308 lines
9.0 KiB
C++
308 lines
9.0 KiB
C++
#include <unordered_set>
|
|
#include <vector>
|
|
#include <functional>
|
|
#include <cstdint>
|
|
#include <cstdlib>
|
|
#include <cstring>
|
|
|
|
#include "benchmark/benchmark.h"
|
|
|
|
#include "ContainerBenchmarks.hpp"
|
|
#include "GenerateInput.hpp"
|
|
#include "test_macros.h"
|
|
|
|
using namespace ContainerBenchmarks;
|
|
|
|
constexpr std::size_t TestNumInputs = 1024;
|
|
|
|
template <class _Size>
|
|
inline TEST_ALWAYS_INLINE
|
|
_Size loadword(const void* __p) {
|
|
_Size __r;
|
|
std::memcpy(&__r, __p, sizeof(__r));
|
|
return __r;
|
|
}
|
|
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t rotate_by_at_least_1(std::size_t __val, int __shift) {
|
|
return (__val >> __shift) | (__val << (64 - __shift));
|
|
}
|
|
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t hash_len_16(std::size_t __u, std::size_t __v) {
|
|
const std::size_t __mul = 0x9ddfea08eb382d69ULL;
|
|
std::size_t __a = (__u ^ __v) * __mul;
|
|
__a ^= (__a >> 47);
|
|
std::size_t __b = (__v ^ __a) * __mul;
|
|
__b ^= (__b >> 47);
|
|
__b *= __mul;
|
|
return __b;
|
|
}
|
|
|
|
|
|
template <std::size_t _Len>
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t hash_len_0_to_8(const char* __s) {
|
|
static_assert(_Len == 4 || _Len == 8, "");
|
|
const uint64_t __a = loadword<uint32_t>(__s);
|
|
const uint64_t __b = loadword<uint32_t>(__s + _Len - 4);
|
|
return hash_len_16(_Len + (__a << 3), __b);
|
|
}
|
|
|
|
struct UInt32Hash {
|
|
UInt32Hash() = default;
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t operator()(uint32_t data) const {
|
|
return hash_len_0_to_8<4>(reinterpret_cast<const char*>(&data));
|
|
}
|
|
};
|
|
|
|
struct UInt64Hash {
|
|
UInt64Hash() = default;
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t operator()(uint64_t data) const {
|
|
return hash_len_0_to_8<8>(reinterpret_cast<const char*>(&data));
|
|
}
|
|
};
|
|
|
|
struct UInt128Hash {
|
|
UInt128Hash() = default;
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t operator()(__uint128_t data) const {
|
|
const __uint128_t __mask = static_cast<std::size_t>(-1);
|
|
const std::size_t __a = (std::size_t)(data & __mask);
|
|
const std::size_t __b = (std::size_t)((data & (__mask << 64)) >> 64);
|
|
return hash_len_16(__a, rotate_by_at_least_1(__b + 16, 16)) ^ __b;
|
|
}
|
|
};
|
|
|
|
struct UInt32Hash2 {
|
|
UInt32Hash2() = default;
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t operator()(uint32_t data) const {
|
|
const uint32_t __m = 0x5bd1e995;
|
|
const uint32_t __r = 24;
|
|
uint32_t __h = 4;
|
|
uint32_t __k = data;
|
|
__k *= __m;
|
|
__k ^= __k >> __r;
|
|
__k *= __m;
|
|
__h *= __m;
|
|
__h ^= __k;
|
|
__h ^= __h >> 13;
|
|
__h *= __m;
|
|
__h ^= __h >> 15;
|
|
return __h;
|
|
}
|
|
};
|
|
|
|
struct UInt64Hash2 {
|
|
UInt64Hash2() = default;
|
|
inline TEST_ALWAYS_INLINE
|
|
std::size_t operator()(uint64_t data) const {
|
|
return hash_len_0_to_8<8>(reinterpret_cast<const char*>(&data));
|
|
}
|
|
};
|
|
|
|
//----------------------------------------------------------------------------//
|
|
// BM_Hash
|
|
// ---------------------------------------------------------------------------//
|
|
|
|
template <class HashFn, class GenInputs>
|
|
void BM_Hash(benchmark::State& st, HashFn fn, GenInputs gen) {
|
|
auto in = gen(st.range(0));
|
|
const auto end = in.data() + in.size();
|
|
std::size_t last_hash = 0;
|
|
benchmark::DoNotOptimize(&last_hash);
|
|
while (st.KeepRunning()) {
|
|
for (auto it = in.data(); it != end; ++it) {
|
|
benchmark::DoNotOptimize(last_hash += fn(*it));
|
|
}
|
|
benchmark::ClobberMemory();
|
|
}
|
|
}
|
|
|
|
BENCHMARK_CAPTURE(BM_Hash,
|
|
uint32_random_std_hash,
|
|
std::hash<uint32_t>{},
|
|
getRandomIntegerInputs<uint32_t>) -> Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_Hash,
|
|
uint32_random_custom_hash,
|
|
UInt32Hash{},
|
|
getRandomIntegerInputs<uint32_t>) -> Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_Hash,
|
|
uint32_top_std_hash,
|
|
std::hash<uint32_t>{},
|
|
getSortedTopBitsIntegerInputs<uint32_t>) -> Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_Hash,
|
|
uint32_top_custom_hash,
|
|
UInt32Hash{},
|
|
getSortedTopBitsIntegerInputs<uint32_t>) -> Arg(TestNumInputs);
|
|
|
|
|
|
//----------------------------------------------------------------------------//
|
|
// BM_InsertValue
|
|
// ---------------------------------------------------------------------------//
|
|
