72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
/*
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Minetest
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Copyright (C) 2022 Minetest Authors
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program 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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "benchmark_setup.h"
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#include "util/serialize.h"
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#include <sstream>
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#include <ios>
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// Builds a string of exactly `length` characters by repeating `s` (rest cut off)
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static std::string makeRepeatTo(const std::string &s, size_t length)
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{
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std::string v;
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v.reserve(length + s.size());
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for (size_t i = 0; i < length; i += s.size()) {
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v += s;
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}
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v.resize(length);
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return v;
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}
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#define BENCH3(_label, _chars, _length, _lengthlabel) \
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BENCHMARK_ADVANCED("serializeJsonStringIfNeeded_" _lengthlabel "_" _label)(Catch::Benchmark::Chronometer meter) { \
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std::string s = makeRepeatTo(_chars, _length); \
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meter.measure([&] { return serializeJsonStringIfNeeded(s); }); \
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}; \
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BENCHMARK_ADVANCED("deSerializeJsonStringIfNeeded_" _lengthlabel "_" _label)(Catch::Benchmark::Chronometer meter) { \
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std::string s = makeRepeatTo(_chars, _length); \
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std::string serialized = serializeJsonStringIfNeeded(s); \
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std::istringstream is(serialized, std::ios::binary); \
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meter.measure([&] { \
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is.clear(); \
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is.seekg(0, std::ios::beg); \
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return deSerializeJsonStringIfNeeded(is); \
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}); \
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};
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/* Both with and without a space character (' ') */
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#define BENCH2(_label, _chars, _length, _lengthlabel) \
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BENCH3(_label, _chars, _length, _lengthlabel) \
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BENCH3(_label "_with_space", " " _chars, _length, _lengthlabel) \
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/* Iterate over input lengths */
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#define BENCH1(_label, _chars) \
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BENCH2(_label, _chars, 10, "small") \
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BENCH2(_label, _chars, 10000, "large")
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/* Iterate over character sets */
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#define BENCH_ALL() \
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BENCH1("alpha", "abcdefghijklmnopqrstuvwxyz") \
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BENCH1("escaped", "\"\\/\b\f\n\r\t") \
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BENCH1("nonascii", "\xf0\xff")
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TEST_CASE("benchmark_serialize") {
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BENCH_ALL()
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}
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