sandbox/ods/src/sset_bench.cc

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2017-12-22 00:13:14 +00:00
// list_bench runs benchmarks against List implementations.
#include <cassert>
#include <chrono>
#include <iostream>
#include <random>
#include <string>
#include <ods/sset.h>
#include <ods/simpsset.h>
using namespace std;
static mt19937 rng;
static random_device devrand;
// reseed picks a new seed for the RNG using the system random device.
static void
reseed()
{
rng.seed(devrand());
}
static int
randint(int low, int high)
{
uniform_int_distribution<int> dist(low, high);
return dist(rng);
}
static void
benchmark(ods::SSet<int>& set, int ops)
{
for (int i = 0; i < ops; i++) {
auto op = randint(0, 3);
int val = randint(1, 100);
switch (op) {
// add
case 0:
case 1:
cout << "\tadd " << val << endl;
set.add(val);
break;
// remove
case 2:
set.remove(val);
break;
// find
case 3:
set.find(val);
break;
}
}
}
static void
run(string label, ods::SSet<int>& list, int ops)
{
std::chrono::steady_clock clock;
auto start = clock.now();
benchmark(list, ops);
auto stop = clock.now();
std::chrono::duration<double> delta = stop - start;
cerr << label << " @ " << ops << " ops: " << delta.count() << "s" << endl;
}
int
main(int argc, char *argv[])
{
int ops = 1000;
if (argc == 2) {
ops = stoi(argv[1]);
}
reseed();
ods::SimpSSet<int> us;
run("SimpSSet", us, ops);
return 0;
}