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8061281: Microbenchmark suite build support, directory layout and sample benchmarks

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8061282: Migrate jmh-jdk-microbenchmarks into the JDK

Co-authored-by: Magnus Ihse Bursie <magnus.ihse.bursie@oracle.com>
Co-authored-by: Erik Joelsson <erik.joelsson@oracle.com>
Co-authored-by: Staffan Friberg <sfriberg@kth.se>
Reviewed-by: ecaspole, mchung, erikj, ihse
This commit is contained in:
Claes Redestad 2018-11-16 23:39:51 +01:00
parent 14b7467279
commit 7a30c97753
247 changed files with 26097 additions and 13 deletions
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107
test/micro/org/openjdk/bench/java/net/SocketReadWrite.java Normal file
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/*
* Copyright (c) 2014 Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.openjdk.bench.java.net;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.Mode;
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.TearDown;
/**
* Tests the overheads of I/O API.
* This test is known to depend heavily on network conditions and paltform.
*/
@BenchmarkMode(Mode.Throughput)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@State(Scope.Thread)
public class SocketReadWrite {
private OutputStream os;
private InputStream is;
private ServerSocket ss;
private Socket s1, s2;
private ReadThread rt;
@Setup
public void beforeRun() throws IOException {
InetAddress iaddr = InetAddress.getLocalHost();
ss = new ServerSocket(0);
s1 = new Socket(iaddr, ss.getLocalPort());
s2 = ss.accept();
os = s1.getOutputStream();
is = s2.getInputStream();
rt = new ReadThread(is);
rt.start();
}
@TearDown
public void afterRun() throws IOException, InterruptedException {
os.write(0);
os.close();
is.close();
s1.close();
s2.close();
ss.close();
rt.join();
}
@Benchmark
public void test() throws IOException {
os.write((byte) 4711);
}
static class ReadThread extends Thread {
private InputStream is;
public ReadThread(InputStream is) {
this.is = is;
}
public void run() {
try {
while (is.read() > 0);
} catch (SocketException ex) {
// ignore - most likely "socket closed", which means shutdown
} catch (IOException e) {
e.printStackTrace();
}
}
}
}