Programming Language and compiler
Benchmarks

D VS C++ benchmarks

Current benchmark data was generated on Fri May 20 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 3150ms 16ms 75.2MB 3393ms 20ms ldc2 1.29.0
d 1.d 4870ms 15ms 124.4MB 4957ms 33ms dmd 2.100.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 276ms 0.6ms 15.0MB 267ms 0ms ldc2 1.29.0
d 1.d 429ms 20ms 15.9MB 413ms 0ms dmd 2.100.0

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 2.100.0
d 1.d timeout 0.0ms 0.0MB 0ms 0ms ldc2 1.29.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1302ms 7.1ms 8.4MB 1287ms 3ms ldc2 1.29.0
d 1.d 1665ms 14ms 9.2MB 1650ms 0ms dmd 2.100.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3870ms 4.2ms 8.0MB 3860ms 0ms ldc2 1.29.0
d 1.d 4502ms 8.2ms 8.9MB 4483ms 0ms dmd 2.100.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 666ms 2.3ms 7.1MB 650ms 0ms ldc2 1.29.0
d 1.d 815ms 0.9ms 8.1MB 800ms 0ms dmd 2.100.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 2.0ms 0.6ms 0.9MB 0ms 0ms g++ 12.1.0
d 1.d 2.3ms 0.5ms 2.9MB 0ms 0ms ldc2 1.29.0
cpp 1.cpp 2.5ms 1.0ms 1.1MB 0ms 0ms clang++ 11.0.0
d 1.d 2.6ms 0.5ms 4.1MB 0ms 0ms dmd 2.100.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 180ms 1.0ms 4.2MB 170ms 0ms ldc2 1.29.0
d 1.d 247ms 0.6ms 5.0MB 237ms 0ms dmd 2.100.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 532ms 5.1ms 4.1MB 527ms 0ms ldc2 1.29.0
d 1.d 731ms 4.4ms 4.9MB 723ms 0ms dmd 2.100.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 78ms 2.4ms 3.8MB 67ms 0ms ldc2 1.29.0
d 1.d 109ms 1.2ms 4.5MB 100ms 0ms dmd 2.100.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1501ms 10.0ms 75.0MB 1557ms 10ms ldc2 1.29.0
d 1.d 2707ms 39ms 153.2MB 3007ms 30ms dmd 2.100.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 297ms 1.7ms 39.1MB 277ms 7ms ldc2 1.29.0
d 1.d 561ms 8.2ms 39.9MB 600ms 3ms dmd 2.100.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 225ms 0.3ms 0.9MB 213ms 0ms g++ 12.1.0
cpp 0-i.cpp 258ms 0.6ms 1.1MB 247ms 0ms clang++ 11.0.0
cpp 1.cpp 339ms 0.4ms 0.9MB 330ms 0ms g++ 12.1.0
cpp 1.cpp 386ms 2.5ms 1.1MB 373ms 0ms clang++ 11.0.0
d 1.d 425ms 0.5ms 1.2MB 413ms 0ms ldc2 1.29.0
d 2.d 435ms 0.1ms 1.2MB 423ms 0ms ldc2 1.29.0
d 1.d 1534ms 0.6ms 2.0MB 1520ms 0ms dmd 2.100.0
d 2.d 2691ms 0.8ms 1.9MB 2680ms 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 26ms 0.4ms 1.0MB 17ms 0ms g++ 12.1.0
cpp 0-i.cpp 29ms 0.6ms 1.1MB 20ms 0ms clang++ 11.0.0
cpp 1.cpp 36ms 0.7ms 0.9MB 23ms 0ms g++ 12.1.0
cpp 1.cpp 41ms 0.2ms 1.1MB 30ms 0ms clang++ 11.0.0
