C++ VS Nim benchmarks

Current benchmark data was generated on Thu Feb 01 2024, 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 404ms 1.1ms 4.7MB 1547ms 0ms g++ 11.4.0
cpp 1-im.cpp 407ms 3.0ms 7.9MB 1560ms 7ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 43ms 0.6ms 5.9MB 133ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 43ms 0.4ms 4.5MB 140ms 0ms g++ 11.4.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.0ms 0.0ms 1.4MB 0ms 0ms g++ 11.4.0
nim 1.nim 1.0ms 0.1ms 1.6MB 0ms 0ms nim 2.0.2
nim 1.nim 1.2ms 0.1ms 1.9MB 0ms 0ms nim/clang 2.0.2
cpp 1.cpp 1.4ms 0.1ms 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 0.1ms 1.5MB 160ms 0ms g++ 11.4.0
cpp 0-i.cpp 172ms 3.6ms 2.3MB 163ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 313ms 1.4ms 1.9MB 300ms 0ms g++ 11.4.0
cpp 1.cpp 314ms 1.2ms 2.3MB 307ms 0ms clang++ 14.0.0-1ubuntu1.1
nim 2.nim 318ms 1.0ms 1.8MB 310ms 0ms nim 2.0.2
nim 2.nim 343ms 3.5ms 2.0MB 333ms 0ms nim/clang 2.0.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 19ms 0.2ms 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
cpp 1.cpp 34ms 0.4ms 2.3MB 20ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 34ms 0.9ms 1.8MB 27ms 0ms g++ 11.4.0
nim 2.nim 34ms 0.5ms 1.8MB 23ms 0ms nim 2.0.2
nim 2.nim 36ms 0.1ms 2.0MB 30ms 0ms nim/clang 2.0.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 282ms 2.6ms 41.5MB 270ms 0ms nim 2.0.2
nim 1.nim 351ms 9.9ms 41.8MB 337ms 0ms nim/clang 2.0.2
cpp 1.cpp 484ms 2.6ms 7.3MB 470ms 0ms g++ 11.4.0
cpp 1.cpp 526ms 2.3ms 7.8MB 513ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 56ms 1.3ms 11.5MB 47ms 0ms nim 2.0.2
nim 1.nim 65ms 1.0ms 11.8MB 53ms 0ms nim/clang 2.0.2
cpp 1.cpp 120ms 1.4ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 131ms 1.3ms 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 479ms 0.8ms 4.2MB 1863ms 0ms g++ 11.4.0
cpp 8-m.cpp 482ms 26ms 7.3MB 1840ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 916ms 3.0ms 5.3MB 3587ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 917ms 3.4ms 4.3MB 3607ms 0ms g++ 11.4.0
nim 1.nim 3574ms 1.9ms 1.6MB 3567ms 0ms nim/clang 2.0.2
nim 1.nim 3591ms 12ms 1.4MB 3580ms 0ms nim 2.0.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 126ms 0.2ms 7.3MB 450ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 128ms 0.2ms 4.1MB 477ms 0ms g++ 11.4.0
cpp 6-im.cpp 238ms 0.4ms 5.4MB 890ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 242ms 4.2ms 4.2MB 907ms 0ms g++ 11.4.0
nim 1.nim 895ms 0.8ms 1.5MB 887ms 0ms nim/clang 2.0.2
nim 1.nim 899ms 2.9ms 1.8MB 890ms 0ms nim 2.0.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 38ms 0.6ms 7.3MB 107ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 44ms 8.7ms 4.0MB 140ms 0ms g++ 11.4.0
cpp 6-im.cpp 67ms 0.9ms 5.4MB 227ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 68ms 0.2ms 4.2MB 237ms 0ms g++ 11.4.0
nim 1.nim 226ms 0.0ms 1.5MB 217ms 0ms nim/clang 2.0.2
nim 1.nim 227ms 1.0ms 1.8MB 220ms 0ms nim 2.0.2