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update test program to randomize keys after vector resize.

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greg
2020-07-26 21:59:42 -04:00
parent 2fdf7f0787
commit 0fe48402ec
1 changed files with 17 additions and 13 deletions
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examples/matt.cc
+17 -13
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@@ -57,10 +57,12 @@ public:
}
};
using Perturb = std::function<void (std::vector<uint64_t> &)>;
// --------------------------------------------------------------------------
// --------------------------------------------------------------------------
template<class Set, size_t N>
void test(const char *name, std::function<void (std::vector<uint64_t> &)> perturb)
void test(const char *name, Perturb perturb1, Perturb perturb2)
{
Set s;
@@ -70,11 +72,13 @@ void test(const char *name, std::function<void (std::vector<uint64_t> &)> pertur
for (uint32_t i=0; i<N; ++i)
s.insert(rsu.next());
std::vector<uint64_t> order(s.begin(), s.end());
perturb(order);
order.resize(N/4);
std::vector<uint64_t> order(s.begin(), s.end()); // contains sorted, randomly generated keys
Timer t(name);
perturb1(order);
order.resize(N/4);
perturb2(order);
Timer t(name); // start timer
Set c(order.begin(), order.end());
}
@@ -100,21 +104,21 @@ int main()
constexpr uint32_t num_keys = 10000000;
using T = uint64_t;
test<phmap::flat_hash_set<T>, num_keys>("flat_hash_set ordered ", noop);
test<phmap::flat_hash_set<T>, num_keys>("flat_hash_set ordered ", noop, shuffle);
test<phmap::flat_hash_set<T>, num_keys>("flat_hash_set shuffled", shuffle);
test<phmap::flat_hash_set<T>, num_keys>("flat_hash_set shuffled", shuffle, shuffle);
test<pset<T, 4>, num_keys>("parallel (16) ordered ", noop);
test<pset<T, 4>, num_keys>("parallel (16) ordered ", noop, shuffle);
test<pset<T, 4>, num_keys>("parallel (16) shuffled", shuffle);
test<pset<T, 4>, num_keys>("parallel (16) shuffled", shuffle, shuffle);
test<pset<T, 6>, num_keys>("parallel (64) ordered ", noop);
test<pset<T, 6>, num_keys>("parallel (64) ordered ", noop, shuffle);
test<pset<T, 6>, num_keys>("parallel (64) shuffled", shuffle);
test<pset<T, 6>, num_keys>("parallel (64) shuffled", shuffle, shuffle);
test<pset<T, 8>, num_keys>("parallel (256) ordered ", noop);
test<pset<T, 8>, num_keys>("parallel (256) ordered ", noop, shuffle);
test<pset<T, 8>, num_keys>("parallel (256) shuffled", shuffle);
test<pset<T, 8>, num_keys>("parallel (256) shuffled", shuffle, shuffle);
}