/*
* 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.metadata.FunctionKind;
import com.facebook.presto.metadata.MetadataManager;
import com.facebook.presto.metadata.Signature;
import com.facebook.presto.operator.project.PageProcessor;
import com.facebook.presto.spi.Page;
import com.facebook.presto.spi.PageBuilder;
import com.facebook.presto.spi.block.Block;
import com.facebook.presto.spi.block.BlockBuilder;
import com.facebook.presto.spi.block.BlockBuilderStatus;
import com.facebook.presto.spi.type.Type;
import com.facebook.presto.sql.gen.ExpressionCompiler;
import com.facebook.presto.sql.relational.CallExpression;
import com.facebook.presto.sql.relational.ConstantExpression;
import com.facebook.presto.sql.relational.InputReferenceExpression;
import com.facebook.presto.sql.relational.LambdaDefinitionExpression;
import com.facebook.presto.sql.relational.RowExpression;
import com.facebook.presto.sql.relational.VariableReferenceExpression;
import com.facebook.presto.type.ArrayType;
import com.google.common.base.Verify;
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.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 java.util.List;
import java.util.Optional;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import static com.facebook.presto.spi.function.OperatorType.GREATER_THAN;
import static com.facebook.presto.spi.type.BigintType.BIGINT;
import static com.facebook.presto.spi.type.BooleanType.BOOLEAN;
import static com.facebook.presto.spi.type.TypeSignature.parseTypeSignature;
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 BenchmarkArrayTransform
{
private static final int POSITIONS = 100_000;
private static final int ARRAY_SIZE = 4;
private static final int NUM_TYPES = 1;
private static final List<Type> TYPES = ImmutableList.of(BIGINT);
static {
Verify.verify(NUM_TYPES == TYPES.size());
}
@Benchmark
@OperationsPerInvocation(POSITIONS * ARRAY_SIZE * NUM_TYPES)
public Object benchmark(BenchmarkData data)
{
return ImmutableList.copyOf(data.getPageProcessor().process(SESSION, data.getPage()));
}
@SuppressWarnings("FieldMayBeFinal")
@State(Scope.Thread)
public static class BenchmarkData
{
private PageBuilder pageBuilder;
private Page page;
private PageProcessor pageProcessor;
@Setup
public void setup()
{
MetadataManager metadata = MetadataManager.createTestMetadataManager();
ExpressionCompiler compiler = new ExpressionCompiler(metadata);
ImmutableList.Builder<RowExpression> projectionsBuilder = ImmutableList.builder();
Block[] blocks = new Block[TYPES.size()];
Type returnType = new ArrayType(BOOLEAN);
for (int i = 0; i < TYPES.size(); i++) {
Type elementType = TYPES.get(i);
ArrayType arrayType = new ArrayType(elementType);
Signature signature = new Signature("transform", FunctionKind.SCALAR, returnType.getTypeSignature(), arrayType.getTypeSignature(), parseTypeSignature("function(bigint,boolean)"));
Signature greaterThan = new Signature("$operator$" + GREATER_THAN.name(), FunctionKind.SCALAR, BOOLEAN.getTypeSignature(), BIGINT.getTypeSignature(), BIGINT.getTypeSignature());
projectionsBuilder.add(new CallExpression(signature, returnType, ImmutableList.of(
new InputReferenceExpression(0, arrayType),
new LambdaDefinitionExpression(
ImmutableList.of(BIGINT),
ImmutableList.of("x"),
new CallExpression(greaterThan, BOOLEAN, ImmutableList.of(new VariableReferenceExpression("x", BIGINT), new ConstantExpression(0L, BIGINT)))))));
blocks[i] = createChannel(POSITIONS, ARRAY_SIZE, arrayType);
}
ImmutableList<RowExpression> projections = projectionsBuilder.build();
pageProcessor = compiler.compilePageProcessor(Optional.empty(), projections).get();
pageBuilder = new PageBuilder(projections.stream().map(RowExpression::getType).collect(Collectors.toList()));
page = new Page(blocks);
}
private static Block createChannel(int positionCount, int arraySize, ArrayType arrayType)
{
BlockBuilder blockBuilder = arrayType.createBlockBuilder(new BlockBuilderStatus(), positionCount);
for (int position = 0; position < positionCount; position++) {
BlockBuilder entryBuilder = blockBuilder.beginBlockEntry();
for (int i = 0; i < arraySize; i++) {
if (arrayType.getElementType().getJavaType() == long.class) {
arrayType.getElementType().writeLong(entryBuilder, ThreadLocalRandom.current().nextLong());
}
else {
throw new UnsupportedOperationException();
}
}
blockBuilder.closeEntry();
}
return blockBuilder.build();
}
public PageProcessor getPageProcessor()
{
return pageProcessor;
}
public Page getPage()
{
return page;
}
public PageBuilder getPageBuilder()
{
return pageBuilder;
}
}
public static void main(String[] args)
throws Throwable
{
// assure the benchmarks are valid before running
BenchmarkData data = new BenchmarkData();
data.setup();
new BenchmarkArrayTransform().benchmark(data);
Options options = new OptionsBuilder()
.verbosity(VerboseMode.NORMAL)
.include(".*" + BenchmarkArrayTransform.class.getSimpleName() + ".*")
.build();
new Runner(options).run();
}
}