Programming Language and compiler
Benchmarks

C++ VS Crystal benchmarks

Current benchmark data was generated on Sun Dec 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
cpp 1-im.cpp 404ms 2.2ms 4.5MB 1547ms 0ms g++ 11.4.0
cpp 1-im.cpp 408ms 0.7ms 5.9MB 1573ms 0ms clang++ 14.0.0-1ubuntu1.1
crystal 1.cr 2494ms 6.2ms 3.0MB 2483ms 0ms crystal 1.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 43ms 1.1ms 7.9MB 130ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1-im.cpp 44ms 0.2ms 4.5MB 140ms 0ms g++ 11.4.0
crystal 1.cr 208ms 2.8ms 3.0MB 197ms 0ms crystal 1.14.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 1.1ms 0.1ms 1.4MB 0ms 0ms g++ 11.4.0
cpp 1.cpp 1.5ms 0.2ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1
crystal 1.cr 2.1ms 0.2ms 3.0MB 0ms 0ms crystal 1.14.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 167ms 0.6ms 1.5MB 157ms 0ms g++ 11.4.0
cpp 0-i.cpp 170ms 0.3ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 313ms 0.8ms 1.8MB 300ms 0ms g++ 11.4.0
cpp 1.cpp 314ms 1.2ms 2.4MB 303ms 0ms clang++ 14.0.0-1ubuntu1.1
crystal 2.cr 343ms 1.1ms 3.4MB 330ms 0ms crystal 1.14.0
crystal 1.cr 344ms 2.1ms 3.4MB 330ms 0ms crystal 1.14.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 19ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
cpp 0-i.cpp 20ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 1.cpp 33ms 0.2ms 1.8MB 20ms 0ms g++ 11.4.0
cpp 1.cpp 34ms 0.2ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1
crystal 1.cr 38ms 0.8ms 3.4MB 30ms 0ms crystal 1.14.0
crystal 2.cr 38ms 1.0ms 3.4MB 27ms 0ms crystal 1.14.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 349ms 3.6ms 8.3MB 340ms 0ms crystal 1.14.0
crystal 1.cr 386ms 1.2ms 43.1MB 373ms 0ms crystal 1.14.0
cpp 1.cpp 486ms 4.6ms 7.3MB 470ms 0ms g++ 11.4.0
cpp 1.cpp 530ms 4.9ms 7.7MB 517ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 82ms 1.2ms 13.3MB 70ms 0ms crystal 1.14.0
crystal 2.cr 91ms 2.2ms 4.6MB 80ms 0ms crystal 1.14.0
cpp 1.cpp 119ms 0.3ms 3.6MB 110ms 0ms g++ 11.4.0
cpp 1.cpp 130ms 0.6ms 4.1MB 120ms 0ms clang++ 14.0.0-1ubuntu1.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 471ms 1.8ms 5.4MB 1820ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 481ms 1.7ms 4.2MB 1863ms 0ms g++ 11.4.0
cpp 6-im.cpp 926ms 12ms 7.4MB 3607ms 10ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 929ms 8.1ms 4.2MB 3630ms 0ms g++ 11.4.0
crystal 1.cr 3904ms 21ms 4.6MB 3893ms 0ms crystal 1.14.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 126ms 0.4ms 7.4MB 450ms 3ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 133ms 6.0ms 4.1MB 487ms 0ms g++ 11.4.0
cpp 6-im.cpp 240ms 3.2ms 7.4MB 900ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 240ms 0.9ms 4.1MB 907ms 3ms g++ 11.4.0
crystal 1.cr 979ms 2.1ms 4.3MB 967ms 0ms crystal 1.14.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 38ms 0.8ms 9.1MB 110ms 3ms clang++ 14.0.0-1ubuntu1.1
cpp 8-m.cpp 39ms 0.5ms 4.0MB 123ms 0ms g++ 11.4.0
cpp 6-im.cpp 67ms 0.2ms 7.4MB 220ms 0ms clang++ 14.0.0-1ubuntu1.1
cpp 6-im.cpp 79ms 17ms 4.0MB 260ms 0ms g++ 11.4.0
crystal 1.cr 249ms 2.4ms 4.0MB 240ms 0ms crystal 1.14.0