Programming Language and compiler
Benchmarks

C++ VS C# benchmarks

Current benchmark data was generated on Sun Dec 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 2.2ms 4.5MB 1547ms 0ms g++ 11.4.0
cpp 1-im.cpp 408ms 0.7ms 5.9MB 1573ms 0ms 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 1.1ms 7.9MB 130ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 44ms 0.2ms 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 1.1ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.5ms 0.2ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
csharp 1.cs 9.1ms 5.1ms 13.5MB 0ms 0ms dotnet/aot 9.0.100
csharp 1.cs 32ms 0.8ms 23.7MB 20ms 0ms mono 6.12.0
csharp 1.cs 37ms 0.4ms 32.6MB 20ms 4ms dotnet 9.0.100

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.6ms 1.5MB 157ms 0ms g++ 11.4.0
cpp 0-i.cpp 170ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 313ms 0.8ms 1.8MB 300ms 0ms g++ 11.4.0
cpp 1.cpp 314ms 1.2ms 2.4MB 303ms 0ms clang++ 14.0.0-1ubuntu1.1
csharp 9.cs 362ms 1.8ms 33.9MB 337ms 13ms dotnet 9.0.100
csharp 8.cs 370ms 2.0ms 15.7MB 350ms 0ms dotnet/aot 9.0.100
csharp 8.cs 436ms 9.8ms 33.7MB 410ms 3ms dotnet 9.0.100
csharp 8.cs 1249ms 3.5ms 24.2MB 1233ms 0ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 19ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 20ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 33ms 0.2ms 1.8MB 20ms 0ms g++ 11.4.0
cpp 1.cpp 34ms 0.2ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1
csharp 8.cs 48ms 0.3ms 15.7MB 33ms 0ms dotnet/aot 9.0.100
csharp 8.cs 96ms 0.6ms 31.9MB 70ms 10ms dotnet 9.0.100
csharp 9.cs 97ms 7.6ms 34.1MB 67ms 13ms dotnet 9.0.100
csharp 8.cs 166ms 2.5ms 24.2MB 150ms 0ms mono 6.12.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 352ms 5.4ms 53.0MB 323ms 13ms dotnet/aot 9.0.100
csharp 1.cs 382ms 18ms 76.9MB 350ms 20ms dotnet 9.0.100
csharp 2.cs 396ms 2.5ms 39.9MB 377ms 7ms dotnet 9.0.100
csharp 2.cs 426ms 2.0ms 21.8MB 407ms 0ms dotnet/aot 9.0.100
cpp 1.cpp 486ms 4.6ms 7.3MB 470ms 0ms g++ 11.4.0
cpp 1.cpp 530ms 4.9ms 7.7MB 517ms 0ms clang++ 14.0.0-1ubuntu1.1
csharp 1.cs 555ms 7.7ms 87.7MB 530ms 10ms mono 6.12.0
csharp 2.cs 1860ms 3.7ms 29.4MB 1840ms 7ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 69ms 2.0ms 25.5MB 50ms 7ms dotnet/aot 9.0.100
csharp 1.cs 105ms 4.4ms 45.3MB 77ms 17ms dotnet 9.0.100
csharp 2.cs 111ms 1.2ms 17.8MB 93ms 0ms dotnet/aot 9.0.100
cpp 1.cpp 119ms 0.3ms 3.6MB 110ms 0ms g++ 11.4.0
csharp 2.cs 128ms 1.6ms 36.1MB 113ms 0ms dotnet 9.0.100
cpp 1.cpp 130ms 0.6ms 4.1MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1
csharp 1.cs 149ms 4.9ms 40.2MB 133ms 3ms mono 6.12.0
csharp 2.cs 482ms 4.3ms 23.1MB 467ms 7ms mono 6.12.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 471ms 1.8ms 5.4MB 1820ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 481ms 1.7ms 4.2MB 1863ms 0ms g++ 11.4.0
cpp 6-im.cpp 926ms 12ms 7.4MB 3607ms 10ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 929ms 8.1ms 4.2MB 3630ms 0ms g++ 11.4.0
csharp 3-m.cs 1876ms 14ms 18.4MB 7223ms 10ms dotnet/aot 9.0.100
csharp 3-m.cs 1941ms 14ms 38.2MB 7280ms 23ms dotnet 9.0.100
csharp 3-m.cs 4666ms 74ms 28.5MB 17763ms 20ms mono 6.12.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 126ms 0.4ms 7.4MB 450ms 3ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 133ms 6.0ms 4.1MB 487ms 0ms g++ 11.4.0
cpp 6-im.cpp 240ms 3.2ms 7.4MB 900ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 240ms 0.9ms 4.1MB 907ms 3ms g++ 11.4.0
csharp 3-m.cs 476ms 0.7ms 18.1MB 1800ms 0ms dotnet/aot 9.0.100
csharp 3-m.cs 754ms 13ms 37.5MB 1653ms 30ms dotnet 9.0.100
csharp 3-m.cs 1224ms 32ms 30.7MB 4513ms 7ms mono 6.12.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 38ms 0.8ms 9.1MB 110ms 3ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 39ms 0.5ms 4.0MB 123ms 0ms g++ 11.4.0
cpp 6-im.cpp 67ms 0.2ms 7.4MB 220ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 79ms 17ms 4.0MB 260ms 0ms g++ 11.4.0
csharp 3-m.cs 129ms 0.8ms 18.3MB 443ms 3ms dotnet/aot 9.0.100
csharp 3-m.cs 250ms 3.1ms 36.7MB 457ms 13ms dotnet 9.0.100
csharp 3-m.cs 345ms 2.9ms 28.4MB 1153ms 10ms mono 6.12.0