C VS C# benchmarks

Current benchmark data was generated on Thu Sep 22 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.)

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 2.1ms 0.3ms 1.0MB 0ms 0ms gcc 12.2.0
c 1.c 3.1ms 1.7ms 0.6MB 0ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 1.c 3.1ms 1.3ms 1.1MB 0ms 0ms clang 11.0.0
csharp 1.cs 19ms 0.3ms 23.8MB 10ms 0ms mono 6.12.0
csharp 1.cs 51ms 4.5ms 29.0MB 22ms 4ms dotnet 6.0.401

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-m.c 255ms 11ms 23.5MB 407ms 13ms gcc 12.2.0
c 1-m.c 522ms 38ms 20.3MB 827ms 13ms clang 11.0.0
csharp 6.cs 1202ms 73ms 75.3MB 1703ms 40ms dotnet 6.0.401
csharp 6-m.cs 1582ms 59ms 72.3MB 2573ms 23ms mono 6.12.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 34ms 0.8ms 12.7MB 40ms 0ms gcc 12.2.0
c 1.c 64ms 5.5ms 9.7MB 90ms 5ms clang 11.0.0
csharp 6.cs 238ms 5.4ms 63.9MB 257ms 17ms dotnet 6.0.401
csharp 6.cs 246ms 11ms 56.4MB 313ms 20ms mono 6.12.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 308ms 0.1ms 0.5MB 300ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 5.c 321ms 0.7ms 1.0MB 310ms 0ms gcc 12.2.0
c 5.c 329ms 0.5ms 0.6MB 320ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 2.c 338ms 0.3ms 0.6MB 330ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 8-i.c 346ms 3.0ms 1.1MB 333ms 0ms clang 11.0.0
c 5.c 367ms 0.2ms 1.1MB 357ms 0ms clang 11.0.0
c 8-i.c 367ms 3.6ms 1.0MB 353ms 0ms gcc 12.2.0
csharp 9.cs 405ms 2.4ms 27.3MB 373ms 0ms dotnet 6.0.401
c 2.c 415ms 7.0ms 1.0MB 397ms 0ms clang 11.0.0
csharp 8.cs 535ms 3.1ms 29.3MB 507ms 0ms dotnet 6.0.401
c 2.c 624ms 0.5ms 1.0MB 610ms 0ms gcc 12.2.0
csharp 8.cs 1127ms 33ms 24.8MB 1113ms 0ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 33ms 0.4ms 0.6MB 27ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 5.c 35ms 1.3ms 1.0MB 23ms 0ms gcc 12.2.0
c 5.c 36ms 0.3ms 0.6MB 27ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 2.c 36ms 0.1ms 0.6MB 30ms 0ms zigcc 0.10.0-dev.4060+61aaef0b0
c 8-i.c 39ms 0.4ms 1.0MB 30ms 0ms gcc 12.2.0
c 5.c 40ms 0.6ms 1.1MB 30ms 0ms clang 11.0.0
c 8-i.c 41ms 3.3ms 1.1MB 30ms 0ms clang 11.0.0
c 2.c 43ms 0.2ms 1.1MB 33ms 0ms clang 11.0.0
c 2.c 65ms 0.8ms 1.0MB 53ms 0ms gcc 12.2.0
csharp 9.cs 89ms 5.9ms 27.3MB 60ms 3ms dotnet 6.0.401
csharp 8.cs 103ms 4.1ms 31.3MB 73ms 0ms dotnet 6.0.401
csharp 8.cs 134ms 1.5ms 25.1MB 120ms 0ms mono 6.12.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 796ms 36ms 40.1MB 757ms 17ms zigcc 0.10.0-dev.4060+61aaef0b0
