C++ VS Nim benchmarks

Current benchmark data was generated on Mon Oct 03 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 753ms 4.3ms 1.0MB 1460ms 0ms g++ 12.2.0
cpp 1-im.cpp 772ms 3.1ms 3.5MB 1500ms 0ms clang++ 11.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 72ms 1.9ms 1.0MB 120ms 0ms g++ 12.2.0
cpp 1-im.cpp 74ms 3.1ms 3.5MB 123ms 0ms clang++ 11.0.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1.6ms 0.4ms 0.7MB 0ms 0ms nim 1.6.8
nim 1.nim 1.9ms 0.7ms 1.0MB 0ms 0ms nim/clang 1.6.8
cpp 1.cpp 2.4ms 0.6ms 1.1MB 0ms 0ms clang++ 11.0.0
cpp 1.cpp 3.1ms 2.0ms 1.0MB 0ms 0ms g++ 12.2.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 226ms 1.0ms 0.9MB 220ms 0ms g++ 12.2.0
cpp 0-i.cpp 258ms 1.2ms 1.1MB 247ms 0ms clang++ 11.0.0
cpp 1.cpp 339ms 0.7ms 1.0MB 330ms 0ms g++ 12.2.0
cpp 1.cpp 384ms 0.4ms 1.1MB 370ms 0ms clang++ 11.0.0
nim 2.nim 405ms 1.0ms 1.0MB 393ms 0ms nim/clang 1.6.8
nim 2.nim 428ms 0.3ms 1.0MB 413ms 0ms nim 1.6.8

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 26ms 1.3ms 1.0MB 13ms 0ms g++ 12.2.0
cpp 0-i.cpp 29ms 0.6ms 1.1MB 20ms 0ms clang++ 11.0.0
cpp 1.cpp 37ms 0.7ms 1.0MB 30ms 0ms g++ 12.2.0
cpp 1.cpp 41ms 0.2ms 1.1MB 30ms 0ms clang++ 11.0.0
nim 2.nim 46ms 0.7ms 1.0MB 37ms 0ms nim 1.6.8
nim 2.nim 47ms 4.8ms 1.0MB 33ms 0ms nim/clang 1.6.8

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 419ms 3.4ms 7.5MB 407ms 0ms clang++ 11.0.0
nim 2.nim 588ms 1.8ms 6.4MB 577ms 0ms nim/clang 1.6.8
nim 2.nim 642ms 0.9ms 6.0MB 630ms 0ms nim 1.6.8
cpp 1.cpp 644ms 2.2ms 7.7MB 630ms 0ms g++ 12.2.0
nim 1.nim 665ms 15ms 41.1MB 643ms 0ms nim 1.6.8
nim 1.nim 734ms 6.6ms 40.6MB 713ms 3ms nim/clang 1.6.8

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.3ms 3.7MB 80ms 0ms clang++ 11.0.0
nim 1.nim 122ms 0.5ms 11.1MB 110ms 0ms nim 1.6.8
nim 1.nim 128ms 0.3ms 11.4MB 117ms 0ms nim/clang 1.6.8
nim 2.nim 140ms 0.6ms 3.2MB 130ms 0ms nim/clang 1.6.8
nim 2.nim 153ms 1.0ms 2.9MB 140ms 0ms nim 1.6.8
cpp 1.cpp 153ms 0.3ms 4.0MB 143ms 0ms g++ 12.2.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 1061ms 1.3ms 3.1MB 2073ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 3.4ms 3.2MB 2073ms 3ms clang++ 11.0.0
cpp 7-m.cpp 1062ms 2.6ms 0.9MB 2083ms 0ms g++ 12.2.0
cpp 8-m.cpp 1063ms 0.8ms 0.9MB 2077ms 0ms g++ 12.2.0
cpp 6-im.cpp 2243ms 24ms 3.2MB 4400ms 0ms clang++ 11.0.0
cpp 6-im.cpp 2243ms 21ms 1.0MB 4400ms 0ms g++ 12.2.0
nim 1.nim 4121ms 3.1ms 1.9MB 4107ms 0ms nim 1.6.8
nim 1.nim 4122ms 2.2ms 1.8MB 4107ms 0ms nim/clang 1.6.8

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 276ms 1.4ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 279ms 4.6ms 0.9MB 523ms 0ms g++ 12.2.0
cpp 8-m.cpp 279ms 3.6ms 0.9MB 520ms 0ms g++ 12.2.0
cpp 7-m.cpp 279ms 5.3ms 3.2MB 520ms 0ms clang++ 11.0.0
cpp 6-im.cpp 567ms 1.3ms 1.0MB 1100ms 0ms g++ 12.2.0
cpp 6-im.cpp 568ms 1.5ms 3.2MB 1097ms 0ms clang++ 11.0.0
nim 1.nim 1032ms 0.1ms 1.0MB 1020ms 0ms nim/clang 1.6.8
nim 1.nim 1032ms 0.5ms 0.9MB 1020ms 0ms nim 1.6.8

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 76ms 1.1ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 7-m.cpp 76ms 0.8ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 7-m.cpp 76ms 2.1ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 8-m.cpp 77ms 1.9ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 6-im.cpp 150ms 0.2ms 3.2MB 277ms 0ms clang++ 11.0.0
cpp 6-im.cpp 151ms 1.4ms 1.0MB 280ms 0ms g++ 12.2.0
nim 1.nim 260ms 0.9ms 1.0MB 250ms 0ms nim 1.6.8
nim 1.nim 261ms 1.0ms 1.0MB 250ms 0ms nim/clang 1.6.8