpp 664ms 9.6ms 7.5MB 650ms 0ms g++ 12.2.0
cpp 1.cpp 682ms 1.2ms 7.5MB 667ms 0ms clang++ 14.0.0
v 1.v 844ms 6.4ms 41.0MB 823ms 3ms v/clang 0.3.3
v 1.v 1012ms 3.7ms 41.1MB 987ms 10ms v/clang+gc 0.3.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 123ms 0.8ms 20.2MB 103ms 3ms v/clang+gc 0.3.3
v 1.v 124ms 2.8ms 20.8MB 107ms 0ms v/clang 0.3.3
v 2.v 125ms 0.5ms 4.1MB 113ms 0ms v/clang 0.3.3
v 2.v 126ms 0.6ms 4.3MB 117ms 0ms v/clang+gc 0.3.3
cpp 1.cpp 150ms 0.5ms 4.0MB 140ms 0ms g++ 12.2.0
cpp 1.cpp 155ms 0.5ms 3.9MB 143ms 0ms clang++ 14.0.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 894ms 1.2ms 3.3MB 1743ms 0ms clang++ 14.0.0
cpp 7-m.cpp 901ms 3.0ms 1.3MB 1753ms 0ms g++ 12.2.0
cpp 8-m.cpp 903ms 15ms 3.3MB 1740ms 3ms clang++ 14.0.0
cpp 8-m.cpp 903ms 1.4ms 1.3MB 1760ms 0ms g++ 12.2.0
cpp 6-im.cpp 1847ms 1.3ms 1.4MB 3627ms 0ms g++ 12.2.0
cpp 6-im.cpp 1870ms 13ms 3.4MB 3650ms 0ms clang++ 14.0.0
v 1.v timeout 0.0ms 3.0MB 4990ms 0ms v/clang 0.3.3
v 1.v timeout 0.0ms 3.0MB 4990ms 0ms v/clang+gc 0.3.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 235ms 0.2ms 3.4MB 440ms 0ms clang++ 14.0.0
cpp 7-m.cpp 236ms 1.9ms 1.3MB 437ms 0ms g++ 12.2.0
cpp 8-m.cpp 237ms 1.3ms 1.3MB 440ms 0ms g++ 12.2.0
cpp 8-m.cpp 239ms 3.1ms 3.3MB 440ms 0ms clang++ 14.0.0
cpp 6-im.cpp 473ms 1.6ms 3.3MB 907ms 0ms clang++ 14.0.0
cpp 6-im.cpp 477ms 3.6ms 1.3MB 907ms 0ms g++ 12.2.0
v 1.v 1665ms 0.5ms 2.8MB 1657ms 0ms v/clang 0.3.3
v 1.v 1666ms 1.5ms 2.8MB 1660ms 0ms v/clang+gc 0.3.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 65ms 0.3ms 3.2MB 107ms 0ms clang++ 14.0.0
cpp 7-m.cpp 66ms 0.4ms 1.3MB 110ms 0ms g++ 12.2.0
cpp 8-m.cpp 66ms 2.4ms 1.3MB 107ms 0ms g++ 12.2.0
cpp 8-m.cpp 69ms 0.9ms 3.6MB 110ms 0ms clang++ 14.0.0
cpp 6-im.cpp 127ms 0.2ms 3.6MB 227ms 0ms clang++ 14.0.0
cpp 6-im.cpp 128ms 2.0ms 1.3MB 227ms 0ms g++ 12.2.0
v 1.v 420ms 1.3ms 2.6MB 407ms 0ms v/clang+gc 0.3.3
v 1.v 422ms 1.3ms 2.5MB 407ms 0ms v/clang 0.3.3