C++ VS V benchmarks

Current benchmark data was generated on Fri May 20 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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 757ms 0.8ms 1.0MB 1457ms 0ms g++ 12.1.0
cpp 1-im.cpp 774ms 8.3ms 3.6MB 1503ms 0ms clang++ 11.0.0
v 1.v 3311ms 2.6ms 1.9MB 3300ms 0ms v/clang+gc 0.2.4
v 1.v 3417ms 147ms 0.6MB 3407ms 0ms v/clang 0.2.4

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 72ms 0.6ms 1.0MB 123ms 0ms g++ 12.1.0
cpp 1-im.cpp 73ms 0.8ms 3.6MB 123ms 0ms clang++ 11.0.0
v 1.v 277ms 1.0ms 2.1MB 263ms 0ms v/clang+gc 0.2.4
v 1.v 281ms 1.5ms 0.6MB 267ms 0ms v/clang 0.2.4

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.5ms 0.7ms 0.6MB 0ms 0ms v/clang 0.2.4
cpp 1.cpp 2.0ms 0.6ms 0.9MB 0ms 0ms g++ 12.1.0
cpp 1.cpp 2.5ms 1.0ms 1.1MB 0ms 0ms clang++ 11.0.0
v 1.v 2.5ms 0.9ms 1.9MB 0ms 0ms v/clang+gc 0.2.4

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 225ms 0.3ms 0.9MB 213ms 0ms g++ 12.1.0
cpp 0-i.cpp 258ms 0.6ms 1.1MB 247ms 0ms clang++ 11.0.0
cpp 1.cpp 339ms 0.4ms 0.9MB 330ms 0ms g++ 12.1.0
cpp 1.cpp 386ms 2.5ms 1.1MB 373ms 0ms clang++ 11.0.0
v 1.v 988ms 1.1ms 0.8MB 980ms 0ms v/clang 0.2.4
v 1.v 1015ms 4.4ms 2.4MB 1003ms 0ms v/clang+gc 0.2.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 26ms 0.4ms 1.0MB 17ms 0ms g++ 12.1.0
cpp 0-i.cpp 29ms 0.6ms 1.1MB 20ms 0ms clang++ 11.0.0
cpp 1.cpp 36ms 0.7ms 0.9MB 23ms 0ms g++ 12.1.0
cpp 1.cpp 41ms 0.2ms 1.1MB 30ms 0ms clang++ 11.0.0
v 1.v 104ms 5.6ms 0.9MB 93ms 0ms v/clang 0.2.4
v 1.v 104ms 0.2ms 2.3MB 90ms 0ms v/clang+gc 0.2.4

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 422ms 5.1ms 7.4MB 403ms 0ms clang++ 11.0.0
v 2.v 509ms 13ms 6.8MB 490ms 0ms v/clang+gc 0.2.4
v 1.v 533ms 20ms 40.2MB 517ms 3ms v/clang 0.2.4
v 1.v 539ms 16ms 41.2MB 527ms 0ms v/clang+gc 0.2.4
cpp 1.cpp 648ms 1.2ms 7.7MB 637ms 0ms g++ 12.1.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.2ms 3.7MB 83ms 0ms clang++ 11.0.0
v 2.v 117ms 1.0ms 3.2MB 103ms 0ms v/clang+gc 0.2.4
v 1.v 118ms 0.6ms 11.0MB 110ms 0ms v/clang 0.2.4
v 1.v 118ms 2.9ms 19.1MB 100ms 0ms v/clang+gc 0.2.4
cpp 1.cpp 154ms 0.6ms 4.0MB 147ms 0ms g++ 12.1.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 1060ms 0.4ms 3.1MB 2070ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 0.7ms 3.2MB 2073ms 0ms clang++ 11.0.0
cpp 8-m.cpp 1066ms 2.3ms 1.0MB 2083ms 0ms g++ 12.1.0
cpp 7-m.cpp 1067ms 1.7ms 0.9MB 2093ms 0ms g++ 12.1.0
cpp 6-im.cpp 2241ms 10.0ms 1.0MB 4400ms 0ms g++ 12.1.0
cpp 6-im.cpp 2242ms 13ms 3.2MB 4400ms 3ms clang++ 11.0.0
v 1.v 4117ms 0.3ms 1.8MB 4110ms 0ms v/clang 0.2.4
v 1.v 4119ms 2.0ms 3.0MB 4103ms 0ms v/clang+gc 0.2.4

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 275ms 0.5ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 8-m.cpp 277ms 1.3ms 1.0MB 523ms 0ms g++ 12.1.0
cpp 7-m.cpp 277ms 1.7ms 3.2MB 520ms 0ms clang++ 11.0.0
cpp 7-m.cpp 279ms 2.1ms 1.0MB 527ms 0ms g++ 12.1.0
cpp 6-im.cpp 569ms 0.4ms 3.1MB 1097ms 0ms clang++ 11.0.0
cpp 6-im.cpp 571ms 3.0ms 1.0MB 1100ms 0ms g++ 12.1.0
v 1.v 1032ms 0.5ms 2.5MB 1020ms 0ms v/clang+gc 0.2.4
v 1.v 1043ms 2.3ms 0.8MB 1017ms 0ms v/clang 0.2.4

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 76ms 0.5ms 3.3MB 130ms 0ms clang++ 11.0.0
cpp 7-m.cpp 77ms 1.9ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 8-m.cpp 78ms 3.3ms 1.0MB 133ms 0ms g++ 12.1.0
cpp 7-m.cpp 78ms 2.7ms 1.0MB 130ms 0ms g++ 12.1.0
cpp 6-im.cpp 151ms 1.3ms 1.0MB 280ms 0ms g++ 12.1.0
cpp 6-im.cpp 151ms 1.5ms 3.1MB 273ms 0ms clang++ 11.0.0
v 1.v 261ms 0.6ms 2.6MB 250ms 0ms v/clang+gc 0.2.4
v 1.v 269ms 2.7ms 0.8MB 247ms 0ms v/clang 0.2.4