0588de76bb
Reviewers: buda Reviewed By: buda Subscribers: pullbot Differential Revision: https://phabricator.memgraph.io/D526
68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
#include "common.hpp"
|
|
|
|
constexpr size_t THREADS_NO = std::min(max_no_threads, 8);
|
|
constexpr size_t op_per_thread = 1e5;
|
|
// Depending on value there is a possiblity of numerical overflow
|
|
constexpr size_t max_number = 10;
|
|
constexpr size_t no_insert_for_one_delete = 2;
|
|
|
|
// TODO: document the test
|
|
|
|
// This test checks remove method under pressure.
|
|
// Threads will try to insert and remove keys aproximetly in the same order.
|
|
// This will force threads to compete intensly with each other.
|
|
// Calls of remove method are interleaved with insert calls.
|
|
int main(int argc, char **argv) {
|
|
google::InitGoogleLogging(argv[0]);
|
|
|
|
memory_check(THREADS_NO, [] {
|
|
map_t skiplist;
|
|
|
|
auto futures = run<std::pair<long long, long long>>(
|
|
THREADS_NO, skiplist, [](auto acc, auto index) {
|
|
auto rand_op = rand_gen_bool(no_insert_for_one_delete);
|
|
long long downcount = op_per_thread;
|
|
long long sum = 0;
|
|
long long count = 0;
|
|
|
|
for (int i = 0; downcount > 0; i++) {
|
|
auto data = i % max_number;
|
|
if (rand_op()) {
|
|
auto t = i;
|
|
while (t > 0) {
|
|
if (acc.remove(t)) {
|
|
sum -= t % max_number;
|
|
downcount--;
|
|
count--;
|
|
break;
|
|
}
|
|
t--;
|
|
}
|
|
} else {
|
|
if (acc.insert(i, data).second) {
|
|
sum += data;
|
|
count++;
|
|
downcount--;
|
|
}
|
|
}
|
|
}
|
|
return std::pair<long long, long long>(sum, count);
|
|
});
|
|
|
|
auto accessor = skiplist.access();
|
|
long long sums = 0;
|
|
long long counters = 0;
|
|
for (auto &data : collect(futures)) {
|
|
sums += data.second.first;
|
|
counters += data.second.second;
|
|
}
|
|
|
|
for (auto &e : accessor) {
|
|
sums -= e.second;
|
|
}
|
|
permanent_assert(sums == 0, "Aproximetly Same values are present");
|
|
check_size<map_t>(accessor, counters);
|
|
check_order<map_t>(accessor);
|
|
});
|
|
}
|