9907303bf5
gcc complains about comparing a signed loop induction variable with an unsigned limit, or comparing an expected value and measured value. Fix by using unsigned throughout, except in one case where the signed value was needed for the data_value constructor.
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/*
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* Copyright (C) 2021 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <seastar/core/distributed.hh>
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#include <seastar/core/app-template.hh>
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#include <seastar/core/sstring.hh>
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#include <seastar/core/thread.hh>
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#include <seastar/core/reactor.hh>
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#include <fmt/core.h>
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#include <random>
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#include "utils/allocation_strategy.hh"
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#include "utils/logalloc.hh"
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#include "log.hh"
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#include "test/perf/perf.hh"
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class piggie {
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size_t _extra_size;
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public:
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size_t storage_size() const noexcept { return sizeof(piggie) + _extra_size; }
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piggie(size_t sz) noexcept : _extra_size(sz) {}
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};
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static constexpr unsigned nr_seq_allocations = 1024;
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static constexpr unsigned nr_iterations = 20000;
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static constexpr unsigned nr_sizes = 32;
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int main(int argc, char** argv) {
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app_template app;
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return app.run(argc, argv, [&app] {
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return seastar::async([&] {
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logalloc::prime_segment_pool(memory::stats().total_memory(), memory::min_free_memory()).get();
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logalloc::region reg;
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std::array<piggie*, nr_seq_allocations> objects;
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std::array<size_t, nr_sizes> sizes;
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std::random_device rd;
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std::mt19937 g(rd());
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for (unsigned i = 0; i < nr_sizes; i++) {
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sizes[i] = i;
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}
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auto& allocator = reg.allocator();
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std::chrono::duration<double> total;
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for (unsigned iter = 0; iter < nr_iterations; iter++) {
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std::shuffle(sizes.begin(), sizes.end(), g);
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void* mem = allocator.alloc<piggie>(sizeof(piggie) + sizes[0]);
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objects[0] = new (mem) piggie(sizes[0]);
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auto start = std::chrono::steady_clock::now();
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for (unsigned i = 1; i < nr_seq_allocations; i++) {
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void* mem = allocator.alloc<piggie>(sizeof(piggie) + sizes[i % nr_sizes]);
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objects[i] = new (mem) piggie(sizes[i % nr_sizes]);
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}
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total += std::chrono::steady_clock::now() - start;
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for (unsigned i = 0; i < nr_seq_allocations; i++) {
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allocator.destroy(objects[i]);
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}
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reg.full_compaction();
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}
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fmt::print("Total time: {} s\n", total.count());
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});
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});
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}
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