Programming Language and compiler
Benchmarks

All C++ benchmarks

Current benchmark data was generated on Wed Jan 22 2025, 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-im.cpp 406ms 13ms 7.9MB 1557ms 7ms clang++ 14.0.0-1ubuntu1.1
1-im.cpp 407ms 4.6ms 4.7MB 1547ms 0ms g++ 11.4.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1-im.cpp 42ms 1.3ms 7.9MB 127ms 0ms clang++ 14.0.0-1ubuntu1.1
1-im.cpp 43ms 0.7ms 4.7MB 140ms 0ms g++ 11.4.0

helloworld

Input: QwQ

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cpp 1.0ms 0.0ms 1.4MB 0ms 0ms g++ 11.4.0
1.cpp 1.5ms 0.1ms 2.3MB 0ms 0ms clang++ 14.0.0-1ubuntu1.1

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-i.cpp 166ms 0.1ms 1.5MB 160ms 0ms g++ 11.4.0
0-i.cpp 170ms 0.6ms 2.3MB 160ms 0ms clang++ 14.0.0-1ubuntu1.1
1.cpp 313ms 1.7ms 1.8MB 303ms 0ms g++ 11.4.0
1.cpp 313ms 1.0ms 2.3MB 300ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-i.cpp 19ms 0.1ms 1.5MB 10ms 0ms g++ 11.4.0
0-i.cpp 19ms 0.2ms 2.3MB 10ms 0ms clang++ 14.0.0-1ubuntu1.1
1.cpp 34ms 0.6ms 2.3MB 27ms 0ms clang++ 14.0.0-1ubuntu1.1
1.cpp 34ms 0.8ms 1.8MB 23ms 0ms g++ 11.4.0

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cpp 483ms 3.5ms 7.3MB 470ms 0ms g++ 11.4.0
1.cpp 526ms 1.4ms 7.7MB 513ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cpp 121ms 3.9ms 3.6MB 107ms 0ms g++ 11.4.0
1.cpp 132ms 1.8ms 4.0MB 123ms 0ms clang++ 14.0.0-1ubuntu1.1

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-m.cpp 471ms 6.8ms 7.6MB 1820ms 0ms clang++ 14.0.0-1ubuntu1.1
8-m.cpp 488ms 8.2ms 4.2MB 1883ms 0ms g++ 11.4.0
6-im.cpp 920ms 3.4ms 7.4MB 3587ms 7ms clang++ 14.0.0-1ubuntu1.1
6-im.cpp 925ms 1.0ms 4.2MB 3613ms 0ms g++ 11.4.0

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-m.cpp 129ms 6.4ms 7.4MB 460ms 3ms clang++ 14.0.0-1ubuntu1.1
8-m.cpp 129ms 0.3ms 4.1MB 477ms 0ms g++ 11.4.0
6-im.cpp 244ms 4.5ms 4.2MB 917ms 0ms g++ 11.4.0
6-im.cpp 246ms 5.8ms 7.3MB 917ms 0ms clang++ 14.0.0-1ubuntu1.1

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
8-m.cpp 40ms 1.9ms 7.4MB 110ms 0ms clang++ 14.0.0-1ubuntu1.1
8-m.cpp 40ms 0.7ms 4.0MB 127ms 0ms g++ 11.4.0
6-im.cpp 67ms 0.7ms 7.1MB 227ms 0ms clang++ 14.0.0-1ubuntu1.1
6-im.cpp 68ms 0.6ms 4.0MB 240ms 0ms g++ 11.4.0