value_variant_any.txt

std::variant<int, double, CopyableUniquePtr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > size 16
std::variant<int, double, std::shared_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > size 24
std::variant<int, double, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool> size 40
std::variant<int, int, short> size 8
std::tuple<int, double, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > size 48
std::any size 16
std::optional<long> size 16
std::optional<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > size 40
std::unique_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::default_delete<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > size 8

user cpu : 0s 0us
sys cpu : 0s 6091us
max rss : 40948 KB / 39.9883 MB
page reclaims : 552
page faults : 0
voluntary switches : 0
involuntary switches : 0

user cpu : 0s 0us
sys cpu : 0s 4217us
max rss : 16420 KB / 16.0352 MB
page reclaims : 544
page faults : 0
voluntary switches : 0
involuntary switches : 0


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2023-06-11T21:34:40+08:00
Running ./bin/value_variant_any
Run on (8 X 2904 MHz CPU s)
CPU Caches:
  L1 Data 32 KiB (x8)
  L1 Instruction 32 KiB (x8)
  L2 Unified 256 KiB (x8)
  L3 Unified 16384 KiB (x1)
Load Average: 4.12, 4.54, 3.26
-------------------------------------------------------------------------------------
Benchmark                                           Time             CPU   Iterations
-------------------------------------------------------------------------------------
BM_Variant<std::string>                          20.1 ns         20.4 ns     30982293
BM_Variant<std::unique_ptr<std::string>>         24.5 ns         24.8 ns     29098488
BM_Variant<std::shared_ptr<std::string>>         27.3 ns         27.5 ns     26509199
BM_Variant<std::optional<std::string>>           21.8 ns         22.0 ns     32048480
BM_Variant<CopyableUniquePtr<std::string>>       30.2 ns         30.4 ns     22510748
BM_Variant<int64_t>                             0.463 ns        0.465 ns   1000000000
BM_Any                                           31.2 ns         31.3 ns     24099878
BM_AnyPod                                        2.18 ns         2.18 ns    325307494
BM_Optional                                      14.2 ns         14.2 ns     47487623
BM_CopyableUniquePtrInt                         0.487 ns        0.487 ns   1000000000
BM_CopyableUniquePtrString                       30.9 ns         30.9 ns     21965480