cppbenchmark/results/i7-13700KF/value_variant_any.txt at master · firedtoad/cppbenchmark · GitHub

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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 3746us
sys cpu : 0s 0us
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 0us
max rss : 16420 KB / 16.0352 MB
page reclaims : 544
page faults : 0
voluntary switches : 0
involuntary switches : 0


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2023-06-16T17:44:39+08:00
Running ./bin/value_variant_any
Run on (16 X 3417.59 MHz CPU s)
CPU Caches:
  L1 Data 48 KiB (x16)
  L1 Instruction 32 KiB (x16)
  L2 Unified 2048 KiB (x16)
  L3 Unified 30720 KiB (x1)
Load Average: 4.04, 3.95, 2.82
-------------------------------------------------------------------------------------
Benchmark                                           Time             CPU   Iterations
-------------------------------------------------------------------------------------
BM_Variant<std::string>                          12.1 ns         12.1 ns     54628459
BM_Variant<std::unique_ptr<std::string>>         16.9 ns         16.9 ns     41485420
BM_Variant<std::shared_ptr<std::string>>         18.0 ns         18.0 ns     38351259
BM_Variant<std::optional<std::string>>           13.2 ns         13.2 ns     55484664
BM_Variant<CopyableUniquePtr<std::string>>       20.2 ns         20.2 ns     35246483
BM_Variant<int64_t>                             0.382 ns        0.382 ns   1000000000
BM_Any                                           19.7 ns         19.7 ns     35238619
BM_AnyPod                                        1.34 ns         1.34 ns    524387510
BM_Optional                                      9.83 ns         9.83 ns     72778920
BM_CopyableUniquePtrInt                         0.386 ns        0.386 ns   1000000000
BM_CopyableUniquePtrString                       20.2 ns         20.2 ns     34914548