|
|
|
|
// Sorted Assending //
|
|
BENCHMARK_CAPTURE(BM_InsertValue,
|
|
unordered_set_uint32,
|
|
std::unordered_set<uint32_t>{},
|
|
getRandomIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_InsertValue,
|
|
unordered_set_uint32_sorted,
|
|
std::unordered_set<uint32_t>{},
|
|
getSortedIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
// Top Bytes //
|
|
BENCHMARK_CAPTURE(BM_InsertValue,
|
|
unordered_set_top_bits_uint32,
|
|
std::unordered_set<uint32_t>{},
|
|
getSortedTopBitsIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_InsertValueRehash,
|
|
unordered_set_top_bits_uint32,
|
|
std::unordered_set<uint32_t, UInt32Hash>{},
|
|
getSortedTopBitsIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
// String //
|
|
BENCHMARK_CAPTURE(BM_InsertValue,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_InsertValueRehash,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
//----------------------------------------------------------------------------//
|
|
// BM_Find
|
|
// ---------------------------------------------------------------------------//
|
|
|
|
// Random //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_random_uint64,
|
|
std::unordered_set<uint64_t>{},
|
|
getRandomIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_random_uint64,
|
|
std::unordered_set<uint64_t, UInt64Hash>{},
|
|
getRandomIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
// Sorted //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_sorted_uint64,
|
|
std::unordered_set<uint64_t>{},
|
|
getSortedIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_sorted_uint64,
|
|
std::unordered_set<uint64_t, UInt64Hash>{},
|
|
getSortedIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
|
|
// Sorted //
|
|
#if 1
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_sorted_uint128,
|
|
std::unordered_set<__uint128_t, UInt128Hash>{},
|
|
getSortedTopBitsIntegerInputs<__uint128_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_sorted_uint128,
|
|
std::unordered_set<__uint128_t, UInt128Hash>{},
|
|
getSortedTopBitsIntegerInputs<__uint128_t>)->Arg(TestNumInputs);
|
|
#endif
|
|
|
|
// Sorted //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_sorted_uint32,
|
|
std::unordered_set<uint32_t>{},
|
|
getSortedIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_sorted_uint32,
|
|
std::unordered_set<uint32_t, UInt32Hash2>{},
|
|
getSortedIntegerInputs<uint32_t>)->Arg(TestNumInputs);
|
|
|
|
// Sorted Ascending //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_sorted_large_uint64,
|
|
std::unordered_set<uint64_t>{},
|
|
getSortedLargeIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_sorted_large_uint64,
|
|
std::unordered_set<uint64_t, UInt64Hash>{},
|
|
getSortedLargeIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
|
|
// Top Bits //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_top_bits_uint64,
|
|
std::unordered_set<uint64_t>{},
|
|
getSortedTopBitsIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_top_bits_uint64,
|
|
std::unordered_set<uint64_t, UInt64Hash>{},
|
|
getSortedTopBitsIntegerInputs<uint64_t>)->Arg(TestNumInputs);
|
|
|
|
// String //
|
|
BENCHMARK_CAPTURE(BM_Find,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_FindRehash,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
BENCHMARK_CAPTURE(BM_InsertDuplicate,
|
|
unordered_set_int,
|
|
std::unordered_set<int>{},
|
|
getRandomIntegerInputs<int>)->Arg(TestNumInputs);
|
|
BENCHMARK_CAPTURE(BM_InsertDuplicate,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_EmplaceDuplicate,
|
|
unordered_set_int,
|
|
std::unordered_set<int>{},
|
|
getRandomIntegerInputs<int>)->Arg(TestNumInputs);
|
|
BENCHMARK_CAPTURE(BM_EmplaceDuplicate,
|
|
unordered_set_string,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_InsertDuplicate,
|
|
unordered_set_int_insert_arg,
|
|
std::unordered_set<int>{},
|
|
getRandomIntegerInputs<int>)->Arg(TestNumInputs);
|
|
BENCHMARK_CAPTURE(BM_InsertDuplicate,
|
|
unordered_set_string_insert_arg,
|
|
std::unordered_set<std::string>{},
|
|
getRandomStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_EmplaceDuplicate,
|
|
unordered_set_int_insert_arg,
|
|
std::unordered_set<int>{},
|
|
getRandomIntegerInputs<unsigned>)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_CAPTURE(BM_EmplaceDuplicate,
|
|
unordered_set_string_arg,
|
|
std::unordered_set<std::string>{},
|
|
getRandomCStringInputs)->Arg(TestNumInputs);
|
|
|
|
BENCHMARK_MAIN();
|