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Storages: Use std::vector<UInt8> in BitmapFilter (#9552)
ref #6834 Signed-off-by: Lloyd-Pottiger <[email protected]> Co-authored-by: Lloyd-Pottiger <[email protected]>
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dbms/src/Storages/DeltaMerge/BitmapFilter/tests/bench_bitmap.cpp
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| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| #include <Core/Defines.h> | ||
| #include <benchmark/benchmark.h> | ||
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| #include <random> | ||
| #include <vector> | ||
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| namespace DB::bench | ||
| { | ||
| constexpr size_t TEST_BITMAP_SIZE = 65536; | ||
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| template <typename T> | ||
| void bitmapAndStd(benchmark::State & state) | ||
| { | ||
| std::vector<T> a(TEST_BITMAP_SIZE); | ||
| std::vector<T> b(TEST_BITMAP_SIZE); | ||
| for (auto _ : state) | ||
| { | ||
| std::array<T, TEST_BITMAP_SIZE> c; | ||
| std::transform(a.begin(), a.end(), b.begin(), c.begin(), [](const auto i, const auto j) { return i && j; }); | ||
| benchmark::DoNotOptimize(c); | ||
| } | ||
| } | ||
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| static void bitmapAndBool(benchmark::State & state) | ||
| { | ||
| bitmapAndStd<bool>(state); | ||
| } | ||
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| static void bitmapAndUInt8(benchmark::State & state) | ||
| { | ||
| bitmapAndStd<UInt8>(state); | ||
| } | ||
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| std::vector<UInt32> genRandomRowIDs(size_t rowid_count, size_t bitmap_size) | ||
| { | ||
| std::vector<UInt32> row_ids(rowid_count); | ||
| std::random_device rd; | ||
| std::mt19937 gen(rd()); | ||
| for (auto & id : row_ids) | ||
| { | ||
| id = gen() % bitmap_size; | ||
| } | ||
| return row_ids; | ||
| } | ||
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| template <typename T> | ||
| void bitmapSetRowID(benchmark::State & state) | ||
| { | ||
| constexpr size_t rowid_count = 45678; | ||
| auto row_ids = genRandomRowIDs(rowid_count, TEST_BITMAP_SIZE); | ||
| for (auto _ : state) | ||
| { | ||
| std::vector<T> v(TEST_BITMAP_SIZE, static_cast<T>(0)); | ||
| for (auto id : row_ids) | ||
| { | ||
| v[id] = static_cast<T>(1); | ||
| } | ||
| benchmark::DoNotOptimize(v); | ||
| } | ||
| } | ||
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| static void bitmapSetRowIDBool(benchmark::State & state) | ||
| { | ||
| bitmapSetRowID<bool>(state); | ||
| } | ||
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| static void bitmapSetRowIDUInt8(benchmark::State & state) | ||
| { | ||
| bitmapSetRowID<UInt8>(state); | ||
| } | ||
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| template <typename T> | ||
| std::vector<T> buildBitmapByRanges(const std::vector<std::pair<size_t, size_t>> & ranges, size_t bitmap_size) | ||
| { | ||
| std::vector<T> v(bitmap_size, static_cast<T>(0)); | ||
| for (auto [start, limit] : ranges) | ||
| { | ||
| std::fill_n(v.begin() + start, limit, 1); | ||
| } | ||
| return v; | ||
| } | ||
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| template <typename T> | ||
| void bitmapSetRange(benchmark::State & state) | ||
| { | ||
| const std::vector<std::pair<size_t, size_t>> set_ranges = { | ||
| {0, 8192}, | ||
| {8192 * 2, 8192}, | ||
| {8192 * 5, 8192}, | ||
| }; | ||
| for (auto _ : state) | ||
| { | ||
| auto v = buildBitmapByRanges<T>(set_ranges, TEST_BITMAP_SIZE); | ||
| benchmark::DoNotOptimize(v); | ||
| } | ||
| } | ||
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| static void bitmapSetRangeBool(benchmark::State & state) | ||
| { | ||
| bitmapSetRange<bool>(state); | ||
| } | ||
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| static void bitmapSetRangeUInt8(benchmark::State & state) | ||
| { | ||
| bitmapSetRange<UInt8>(state); | ||
| } | ||
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| template <typename T> | ||
| void bitmapGetRange(benchmark::State & state) | ||
| { | ||
| const std::vector<std::pair<size_t, size_t>> set_ranges = { | ||
| {0, 8192}, | ||
| {8192 * 2, 8192}, | ||
| {8192 * 5, 8192}, | ||
| }; | ||
| auto v = buildBitmapByRanges<T>(set_ranges, TEST_BITMAP_SIZE); | ||
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| const std::vector<std::pair<size_t, size_t>> get_ranges = { | ||
| {1234, 8192}, | ||
| {8192 * 2 + 1234, 8192}, | ||
| {8192 * 5 + 1234, 8192}, | ||
| }; | ||
| for (auto _ : state) | ||
| { | ||
| std::array<T, 8192> f; | ||
| for (auto [start, limit] : get_ranges) | ||
| { | ||
| std::copy(v.begin() + start, v.begin() + start + limit, f.begin()); | ||
| } | ||
| benchmark::DoNotOptimize(f); | ||
| } | ||
| } | ||
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| static void bitmapGetRangeBool(benchmark::State & state) | ||
| { | ||
| bitmapGetRange<bool>(state); | ||
| } | ||
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| static void bitmapGetRangeUInt8(benchmark::State & state) | ||
| { | ||
| bitmapGetRange<UInt8>(state); | ||
| } | ||
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| BENCHMARK(bitmapAndBool); | ||
| BENCHMARK(bitmapAndUInt8); | ||
| BENCHMARK(bitmapSetRowIDBool); | ||
| BENCHMARK(bitmapSetRowIDUInt8); | ||
| BENCHMARK(bitmapSetRangeBool); | ||
| BENCHMARK(bitmapSetRangeUInt8); | ||
| BENCHMARK(bitmapGetRangeBool); | ||
| BENCHMARK(bitmapGetRangeUInt8); | ||
| } // namespace DB::bench |
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