d 1.d 45ms 0.3ms 1.2MB 37ms 0ms ldc2 1.29.0
d 2.d 47ms 0.2ms 1.2MB 37ms 0ms ldc2 1.29.0
d 1.d 156ms 0.1ms 1.9MB 150ms 0ms dmd 2.100.0
d 2.d 277ms 3.8ms 2.0MB 267ms 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 422ms 5.1ms 7.4MB 403ms 0ms clang++ 11.0.0
cpp 1.cpp 648ms 1.2ms 7.7MB 637ms 0ms g++ 12.1.0
d 2.d 886ms 2.5ms 48.7MB 857ms 17ms ldc2 1.29.0
d 1.d 971ms 78ms 43.4MB 950ms 10ms ldc2 1.29.0
d 1.d 1078ms 24ms 75.3MB 1053ms 10ms dmd 2.100.0
d 2.d 1640ms 1.6ms 49.8MB 1623ms 0ms dmd 2.100.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.2ms 3.7MB 83ms 0ms clang++ 11.0.0
d 1.d 131ms 2.2ms 14.4MB 117ms 3ms ldc2 1.29.0
d 1.d 139ms 1.9ms 22.9MB 123ms 0ms dmd 2.100.0
cpp 1.cpp 154ms 0.6ms 4.0MB 147ms 0ms g++ 12.1.0
d 2.d 213ms 1.1ms 15.5MB 193ms 0ms ldc2 1.29.0
d 2.d 408ms 0.8ms 16.0MB 393ms 3ms dmd 2.100.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 3485ms 6.2ms 7.9MB 3463ms 33ms ldc2 1.29.0
d 1.d timeout 0.0ms 0.0MB 0ms 0ms dmd 2.100.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 824ms 0.5ms 7.8MB 817ms 0ms ldc2 1.29.0
d 1.d 1694ms 6.5ms 8.9MB 1683ms 0ms dmd 2.100.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 1060ms 0.4ms 3.1MB 2070ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 0.7ms 3.2MB 2073ms 0ms clang++ 11.0.0
cpp 8-m.cpp 1066ms 2.3ms 1.0MB 2083ms 0ms g++ 12.1.0
cpp 7-m.cpp 1067ms 1.7ms 0.9MB 2093ms 0ms g++ 12.1.0
cpp 6-im.cpp 2241ms 10.0ms 1.0MB 4400ms 0ms g++ 12.1.0
cpp 6-im.cpp 2242ms 13ms 3.2MB 4400ms 3ms clang++ 11.0.0
d 1.d 4667ms 0.7ms 3.8MB 4660ms 0ms ldc2 1.29.0
d 1.d 4783ms 1.0ms 4.5MB 4763ms 0ms dmd 2.100.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 275ms 0.5ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 8-m.cpp 277ms 1.3ms 1.0MB 523ms 0ms g++ 12.1.0
cpp 7-m.cpp 277ms 1.7ms 3.2MB 520ms 0ms clang++ 11.0.0
cpp 7-m.cpp 279ms 2.1ms 1.0MB 527ms 0ms g++ 12.1.0
cpp 6-im.cpp 569ms 0.4ms 3.1MB 1097ms 0ms clang++ 11.0.0
cpp 6-im.cpp 571ms 3.0ms 1.0MB 1100ms 0ms g++ 12.1.0
d 1.d 1171ms 1.1ms 3.5MB 1160ms 0ms ldc2 1.29.0
d 1.d 1199ms 0.4ms 4.4MB 1190ms 0ms dmd 2.100.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 76ms 0.5ms 3.3MB 130ms 0ms clang++ 11.0.0
cpp 7-m.cpp 77ms 1.9ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 8-m.cpp 78ms 3.3ms 1.0MB 133ms 0ms g++ 12.1.0
cpp 7-m.cpp 78ms 2.7ms 1.0MB 130ms 0ms g++ 12.1.0
cpp 6-im.cpp 151ms 1.3ms 1.0MB 280ms 0ms g++ 12.1.0
cpp 6-im.cpp 151ms 1.5ms 3.1MB 273ms 0ms clang++ 11.0.0
d 1.d 297ms 2.2ms 3.3MB 280ms 0ms ldc2 1.29.0
d 1.d 303ms 0.4ms 4.1MB 287ms 0ms dmd 2.100.0