cpp-worktest's Introduction

Basic C/C++

How to run
```
make all -j10
./main -v
```
Content
1. GNU C99.
2. Modern CXX11~CXX20.
3. Trails.

Makefile.

M1 (Darwin Chisato-MacBook-Pro.local 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:10:42 PDT 2024; root:xnu-10063.101.17~1/RELEASE_ARM64_T6000 arm64, Apple clang version 15.0.0 (clang-1500.3.9.4))

time make -j8
# make -j8  10.06s user 1.21s system 567% cpu 1.985 total
# 2024.4.28
# make -j10  21.30s user 2.19s system 799% cpu 2.938 total
# make main  0.63s user 0.10s system 91% cpu 0.795 total

# CPU loops per second 
# clang -O0
Alan::__loops_per_sec_(1) = 24434032
Alan::__loops_per_sec_(2) = 49660779
Alan::__loops_per_sec_(3) = 74456481
# clang -O3
Alan::__loops_per_sec_(1) = 60274124
Alan::__loops_per_sec_(2) = 122208869
Alan::__loops_per_sec_(3) = 183411630

Win64 (MINGW64_NT-10.0-19045 DESKTOP-QRS5IC2 3.4.10.x86_64 2024-03-24 15:09 UTC x86_64 Msys, clang version 11.0.0)

time make -j8
# real    0m8.094s
# user    0m42.116s
# sys     0m8.360s

# CPU loops per second
# gcc -O0
Alan::__loops_per_sec_(1) = 14481591
Alan::__loops_per_sec_(2) = 28735669
Alan::__loops_per_sec_(3) = 44418881
# gcc -O2
Alan::__loops_per_sec_(1) = 17001525
Alan::__loops_per_sec_(2) = 39107601
Alan::__loops_per_sec_(3) = 58595730

Server (Linux VM-0-16-ubuntu 5.15.0-72-generic #79-Ubuntu SMP Wed Apr 19 08:22:18 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux, Ubuntu clang version 14.0.0-1ubuntu1.1)

time make -j8
# real    0m9.438s
# user    0m30.923s
# sys     0m2.909s

# CPU loops per second
# gcc -O0
Alan::__loops_per_sec_(1) = 18292420
Alan::__loops_per_sec_(2) = 36579376
Alan::__loops_per_sec_(3) = 52902849
# gcc -O2
Alan::__loops_per_sec_(1) = 35623114
Alan::__loops_per_sec_(2) = 70066823
Alan::__loops_per_sec_(3) = 10802244

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