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98 lines
2.2 KiB
C++
98 lines
2.2 KiB
C++
#include "testing/testing.hpp"
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#include "drape/utils/vertex_decl.hpp"
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#include "base/buffer_vector.hpp"
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#include <boost/container/small_vector.hpp>
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#include <random>
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#include <vector>
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namespace vertex_buffer_tests
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{
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#ifndef DEBUG
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std::vector<uint32_t> GenerateSizes(uint32_t min, uint32_t max)
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{
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std::vector<uint32_t> res;
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std::uniform_int_distribution<uint64_t> randDist(min, max);
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std::random_device randDevice;
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std::mt19937 randEngine(randDevice());
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for (size_t i = 0; i < 1000000; ++i)
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res.push_back(randDist(randEngine));
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return res;
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}
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UNIT_TEST(VertexBuffer_Benchmark)
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{
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using ValueT = gpu::TextOutlinedStaticVertex;
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// using ValueT = gpu::TextDynamicVertex
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ValueT objs[] = {
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{{1, 1}, {2, 2}, {3, 3}},
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{{4, 4}, {5, 5}, {6, 6}},
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{{7, 7}, {8, 8}, {9, 9}},
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};
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// Very comfortable for buffer_vector<ValueT, kUpperBound>.
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uint32_t constexpr kUpperBound = 128;
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std::vector<uint32_t> sizes = GenerateSizes(16, kUpperBound);
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uint64_t t1, t2, t3, t4;
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{
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base::Timer timer;
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for (uint32_t sz : sizes)
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{
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std::vector<ValueT> v;
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for (size_t i = 0; i < sz; ++i)
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v.push_back(objs[i % std::size(objs)]);
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}
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t1 = timer.ElapsedMilliseconds();
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}
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{
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base::Timer timer;
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for (uint32_t sz : sizes)
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{
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buffer_vector<ValueT, kUpperBound> v;
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for (size_t i = 0; i < sz; ++i)
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v.push_back(objs[i % std::size(objs)]);
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}
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t2 = timer.ElapsedMilliseconds();
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}
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{
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base::Timer timer;
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for (uint32_t sz : sizes)
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{
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boost::container::small_vector<ValueT, kUpperBound> v;
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for (size_t i = 0; i < sz; ++i)
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v.push_back(objs[i % std::size(objs)]);
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}
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t3 = timer.ElapsedMilliseconds();
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}
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{
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base::Timer timer;
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for (uint32_t sz : sizes)
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{
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std::vector<ValueT> v;
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v.reserve(sz);
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for (size_t i = 0; i < sz; ++i)
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v.push_back(objs[i % std::size(objs)]);
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}
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t4 = timer.ElapsedMilliseconds();
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}
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LOG(LINFO, ("vector time:", t1, "buffer_vector time:", t2,
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"boost::small_vector time:", t3, "reserved vector time:", t4));
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TEST_LESS(t2, t1, ());
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TEST_LESS(t3, t2, ());
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// TODO: Fix this condition
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//TEST_LESS(t4, t3, ());
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}
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#endif
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} // namespace vertex_buffer_tests
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