Programming Language and compiler
Benchmarks

D VS C++ benchmarks

Current benchmark data was generated on Wed Sep 28 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2842ms 50ms 75.2MB 3027ms 17ms ldc2 1.30.0
d 1.d 4623ms 29ms 124.8MB 4723ms 23ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 260ms 0.9ms 15.2MB 250ms 0ms ldc2 1.30.0
d 1.d 371ms 4.2ms 16.2MB 363ms 0ms dmd 2.100.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2
d 1.d timeout 0.0ms 0.0MB 0ms 0ms ldc2 1.30.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1328ms 12ms 8.2MB 1313ms 3ms ldc2 1.30.0
d 1.d 1636ms 19ms 9.4MB 1620ms 0ms dmd 2.100.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3821ms 3.6ms 7.9MB 3803ms 0ms ldc2 1.30.0
d 1.d 4475ms 3.0ms 8.9MB 4467ms 0ms dmd 2.100.2

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 654ms 0.9ms 6.8MB 640ms 0ms ldc2 1.30.0
d 1.d 810ms 0.7ms 7.9MB 800ms 0ms dmd 2.100.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 200ms 0.3ms 30.6MB 180ms 7ms ldc2 1.30.0
d 1.d 770ms 0.8ms 50.3MB 760ms 3ms dmd 2.100.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 24ms 0.3ms 7.1MB 20ms 0ms ldc2 1.30.0
d 1.d 79ms 0.3ms 10.5MB 70ms 0ms dmd 2.100.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2.0ms 0.2ms 4.0MB 0ms 0ms dmd 2.100.2
cpp 1.cpp 2.2ms 0.9ms 1.1MB 0ms 0ms clang++ 11.0.0
d 1.d 2.2ms 0.6ms 2.9MB 0ms 0ms ldc2 1.30.0
cpp 1.cpp 2.5ms 1.1ms 1.0MB 0ms 0ms g++ 12.2.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 178ms 1.4ms 4.0MB 163ms 0ms ldc2 1.30.0
d 1.d 244ms 0.5ms 6.8MB 233ms 0ms dmd 2.100.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 526ms 4.2ms 3.9MB 510ms 0ms ldc2 1.30.0
d 1.d 724ms 3.3ms 4.9MB 710ms 0ms dmd 2.100.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 76ms 0.6ms 3.7MB 70ms 0ms ldc2 1.30.0
d 1.d 106ms 0.6ms 4.6MB 100ms 0ms dmd 2.100.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 572ms 0.1ms 7.1MB 560ms 0ms ldc2 1.30.0
d 1.d 2507ms 3.3ms 7.6MB 2497ms 0ms dmd 2.100.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 27ms 0.1ms 3.0MB 20ms 0ms ldc2 1.30.0
d 1.d 106ms 0.2ms 3.5MB 97ms 0ms dmd 2.100.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1382ms 27ms 74.8MB 1440ms 3ms ldc2 1.30.0
d 1.d 2591ms 9.8ms 153.6MB 2880ms 27ms dmd 2.100.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 260ms 8.2ms 39.1MB 243ms 7ms ldc2 1.30.0
d 1.d 512ms 4.6ms 40.0MB 543ms 3ms dmd 2.100.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 225ms 0.2ms 0.9MB 210ms 0ms g++ 12.2.0
cpp 0-i.cpp 257ms 0.5ms 1.1MB 243ms 0ms clang++ 11.0.0
cpp 1.cpp 339ms 1.0ms 0.9MB 330ms 0ms g++ 12.2.0
cpp 1.cpp 384ms 0.4ms 1.1MB 373ms 0ms clang++ 11.0.0
d 1.d 425ms 0.6ms 1.2MB 410ms 0ms ldc2 1.30.0
d 2.d 436ms 2.3ms 1.2MB 423ms 0ms ldc2 1.30.0
d 1.d 1531ms 0.1ms 2.0MB 1520ms 0ms dmd 2.100.2
d 2.d 2678ms 5.9ms 1.9MB 2667ms 0ms dmd 2.100.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 25ms 0.3ms 1.0MB 20ms 0ms g++ 12.2.0
cpp 0-i.cpp 28ms 0.3ms 1.1MB 20ms 0ms clang++ 11.0.0
cpp 1.cpp 37ms 0.2ms 1.0MB 30ms 0ms g++ 12.2.0
cpp 1.cpp 42ms 0.7ms 1.1MB 30ms 0ms clang++ 11.0.0
d 1.d 45ms 0.5ms 1.2MB 37ms 0ms ldc2 1.30.0
d 2.d 46ms 0.1ms 1.2MB 40ms 0ms ldc2 1.30.0
d 1.d 156ms 1.3ms 1.9MB 150ms 0ms dmd 2.100.2
d 2.d 271ms 0.2ms 1.9MB 260ms 0ms dmd 2.100.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 415ms 6.4ms 7.5MB 403ms 0ms clang++ 11.0.0
d 1.d 568ms 34ms 42.9MB 550ms 7ms ldc2 1.30.0
d 1.d 570ms 22ms 75.6MB 550ms 7ms dmd 2.100.2
cpp 1.cpp 648ms 9.1ms 7.7MB 633ms 0ms g++ 12.2.0
d 2.d 863ms 7.8ms 48.1MB 833ms 10ms ldc2 1.30.0
d 2.d 1634ms 4.1ms 49.5MB 1610ms 7ms dmd 2.100.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.8ms 3.7MB 87ms 0ms clang++ 11.0.0
d 1.d 133ms 6.7ms 14.6MB 117ms 0ms ldc2 1.30.0
d 1.d 134ms 1.3ms 23.0MB 123ms 0ms dmd 2.100.2
cpp 1.cpp 154ms 0.7ms 4.0MB 140ms 0ms g++ 12.2.0
d 2.d 202ms 0.5ms 15.6MB 190ms 0ms ldc2 1.30.0
d 2.d 406ms 0.7ms 15.6MB 390ms 0ms dmd 2.100.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3422ms 16ms 7.8MB 3427ms 7ms ldc2 1.30.0
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 803ms 0.7ms 7.9MB 793ms 0ms ldc2 1.30.0
d 1.d 1679ms 2.7ms 8.8MB 1667ms 3ms dmd 2.100.2

