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Benchmark 'add' and 'rm' of generic_mtrie #4574
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Original file line number | Diff line number | Diff line change |
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/* SPDX-License-Identifier: MPL-2.0 */ | ||
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#if __cplusplus >= 201103L | ||
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#include "generic_mtrie_impl.hpp" | ||
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#include <chrono> | ||
#include <cstdio> | ||
#include <random> | ||
#include <ratio> | ||
#include <vector> | ||
#include <string> | ||
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const std::size_t nprefix = 1000000; | ||
const std::size_t samples = 10; | ||
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template <class T> | ||
void benchmark_add ( | ||
T &subscriptions_, | ||
std::vector<std::pair<zmq::generic_mtrie_t<uint64_t>::prefix_t, size_t> > | ||
&prefixes_, | ||
uint64_t *pipes_) | ||
{ | ||
using namespace std::chrono; | ||
std::vector<duration<long, std::nano> > samples_vec; | ||
samples_vec.reserve (samples); | ||
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for (std::size_t run = 0; run < samples; ++run) { | ||
duration<long, std::nano> interval (0); | ||
for (std::size_t i = 0; i < prefixes_.size (); i++) { | ||
auto start = steady_clock::now (); | ||
subscriptions_.add (prefixes_[i].first, prefixes_[i].second, | ||
&pipes_[i]); | ||
auto end = steady_clock::now (); | ||
interval += end - start; | ||
} | ||
samples_vec.push_back (interval / prefixes_.size ()); | ||
} | ||
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std::size_t sum = 0; | ||
for (const auto &sample : samples_vec) | ||
sum += sample.count (); | ||
std::printf ("Average operation time = %.1lf ns\n", | ||
static_cast<double> (sum) / samples); | ||
} | ||
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template <class T> | ||
void benchmark_rm ( | ||
T &subscriptions_, | ||
std::vector<std::pair<zmq::generic_mtrie_t<uint64_t>::prefix_t, size_t> > | ||
&prefixes_, | ||
uint64_t *pipes_) | ||
{ | ||
using namespace std::chrono; | ||
std::vector<duration<long, std::nano> > samples_vec; | ||
samples_vec.reserve (samples); | ||
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for (std::size_t run = 0; run < samples; ++run) { | ||
duration<long, std::nano> interval (0); | ||
for (std::size_t i = 0; i < prefixes_.size (); i++) { | ||
auto start = steady_clock::now (); | ||
subscriptions_.rm (prefixes_[i].first, prefixes_[i].second, | ||
&pipes_[i]); | ||
auto end = steady_clock::now (); | ||
interval += end - start; | ||
} | ||
samples_vec.push_back (interval / prefixes_.size ()); | ||
} | ||
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std::size_t sum = 0; | ||
for (const auto &sample : samples_vec) | ||
sum += sample.count (); | ||
std::printf ("Average operation time = %.1lf ns\n", | ||
static_cast<double> (sum) / samples); | ||
} | ||
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int main () | ||
{ | ||
// Generate input set. | ||
uint64_t pipes[nprefix]; | ||
std::vector<std::pair<zmq::generic_mtrie_t<uint64_t>::prefix_t, size_t> > | ||
prefixes; | ||
prefixes.reserve (nprefix); | ||
for (std::size_t i = 0; i < nprefix; ++i) { | ||
char prefix[100]; | ||
size_t len = sprintf (prefix, "prefix_%lu", i); | ||
prefixes.push_back (std::make_pair ( | ||
reinterpret_cast<zmq::generic_mtrie_t<uint64_t>::prefix_t> (prefix), | ||
len)); | ||
} | ||
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// Initialize data structures. | ||
// | ||
// Keeping initialization out of the benchmarking function helps | ||
// heaptrack detect peak memory consumption of the radix tree. | ||
zmq::generic_mtrie_t<uint64_t> mtrie; | ||
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// Create a benchmark. | ||
std::printf ("prefixes = %llu\n", | ||
static_cast<unsigned long long> (nprefix)); | ||
std::puts ("[generic_mtrie::add]"); | ||
benchmark_add (mtrie, prefixes, pipes); | ||
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std::puts ("[generic_mtrie::rm]"); | ||
benchmark_rm (mtrie, prefixes, pipes); | ||
} | ||
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#else | ||
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int main () | ||
{ | ||
} | ||
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#endif |
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why is this necessary?