tdlight-team/tdlight
tdlight-team/tdlight
1
1
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add array-based duplicate checker to benchmark.

Browse Source
This commit is contained in:
levlam 2021-08-22 10:49:40 +03:00
parent f9b71104d4
commit a2f3c4c788
1 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
benchmark/bench_misc.cpp
View File

@ -31,6 +31,8 @@
#include <semaphore.h>
#endif
#include <algorithm>
#include <array>
#include <atomic>
#include <cstdint>
#include <set>
@ -531,6 +533,42 @@ class MessageIdDuplicateCheckerNewSimple {
std::set<td::int64> saved_message_ids_;
};
template <size_t MAX_SAVED_MESSAGE_IDS>
class MessageIdDuplicateCheckerArray {
public:
static td::string get_description() {
return PSTRING() << "Array" << MAX_SAVED_MESSAGE_IDS;
}
td::Status check(td::int64 message_id) {
if (end_pos == 2 * MAX_SAVED_MESSAGE_IDS) {
std::copy_n(&saved_message_ids_[MAX_SAVED_MESSAGE_IDS], MAX_SAVED_MESSAGE_IDS, &saved_message_ids_[0]);
end_pos = MAX_SAVED_MESSAGE_IDS;
}
if (end_pos == 0 || message_id > saved_message_ids_[end_pos - 1]) {
// fast path
saved_message_ids_[end_pos++] = message_id;
return td::Status::OK();
}
if (end_pos >= MAX_SAVED_MESSAGE_IDS && message_id < saved_message_ids_[0]) {
return td::Status::Error(2, PSLICE() << "Ignore very old message_id "
<< td::tag("oldest message_id", saved_message_ids_[0])
<< td::tag("got message_id", message_id));
}
auto it = std::lower_bound(&saved_message_ids_[0], &saved_message_ids_[end_pos], message_id);
if (*it == message_id) {
return td::Status::Error(1, PSLICE() << "Ignore duplicated message_id " << td::tag("message_id", message_id));
}
std::copy_backward(it, &saved_message_ids_[end_pos], &saved_message_ids_[end_pos + 1]);
*it = message_id;
++end_pos;
return td::Status::OK();
}
private:
std::array<td::int64, 2 * MAX_SAVED_MESSAGE_IDS> saved_message_ids_;
std::size_t end_pos = 0;
};
template <class T>
class DuplicateCheckerBench final : public td::Benchmark {
td::string get_description() const final {
@ -571,6 +609,8 @@ int main() {
td::bench(DuplicateCheckerBenchRepeat<MessageIdDuplicateCheckerNewOther>());
td::bench(DuplicateCheckerBenchRepeat<MessageIdDuplicateCheckerNewSimple>());
td::bench(DuplicateCheckerBenchRepeat<MessageIdDuplicateCheckerNew<300>>());
td::bench(DuplicateCheckerBenchRepeat<MessageIdDuplicateCheckerArray<1000>>());
td::bench(DuplicateCheckerBenchRepeat<MessageIdDuplicateCheckerArray<300>>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerOld>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerNew<1000>>());
@ -579,6 +619,8 @@ int main() {
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerNew<300>>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerNew<100>>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerNew<10>>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerArray<1000>>());
td::bench(DuplicateCheckerBench<MessageIdDuplicateCheckerArray<300>>());
#if !TD_THREAD_UNSUPPORTED
for (int i = 1; i <= 16; i *= 2) {