BenchmarkRepeatFunction.java

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.operator.scalar;

import com.facebook.presto.common.Page;
import com.facebook.presto.common.type.ArrayType;
import com.facebook.presto.common.type.Type;
import com.facebook.presto.metadata.MetadataManager;
import com.facebook.presto.operator.DriverYieldSignal;
import com.facebook.presto.operator.project.PageProcessor;
import com.facebook.presto.spi.function.FunctionHandle;
import com.facebook.presto.spi.relation.CallExpression;
import com.facebook.presto.spi.relation.ConstantExpression;
import com.facebook.presto.spi.relation.RowExpression;
import com.facebook.presto.sql.gen.ExpressionCompiler;
import com.facebook.presto.sql.gen.PageFunctionCompiler;
import com.google.common.collect.ImmutableList;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OperationsPerInvocation;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import org.openjdk.jmh.runner.options.VerboseMode;
import org.openjdk.jmh.runner.options.WarmupMode;

import java.util.List;
import java.util.Optional;
import java.util.concurrent.TimeUnit;

import static com.facebook.presto.common.type.IntegerType.INTEGER;
import static com.facebook.presto.memory.context.AggregatedMemoryContext.newSimpleAggregatedMemoryContext;
import static com.facebook.presto.metadata.MetadataManager.createTestMetadataManager;
import static com.facebook.presto.sql.analyzer.TypeSignatureProvider.fromTypes;
import static com.facebook.presto.testing.TestingConnectorSession.SESSION;

@SuppressWarnings("MethodMayBeStatic")
@State(Scope.Thread)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Fork(2)
@Warmup(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@BenchmarkMode(Mode.AverageTime)
public class BenchmarkRepeatFunction
{
    private static final int POSITIONS = 1000;

    public static void main(String[] args)
            throws Throwable
    {
        // assure the benchmarks are valid before running
        BenchmarkData data = new BenchmarkData();
        data.setup();
        new BenchmarkRepeatFunction().benchmark(data);

        Options options = new OptionsBuilder()
                .verbosity(VerboseMode.NORMAL)
                .warmupMode(WarmupMode.INDI)
                .include(".*" + BenchmarkRepeatFunction.class.getSimpleName() + ".*")
                .build();
        new Runner(options).run();
    }

    @Benchmark
    @OperationsPerInvocation(POSITIONS)
    public List<Optional<Page>> benchmark(BenchmarkData data)
    {
        return ImmutableList.copyOf(
                data.getPageProcessor().process(
                        SESSION.getSqlFunctionProperties(),
                        new DriverYieldSignal(),
                        newSimpleAggregatedMemoryContext().newLocalMemoryContext(PageProcessor.class.getSimpleName()),
                        data.getPage()));
    }

    @SuppressWarnings("FieldMayBeFinal")
    @State(Scope.Thread)
    public static class BenchmarkData
    {
        private String name = "repeat";

        @Param({"10", "100", "1000"})
        private int repeatArgument = 100;

        private Page page;
        private PageProcessor pageProcessor;

        @Setup
        public void setup()
        {
            MetadataManager metadata = createTestMetadataManager();
            ExpressionCompiler compiler = new ExpressionCompiler(metadata, new PageFunctionCompiler(metadata, 0));

            Type inputType = INTEGER;
            ConstantExpression inputValue = new ConstantExpression((long) 2, inputType);
            ConstantExpression repeatNum = new ConstantExpression((long) repeatArgument, INTEGER);

            ImmutableList.Builder<RowExpression> projectionsBuilder = ImmutableList.builder();

            FunctionHandle functionHandle = metadata.getFunctionAndTypeManager().lookupFunction(name, fromTypes(inputType, INTEGER));
            projectionsBuilder.add(new CallExpression(
                    name,
                    functionHandle,
                    new ArrayType(inputType),
                    ImmutableList.of(inputValue, repeatNum)));

            ImmutableList<RowExpression> projections = projectionsBuilder.build();
            pageProcessor = compiler.compilePageProcessor(SESSION.getSqlFunctionProperties(), Optional.empty(), projections).get();
            page = new Page(10000);
        }

        public PageProcessor getPageProcessor()
        {
            return pageProcessor;
        }

        public Page getPage()
        {
            return page;
        }
    }
}