BenchmarkMapSubscript.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.block.Block;
import com.facebook.presto.common.block.BlockBuilder;
import com.facebook.presto.common.block.DictionaryBlock;
import com.facebook.presto.common.type.MapType;
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.RowExpression;
import com.facebook.presto.sql.gen.ExpressionCompiler;
import com.facebook.presto.sql.gen.PageFunctionCompiler;
import com.google.common.collect.ImmutableList;
import io.airlift.slice.Slice;
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.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import static com.facebook.presto.block.BlockAssertions.createSlicesBlock;
import static com.facebook.presto.common.function.OperatorType.SUBSCRIPT;
import static com.facebook.presto.common.type.DoubleType.DOUBLE;
import static com.facebook.presto.common.type.VarcharType.createUnboundedVarcharType;
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.sql.relational.Expressions.constant;
import static com.facebook.presto.sql.relational.Expressions.field;
import static com.facebook.presto.testing.TestingConnectorSession.SESSION;
import static com.facebook.presto.util.StructuralTestUtil.mapType;
import static com.google.common.base.Verify.verify;
import static io.airlift.slice.Slices.utf8Slice;
@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 BenchmarkMapSubscript
{
private static final int POSITIONS = 1024;
@Benchmark
@OperationsPerInvocation(POSITIONS)
public List<Optional<Page>> mapSubscript(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
{
@Param({"fix-width", "var-width", "dictionary"})
private String name = "dictionary";
@Param({"1", "13"})
private int mapSize = 13;
private Page page;
private PageProcessor pageProcessor;
@Setup
public void setup()
{
MetadataManager metadata = createTestMetadataManager();
ExpressionCompiler compiler = new ExpressionCompiler(metadata, new PageFunctionCompiler(metadata, 0));
List<String> keys;
switch (mapSize) {
case 1:
keys = ImmutableList.of("do_not_use");
break;
case 13:
keys = ImmutableList.of("is_inverted", "device_model", "country", "carrier_id", "network_type", "os_version",
"device_brand", "device_type", "interface", "device_os", "app_version", "device_type_class", "browser");
break;
default:
throw new UnsupportedOperationException();
}
verify(keys.size() == mapSize);
MapType mapType;
Block valueBlock;
switch (name) {
case "fix-width":
mapType = mapType(createUnboundedVarcharType(), DOUBLE);
valueBlock = createFixWidthValueBlock(POSITIONS, mapSize);
break;
case "var-width":
mapType = mapType(createUnboundedVarcharType(), createUnboundedVarcharType());
valueBlock = createVarWidthValueBlock(POSITIONS, mapSize);
break;
case "dictionary":
mapType = mapType(createUnboundedVarcharType(), createUnboundedVarcharType());
valueBlock = createDictionaryValueBlock(POSITIONS, mapSize);
break;
default:
throw new UnsupportedOperationException();
}
Block keyBlock = createKeyBlock(POSITIONS, keys);
Block block = createMapBlock(mapType, POSITIONS, keyBlock, valueBlock);
ImmutableList.Builder<RowExpression> projectionsBuilder = ImmutableList.builder();
FunctionHandle functionHandle = metadata.getFunctionAndTypeManager().resolveOperator(SUBSCRIPT, fromTypes(mapType, mapType.getKeyType()));
for (int i = 0; i < mapSize; i++) {
projectionsBuilder.add(new CallExpression(
SUBSCRIPT.name(),
functionHandle,
mapType.getValueType(),
ImmutableList.of(field(0, mapType), constant(utf8Slice(keys.get(i)), createUnboundedVarcharType()))));
}
ImmutableList<RowExpression> projections = projectionsBuilder.build();
pageProcessor = compiler.compilePageProcessor(SESSION.getSqlFunctionProperties(), Optional.empty(), projections).get();
page = new Page(block);
}
public PageProcessor getPageProcessor()
{
return pageProcessor;
}
public Page getPage()
{
return page;
}
private static Block createMapBlock(MapType mapType, int positionCount, Block keyBlock, Block valueBlock)
{
int[] offsets = new int[positionCount + 1];
int mapSize = keyBlock.getPositionCount() / positionCount;
for (int i = 0; i < offsets.length; i++) {
offsets[i] = mapSize * i;
}
return mapType.createBlockFromKeyValue(positionCount, Optional.empty(), offsets, keyBlock, valueBlock);
}
private static Block createKeyBlock(int positionCount, List<String> keys)
{
Block keyDictionaryBlock = createSliceArrayBlock(keys);
int[] keyIds = new int[positionCount * keys.size()];
for (int i = 0; i < keyIds.length; i++) {
keyIds[i] = i % keys.size();
}
return new DictionaryBlock(keyDictionaryBlock, keyIds);
}
private static Block createFixWidthValueBlock(int positionCount, int mapSize)
{
BlockBuilder valueBlockBuilder = DOUBLE.createBlockBuilder(null, positionCount * mapSize);
for (int i = 0; i < positionCount * mapSize; i++) {
DOUBLE.writeDouble(valueBlockBuilder, ThreadLocalRandom.current().nextDouble());
}
return valueBlockBuilder.build();
}
private static Block createVarWidthValueBlock(int positionCount, int mapSize)
{
Type valueType = createUnboundedVarcharType();
BlockBuilder valueBlockBuilder = valueType.createBlockBuilder(null, positionCount * mapSize);
for (int i = 0; i < positionCount * mapSize; i++) {
int wordLength = ThreadLocalRandom.current().nextInt(5, 10);
valueType.writeSlice(valueBlockBuilder, utf8Slice(randomString(wordLength)));
}
return valueBlockBuilder.build();
}
private static Block createDictionaryValueBlock(int positionCount, int mapSize)
{
double distinctRatio = 0.82;
int dictionarySize = (int) (positionCount * mapSize * distinctRatio);
List<String> dictionaryStrings = new ArrayList<>(dictionarySize);
for (int i = 0; i < dictionarySize; i++) {
int wordLength = ThreadLocalRandom.current().nextInt(5, 10);
dictionaryStrings.add(randomString(wordLength));
}
Block dictionaryBlock = createSliceArrayBlock(dictionaryStrings);
int[] keyIds = new int[positionCount * mapSize];
for (int i = 0; i < keyIds.length; i++) {
keyIds[i] = ThreadLocalRandom.current().nextInt(0, dictionarySize);
}
return new DictionaryBlock(dictionaryBlock, keyIds);
}
private static String randomString(int length)
{
String symbols = "abcdefghijklmnopqrstuvwxyz";
char[] chars = new char[length];
for (int i = 0; i < length; i++) {
chars[i] = symbols.charAt(ThreadLocalRandom.current().nextInt(symbols.length()));
}
return new String(chars);
}
private static Block createSliceArrayBlock(List<String> keys)
{
// last position is reserved for null
Slice[] sliceArray = new Slice[keys.size() + 1];
for (int i = 0; i < keys.size(); i++) {
sliceArray[i] = utf8Slice(keys.get(i));
}
return createSlicesBlock(sliceArray);
}
}
public static void main(String[] args)
throws Throwable
{
// assure the benchmarks are valid before running
BenchmarkData data = new BenchmarkData();
data.setup();
new BenchmarkMapSubscript().mapSubscript(data);
Options options = new OptionsBuilder()
.verbosity(VerboseMode.NORMAL)
.warmupMode(WarmupMode.INDI)
.include(".*" + BenchmarkMapSubscript.class.getSimpleName() + ".*")
.build();
new Runner(options).run();
}
}