Programming Language and compiler
Benchmarks

C++ VS D 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
d 1-im.d 377ms 1.3ms 5.1MB 1410ms 0ms ldc2 1.36.0
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
d 2-im.d 1098ms 3.6ms 5.1MB 4300ms 0ms ldc2 1.36.0
d 1-i.d 1487ms 3.8ms 2.9MB 1477ms 0ms ldc2 1.36.0
d 1.d 3201ms 46ms 2.8MB 3190ms 0ms ldc2 1.36.0
d 2-i.d 3209ms 2.9ms 2.9MB 3197ms 0ms ldc2 1.36.0
d 1.d 3516ms 4.8ms 4.5MB 3507ms 0ms dmd 2.106.1
d 1-im.d 4227ms 21ms 6.7MB 16463ms 7ms dmd 2.106.1
d 1-i.d timeout 0.0ms 4.4MB 4990ms 0ms dmd 2.106.1
d 2-i.d timeout 0.0ms 4.4MB 4990ms 0ms dmd 2.106.1
d 2-im.d timeout 0.0ms 8.7MB 19663ms 10ms dmd 2.106.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 39ms 1.4ms 5.2MB 107ms 0ms ldc2 1.36.0
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
d 2-im.d 96ms 1.8ms 6.9MB 343ms 0ms ldc2 1.36.0
d 1-i.d 124ms 0.1ms 2.8MB 110ms 0ms ldc2 1.36.0
d 2-i.d 265ms 0.5ms 2.9MB 250ms 0ms ldc2 1.36.0
d 1.d 267ms 3.3ms 2.8MB 253ms 0ms ldc2 1.36.0
d 1.d 296ms 1.6ms 4.5MB 290ms 0ms dmd 2.106.1
d 1-im.d 367ms 18ms 8.7MB 1340ms 0ms dmd 2.106.1
d 2-im.d 526ms 7.6ms 8.6MB 2000ms 0ms dmd 2.106.1
d 1-i.d 858ms 2.1ms 4.6MB 847ms 0ms dmd 2.106.1
d 2-i.d 1373ms 13ms 4.4MB 1357ms 0ms dmd 2.106.1

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
cpp 1.cpp 1.4ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
d 1.d 1.7ms 0.1ms 3.0MB 0ms 0ms ldc2 1.36.0
d 1.d 2.2ms 0.1ms 4.9MB 0ms 0ms dmd 2.106.1

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
d 2.d 359ms 0.7ms 2.9MB 350ms 0ms ldc2 1.36.0
d 1.d 361ms 0.8ms 2.9MB 350ms 0ms ldc2 1.36.0
d 1.d 673ms 1.2ms 4.4MB 660ms 0ms dmd 2.106.1
d 2.d 2011ms 6.9ms 4.5MB 2000ms 0ms dmd 2.106.1

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
d 1.d 39ms 0.6ms 2.9MB 30ms 0ms ldc2 1.36.0
d 2.d 39ms 0.4ms 2.9MB 27ms 0ms ldc2 1.36.0
d 1.d 71ms 1.0ms 4.5MB 60ms 0ms dmd 2.106.1
d 2.d 206ms 3.5ms 4.4MB 193ms 0ms dmd 2.106.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 315ms 1.5ms 43.8MB 300ms 3ms ldc2 1.36.0
d 1.d 340ms 4.4ms 77.1MB 320ms 7ms dmd 2.106.1
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
d 2.d 812ms 0.6ms 47.7MB 787ms 10ms ldc2 1.36.0
d 2.d 1117ms 1.8ms 49.3MB 1093ms 7ms dmd 2.106.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 65ms 0.3ms 13.8MB 53ms 0ms ldc2 1.36.0
d 1.d 73ms 2.1ms 23.8MB 63ms 0ms dmd 2.106.1
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
d 2.d 202ms 0.7ms 15.7MB 183ms 3ms ldc2 1.36.0
d 2.d 280ms 1.1ms 17.4MB 267ms 3ms dmd 2.106.1

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
d 1.d 3582ms 3.5ms 3.9MB 3567ms 0ms ldc2 1.36.0
d 1.d 3609ms 12ms 5.8MB 3600ms 0ms dmd 2.106.1

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
d 1.d 897ms 1.0ms 3.5MB 880ms 0ms ldc2 1.36.0
d 1.d 907ms 1.8ms 5.3MB 900ms 0ms dmd 2.106.1

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
d 1.d 229ms 0.4ms 3.1MB 217ms 0ms ldc2 1.36.0
d 1.d 232ms 2.4ms 5.0MB 223ms 0ms dmd 2.106.1