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.2
d 1.d timeout 0.0ms 0.0MB 0ms 0ms ldc2 1.30.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1454ms 2.8ms 3.8MB 1450ms 0ms ldc2 1.30.0
d 1.d 3195ms 6.3ms 5.4MB 3190ms 3ms dmd 2.100.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 1060ms 1.0ms 3.1MB 2073ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 2.4ms 3.2MB 2073ms 0ms clang++ 11.0.0
cpp 8-m.cpp 1062ms 1.1ms 0.9MB 2080ms 0ms g++ 12.2.0
cpp 7-m.cpp 1065ms 1.7ms 1.0MB 2083ms 0ms g++ 12.2.0
cpp 6-im.cpp 2234ms 1.6ms 1.0MB 4400ms 0ms g++ 12.2.0
cpp 6-im.cpp 2245ms 15ms 3.2MB 4407ms 0ms clang++ 11.0.0
d 1.d 4593ms 3.7ms 4.2MB 4580ms 0ms ldc2 1.30.0
d 1.d 4778ms 1.0ms 4.7MB 4767ms 0ms dmd 2.100.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 274ms 0.2ms 1.0MB 520ms 0ms g++ 12.2.0
cpp 8-m.cpp 275ms 0.2ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 276ms 1.7ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 277ms 2.5ms 1.0MB 520ms 0ms g++ 12.2.0
cpp 6-im.cpp 568ms 2.1ms 0.9MB 1100ms 0ms g++ 12.2.0
cpp 6-im.cpp 568ms 1.5ms 3.2MB 1097ms 0ms clang++ 11.0.0
d 1.d 1151ms 0.1ms 3.6MB 1140ms 0ms ldc2 1.30.0
d 1.d 1198ms 0.5ms 4.3MB 1190ms 0ms dmd 2.100.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 76ms 1.8ms 3.2MB 127ms 0ms clang++ 11.0.0
cpp 7-m.cpp 76ms 1.1ms 3.2MB 127ms 0ms clang++ 11.0.0
cpp 8-m.cpp 77ms 0.8ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 7-m.cpp 77ms 0.6ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 6-im.cpp 151ms 0.1ms 1.0MB 277ms 0ms g++ 12.2.0
cpp 6-im.cpp 151ms 2.2ms 3.2MB 273ms 0ms clang++ 11.0.0
d 1.d 291ms 0.4ms 3.3MB 280ms 0ms ldc2 1.30.0
d 1.d 304ms 0.6ms 4.0MB 290ms 0ms dmd 2.100.2