memgraph/tests/benchmark/query/planner.cpp
Teon Banek 591d086013 Map symbols to expansions to speed up variable planning
Summary:
Test variable planning BFS.
Add more tests for variably planning ExpandVariable.
Don't recreate the whole matching when varying expansions.
Use explicit constructors in private planner classes.

Reviewers: mislav.bradac, florijan

Reviewed By: mislav.bradac

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D691
2017-08-23 11:39:45 +02:00

51 lines
1.8 KiB
C++

#include <string>
#include <benchmark/benchmark_api.h>
#include "database/dbms.hpp"
#include "query/frontend/semantic/symbol_generator.hpp"
#include "query/plan/planner.hpp"
// Add chained MATCH (node1) -- (node2), MATCH (node2) -- (node3) ... clauses.
static void AddMatches(int num_matches, query::AstTreeStorage &storage) {
for (int i = 0; i < num_matches; ++i) {
auto *match = storage.Create<query::Match>();
auto *pattern = storage.Create<query::Pattern>();
pattern->identifier_ = storage.Create<query::Identifier>("path");
match->patterns_.emplace_back(pattern);
std::string node1_name = "node" + std::to_string(i - 1);
pattern->atoms_.emplace_back(storage.Create<query::NodeAtom>(
storage.Create<query::Identifier>(node1_name)));
pattern->atoms_.emplace_back(storage.Create<query::EdgeAtom>(
storage.Create<query::Identifier>("edge" + std::to_string(i)),
query::EdgeAtom::Direction::BOTH));
pattern->atoms_.emplace_back(storage.Create<query::NodeAtom>(
storage.Create<query::Identifier>("node" + std::to_string(i))));
storage.query()->clauses_.emplace_back(match);
}
}
static void BM_MakeLogicalPlan(benchmark::State &state) {
while (state.KeepRunning()) {
state.PauseTiming();
Dbms dbms;
auto dba = dbms.active();
query::AstTreeStorage storage;
int num_matches = state.range(0);
AddMatches(num_matches, storage);
query::SymbolTable symbol_table;
query::SymbolGenerator symbol_generator(symbol_table);
storage.query()->Accept(symbol_generator);
state.ResumeTiming();
query::plan::MakeLogicalPlan<query::plan::VariableStartPlanner>(
storage, symbol_table, *dba);
}
};
BENCHMARK(BM_MakeLogicalPlan)
->RangeMultiplier(2)
->Range(50, 400)
->Unit(benchmark::kMillisecond);
BENCHMARK_MAIN();