c 1.c 812ms 22ms 41.0MB 780ms 10ms gcc 12.2.0
c 1.c 820ms 13ms 40.9MB 773ms 27ms clang 11.0.0
csharp 1.cs 858ms 20ms 88.0MB 813ms 13ms dotnet 6.0.401
csharp 1.cs 910ms 21ms 84.8MB 870ms 20ms mono 6.12.0
csharp 2.cs 996ms 3.9ms 38.1MB 963ms 3ms dotnet 6.0.401
csharp 2.cs 2432ms 1.1ms 34.3MB 2413ms 7ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 121ms 0.8ms 10.8MB 103ms 7ms zigcc 0.10.0-dev.4060+61aaef0b0
c 1.c 123ms 1.8ms 11.6MB 110ms 0ms clang 11.0.0
c 1.c 124ms 3.2ms 11.9MB 107ms 0ms gcc 12.2.0
csharp 1.cs 183ms 0.3ms 40.8MB 163ms 7ms mono 6.12.0
csharp 1.cs 186ms 3.5ms 45.9MB 153ms 7ms dotnet 6.0.401
csharp 2.cs 278ms 1.1ms 29.7MB 247ms 0ms dotnet 6.0.401
csharp 2.cs 605ms 2.9ms 27.9MB 590ms 3ms mono 6.12.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 1397ms 12ms 1.0MB 2733ms 0ms gcc 12.2.0
c 6-im.c 1588ms 6.1ms 1.0MB 3110ms 0ms gcc 12.2.0
c 6-im.c 1722ms 4.5ms 3.0MB 3380ms 0ms clang 11.0.0
c 4-m.c 1749ms 11ms 2.9MB 3420ms 7ms clang 11.0.0
c 5-im.c 1847ms 1.6ms 1.0MB 3633ms 0ms gcc 12.2.0
c 5-im.c 2034ms 11ms 3.1MB 3990ms 0ms clang 11.0.0
c 3-m.c 2218ms 21ms 1.0MB 4350ms 0ms gcc 12.2.0
c 3-m.c 2222ms 12ms 3.2MB 4360ms 0ms clang 11.0.0
csharp 3-m.cs 3104ms 414ms 30.4MB 5183ms 13ms dotnet 6.0.401
csharp 3.cs timeout 0.0ms 0.0MB 0ms 0ms mono 6.12.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 358ms 1.4ms 1.0MB 690ms 0ms gcc 12.2.0
c 6-im.c 406ms 1.9ms 1.0MB 780ms 0ms gcc 12.2.0
c 6-im.c 443ms 5.0ms 3.0MB 843ms 0ms clang 11.0.0
c 4-m.c 445ms 2.0ms 3.0MB 853ms 0ms clang 11.0.0
c 5-im.c 473ms 2.7ms 1.0MB 910ms 0ms gcc 12.2.0
c 5-im.c 522ms 9.3ms 3.1MB 1003ms 0ms clang 11.0.0
c 3-m.c 559ms 0.8ms 1.0MB 1087ms 0ms gcc 12.2.0
c 3-m.c 576ms 18ms 3.2MB 1100ms 0ms clang 11.0.0
csharp 3-m.cs 716ms 4.2ms 31.4MB 1293ms 13ms dotnet 6.0.401
csharp 3-m.cs 3178ms 135ms 29.2MB 6037ms 3ms mono 6.12.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 97ms 0.9ms 1.0MB 170ms 0ms gcc 12.2.0
c 6-im.c 110ms 0.9ms 0.9MB 200ms 0ms gcc 12.2.0
c 6-im.c 118ms 0.6ms 3.1MB 210ms 0ms clang 11.0.0
c 4-m.c 121ms 3.1ms 3.1MB 213ms 0ms clang 11.0.0
c 5-im.c 128ms 2.7ms 1.0MB 233ms 0ms gcc 12.2.0
c 5-im.c 139ms 2.4ms 3.1MB 250ms 0ms clang 11.0.0
c 3-m.c 149ms 0.8ms 1.0MB 277ms 0ms gcc 12.2.0
c 3-m.c 153ms 2.3ms 3.2MB 273ms 0ms clang 11.0.0
csharp 3-m.cs 231ms 1.3ms 30.4MB 353ms 7ms dotnet 6.0.401
csharp 3-m.cs 802ms 1.9ms 29.5MB 1527ms 3ms mono 6.12.0