C++ VS D benchmarks

Current benchmark data was generated on Wed May 25 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 679ms 11ms 1.0MB 1237ms 3ms g++ 12.1.0
cpp 1-im.cpp 688ms 11ms 3.6MB 1337ms 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 67ms 5.0ms 3.6MB 110ms 0ms clang++ 11.0.0
cpp 1-im.cpp 69ms 1.8ms 1.0MB 100ms 0ms g++ 12.1.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.8ms 0.7ms 1.0MB 0ms 0ms g++ 12.1.0
d 1.d 2.7ms 0.6ms 4.0MB 0ms 0ms dmd 2.100.0
cpp 1.cpp 2.8ms 0.8ms 1.0MB 0ms 0ms clang++ 11.0.0
d 1.d 3.3ms 1.9ms 3.0MB 0ms 0ms ldc2 1.29.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.4ms 0.9MB 160ms 0ms g++ 12.1.0
cpp 0-i.cpp 212ms 0.4ms 1.1MB 200ms 0ms clang++ 11.0.0
cpp 1.cpp 307ms 5.8ms 0.9MB 293ms 0ms g++ 12.1.0
cpp 1.cpp 392ms 6.8ms 1.1MB 383ms 0ms clang++ 11.0.0
d 1.d 463ms 9.0ms 1.2MB 450ms 0ms ldc2 1.29.0
d 2.d 487ms 1.8ms 1.2MB 473ms 0ms ldc2 1.29.0
d 1.d 1093ms 2.5ms 1.9MB 1080ms 0ms dmd 2.100.0
d 2.d 2903ms 0.8ms 2.0MB 2890ms 0ms dmd 2.100.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 21ms 1.0ms 0.9MB 10ms 0ms g++ 12.1.0
cpp 0-i.cpp 24ms 1.9ms 1.1MB 13ms 0ms clang++ 11.0.0
cpp 1.cpp 33ms 0.1ms 0.9MB 20ms 0ms g++ 12.1.0
cpp 1.cpp 42ms 0.3ms 1.1MB 30ms 0ms clang++ 11.0.0
d 1.d 51ms 0.7ms 1.2MB 40ms 0ms ldc2 1.29.0
d 2.d 52ms 0.3ms 1.2MB 40ms 0ms ldc2 1.29.0
d 1.d 127ms 0.4ms 2.0MB 120ms 0ms dmd 2.100.0
d 2.d 260ms 0.6ms 1.9MB 250ms 0ms dmd 2.100.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 369ms 18ms 7.4MB 357ms 0ms clang++ 11.0.0
cpp 1.cpp 578ms 2.4ms 7.7MB 567ms 0ms g++ 12.1.0
d 2.d 868ms 1.3ms 48.8MB 837ms 13ms ldc2 1.29.0
d 1.d 1293ms 6.4ms 44.0MB 1260ms 13ms ldc2 1.29.0
d 1.d 1304ms 41ms 75.1MB 1273ms 13ms dmd 2.100.0
d 2.d 1728ms 2.6ms 49.2MB 1700ms 13ms dmd 2.100.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 78ms 5.3ms 3.7MB 67ms 0ms clang++ 11.0.0
d 1.d 124ms 3.7ms 14.2MB 113ms 0ms ldc2 1.29.0
cpp 1.cpp 138ms 9.6ms 4.0MB 130ms 0ms g++ 12.1.0
d 1.d 145ms 1.6ms 23.6MB 127ms 3ms dmd 2.100.0
d 2.d 205ms 0.2ms 15.2MB 187ms 3ms ldc2 1.29.0
d 2.d 430ms 0.4ms 15.9MB 410ms 7ms dmd 2.100.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 885ms 14ms 3.2MB 1717ms 0ms clang++ 11.0.0
cpp 8-m.cpp 885ms 14ms 3.2MB 1723ms 0ms clang++ 11.0.0
cpp 7-m.cpp 886ms 13ms 1.0MB 1707ms 0ms g++ 12.1.0
cpp 8-m.cpp 905ms 2.6ms 0.9MB 1763ms 0ms g++ 12.1.0
cpp 6-im.cpp 1804ms 22ms 3.2MB 3530ms 10ms clang++ 11.0.0
cpp 6-im.cpp 1808ms 11ms 0.9MB 3423ms 7ms g++ 12.1.0
d 1.d 3889ms 1.5ms 3.8MB 3877ms 0ms ldc2 1.29.0
d 1.d 4416ms 24ms 4.6MB 4400ms 0ms dmd 2.100.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 226ms 6.2ms 3.2MB 413ms 0ms clang++ 11.0.0
cpp 7-m.cpp 230ms 6.3ms 1.0MB 420ms 0ms g++ 12.1.0
cpp 8-m.cpp 232ms 6.2ms 3.1MB 433ms 0ms clang++ 11.0.0
cpp 8-m.cpp 236ms 1.3ms 1.0MB 440ms 0ms g++ 12.1.0
cpp 6-im.cpp 462ms 2.2ms 1.0MB 877ms 0ms g++ 12.1.0
cpp 6-im.cpp 470ms 2.8ms 3.2MB 897ms 0ms clang++ 11.0.0
d 1.d 977ms 1.0ms 3.6MB 963ms 0ms ldc2 1.29.0
d 1.d 1104ms 0.1ms 4.5MB 1093ms 0ms dmd 2.100.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 7-m.cpp 63ms 1.6ms 3.1MB 103ms 0ms clang++ 11.0.0
cpp 7-m.cpp 63ms 1.3ms 0.9MB 103ms 0ms g++ 12.1.0
cpp 8-m.cpp 65ms 1.8ms 3.2MB 110ms 0ms clang++ 11.0.0
cpp 8-m.cpp 67ms 1.8ms 1.0MB 110ms 0ms g++ 12.1.0
cpp 6-im.cpp 123ms 2.8ms 0.9MB 220ms 0ms g++ 12.1.0
cpp 6-im.cpp 127ms 3.0ms 3.1MB 223ms 0ms clang++ 11.0.0
d 1.d 248ms 1.6ms 3.2MB 233ms 0ms ldc2 1.29.0
d 1.d 281ms 1.1ms 3.9MB 270ms 0ms dmd 2.100.0