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BindArray.java
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BindArray.java
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/*
* Copyright (c) 2017, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
package org.postgresql.benchmark.statement;
import org.postgresql.benchmark.profilers.FlightRecorderProfiler;
import org.postgresql.util.ConnectionUtil;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Level;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
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.TearDown;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.profile.GCProfiler;
import org.openjdk.jmh.runner.Runner;
import org.openjdk.jmh.runner.RunnerException;
import org.openjdk.jmh.runner.options.Options;
import org.openjdk.jmh.runner.options.OptionsBuilder;
import java.sql.Array;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
@Fork(value = 1, jvmArgsPrepend = "-Xmx128m")
@Measurement(iterations = 10, time = 1, timeUnit = TimeUnit.SECONDS)
@Warmup(iterations = 10, time = 1, timeUnit = TimeUnit.SECONDS)
@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class BindArray {
private Connection connection;
private PreparedStatement ps;
Integer[] ints;
@Param({"1", "5", "10", "50", "100", "1000"})
int arraySize;
@Setup(Level.Trial)
public void setUp() throws SQLException {
Properties props = ConnectionUtil.getProperties();
connection = DriverManager.getConnection(ConnectionUtil.getURL(), props);
ps = connection.prepareStatement("SELECT ?");
ints = new Integer[arraySize];
for (int i = 0; i < arraySize; i++) {
ints[i] = i + 1;
}
}
@TearDown(Level.Trial)
public void tearDown() throws SQLException {
ps.close();
connection.close();
}
@Benchmark
public Statement setObject() throws SQLException {
Array sqlInts = connection.createArrayOf("int", ints);
ps.setObject(1, sqlInts, Types.ARRAY);
return ps;
}
@Benchmark
public Statement setArray() throws SQLException {
Array sqlInts = connection.createArrayOf("int", ints);
ps.setArray(1, sqlInts);
return ps;
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(BindArray.class.getSimpleName())
.addProfiler(GCProfiler.class)
.addProfiler(FlightRecorderProfiler.class)
.detectJvmArgs()
.build();
new Runner(opt).run();
}
}