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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include <benchmark/benchmark.h>
#include "mongo/db/matcher/expression_parser.h"
#include "mongo/db/pipeline/expression.h"
#include "mongo/db/pipeline/expression_bm_fixture.h"
#include "mongo/db/pipeline/expression_context_for_test.h"
#include "mongo/db/query/query_test_service_context.h"
namespace mongo {
namespace {
class ClassicExpressionBenchmarkFixture : public ExpressionBenchmarkFixture {
void benchmarkExpression(BSONObj expressionSpec,
benchmark::State& state,
const std::vector<Document>& documents) override final {
QueryTestServiceContext testServiceContext;
auto opContext = testServiceContext.makeOperationContext();
NamespaceString nss("test.bm");
auto exprContext = make_intrusive<ExpressionContextForTest>(opContext.get(), nss);
// Build an expression.
auto expression = Expression::parseExpression(
exprContext.get(), expressionSpec, exprContext->variablesParseState);
expression = expression->optimize();
// Prepare parameters for the 'evaluate()' call.
auto variables = &(exprContext->variables);
// Run the test.
for (auto keepRunning : state) {
for (const auto& document : documents) {
benchmark::DoNotOptimize(expression->evaluate(document, variables));
}
benchmark::ClobberMemory();
}
}
};
BENCHMARK_EXPRESSIONS(ClassicExpressionBenchmarkFixture)
} // namespace
} // namespace mongo
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