C++ VS V benchmarks

Current benchmark data was generated on Fri Sep 30 2022, 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 692ms 1.6ms 1.0MB 1310ms 0ms g++ 12.2.0
cpp 1-im.cpp 694ms 8.4ms 3.6MB 1347ms 0ms clang++ 11.0.0
v 1.v 3035ms 6.2ms 2.0MB 3023ms 0ms v/clang 0.3.1
v 1.v 3110ms 179ms 2.0MB 3093ms 0ms v/clang+gc 0.3.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 66ms 0.7ms 1.0MB 107ms 0ms g++ 12.2.0
cpp 1-im.cpp 67ms 0.5ms 3.7MB 110ms 0ms clang++ 11.0.0
v 1.v 250ms 1.0ms 1.9MB 240ms 0ms v/clang+gc 0.3.1
v 1.v 251ms 1.1ms 2.0MB 237ms 0ms v/clang 0.3.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.9ms 0.7ms 1.0MB 0ms 0ms g++ 12.2.0
v 1.v 2.2ms 0.7ms 2.0MB 0ms 0ms v/clang+gc 0.3.1
v 1.v 2.4ms 0.5ms 2.1MB 0ms 0ms v/clang 0.3.1
cpp 1.cpp 2.6ms 0.6ms 1.1MB 0ms 0ms clang++ 11.0.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 183ms 0.4ms 1.0MB 170ms 0ms g++ 12.2.0
cpp 0-i.cpp 212ms 0.1ms 1.1MB 200ms 0ms clang++ 11.0.0
cpp 1.cpp 357ms 0.5ms 0.9MB 350ms 0ms g++ 12.2.0
cpp 1.cpp 399ms 14ms 1.1MB 387ms 0ms clang++ 11.0.0
v 1.v 993ms 14ms 2.3MB 977ms 0ms v/clang 0.3.1
v 1.v 1002ms 0.6ms 2.4MB 990ms 0ms v/clang+gc 0.3.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 21ms 0.4ms 0.9MB 10ms 0ms g++ 12.2.0
cpp 0-i.cpp 23ms 0.3ms 1.1MB 13ms 0ms clang++ 11.0.0
cpp 1.cpp 38ms 0.4ms 1.0MB 30ms 0ms g++ 12.2.0
cpp 1.cpp 44ms 1.0ms 1.1MB 30ms 0ms clang++ 11.0.0
v 1.v 106ms 4.0ms 2.4MB 93ms 0ms v/clang 0.3.1
v 1.v 106ms 3.7ms 2.3MB 97ms 0ms v/clang+gc 0.3.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 377ms 1.7ms 7.4MB 363ms 0ms clang++ 11.0.0
v 2.v 536ms 0.5ms 10.5MB 523ms 0ms v/clang+gc 0.3.1
v 2.v 547ms 0.4ms 6.8MB 530ms 0ms v/clang 0.3.1
cpp 1.cpp 637ms 2.1ms 7.7MB 623ms 0ms g++ 12.2.0
v 1.v 1234ms 37ms 41.3MB 1210ms 7ms v/clang 0.3.1
v 1.v 1269ms 33ms 41.2MB 1250ms 7ms v/clang+gc 0.3.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 81ms 0.3ms 3.8MB 70ms 0ms clang++ 11.0.0
v 1.v 117ms 1.3ms 19.0MB 100ms 0ms v/clang+gc 0.3.1
v 1.v 118ms 0.6ms 19.8MB 103ms 0ms v/clang 0.3.1
v 2.v 125ms 1.0ms 3.3MB 110ms 0ms v/clang+gc 0.3.1
v 2.v 125ms 0.2ms 3.3MB 117ms 0ms v/clang 0.3.1
cpp 1.cpp 147ms 0.7ms 4.0MB 133ms 0ms g++ 12.2.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 892ms 4.0ms 3.2MB 1737ms 0ms clang++ 11.0.0
cpp 7-m.cpp 894ms 6.6ms 1.0MB 1737ms 0ms g++ 12.2.0
cpp 8-m.cpp 897ms 1.9ms 1.0MB 1743ms 0ms g++ 12.2.0
cpp 8-m.cpp 900ms 4.4ms 3.2MB 1750ms 0ms clang++ 11.0.0
cpp 6-im.cpp 1837ms 2.9ms 0.9MB 3600ms 0ms g++ 12.2.0
cpp 6-im.cpp 1838ms 23ms 3.2MB 3597ms 3ms clang++ 11.0.0
v 1.v 3432ms 0.2ms 2.9MB 3420ms 0ms v/clang+gc 0.3.1
v 1.v 3435ms 2.2ms 2.8MB 3420ms 0ms v/clang 0.3.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 232ms 0.3ms 3.2MB 430ms 0ms clang++ 11.0.0
cpp 8-m.cpp 235ms 1.7ms 0.9MB 440ms 0ms g++ 12.2.0
cpp 7-m.cpp 236ms 4.7ms 1.0MB 433ms 0ms g++ 12.2.0
cpp 8-m.cpp 237ms 1.6ms 3.2MB 440ms 0ms clang++ 11.0.0
cpp 6-im.cpp 467ms 2.4ms 3.1MB 893ms 0ms clang++ 11.0.0
cpp 6-im.cpp 470ms 2.8ms 1.0MB 903ms 0ms g++ 12.2.0
v 1.v 861ms 0.2ms 2.5MB 850ms 0ms v/clang 0.3.1
v 1.v 863ms 0.6ms 2.6MB 847ms 0ms v/clang+gc 0.3.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 65ms 1.2ms 0.9MB 110ms 0ms g++ 12.2.0
cpp 7-m.cpp 67ms 2.0ms 3.2MB 110ms 0ms clang++ 11.0.0
cpp 7-m.cpp 67ms 3.0ms 1.0MB 110ms 0ms g++ 12.2.0
cpp 8-m.cpp 68ms 2.0ms 3.2MB 107ms 0ms clang++ 11.0.0
cpp 6-im.cpp 126ms 1.5ms 3.1MB 227ms 0ms clang++ 11.0.0
cpp 6-im.cpp 126ms 0.2ms 1.0MB 223ms 0ms g++ 12.2.0
v 1.v 218ms 0.3ms 2.6MB 207ms 0ms v/clang 0.3.1
v 1.v 219ms 0.8ms 2.6MB 203ms 0ms v/clang+gc 0.3.1