169N/A/*
2362N/A * Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A *
0N/A */
0N/A
0N/Apackage bench.serial;
0N/A
0N/Aimport bench.Benchmark;
0N/Aimport java.io.ObjectInputStream;
0N/Aimport java.io.ObjectOutputStream;
0N/A
0N/A/**
0N/A * Benchmark for testing speed of long reads/writes.
0N/A */
0N/Apublic class Longs implements Benchmark {
169N/A
0N/A /**
0N/A * Write and read long values to/from a stream. The benchmark is run in
0N/A * batches: each "batch" consists of a fixed number of read/write cycles,
0N/A * and the stream is flushed (and underlying stream buffer cleared) in
0N/A * between each batch.
0N/A * Arguments: <# batches> <# cycles per batch>
0N/A */
0N/A public long run(String[] args) throws Exception {
169N/A int nbatches = Integer.parseInt(args[0]);
169N/A int ncycles = Integer.parseInt(args[1]);
169N/A StreamBuffer sbuf = new StreamBuffer();
169N/A ObjectOutputStream oout =
169N/A new ObjectOutputStream(sbuf.getOutputStream());
169N/A ObjectInputStream oin =
169N/A new ObjectInputStream(sbuf.getInputStream());
0N/A
169N/A doReps(oout, oin, sbuf, 1, ncycles); // warmup
169N/A
169N/A long start = System.currentTimeMillis();
169N/A doReps(oout, oin, sbuf, nbatches, ncycles);
0N/A return System.currentTimeMillis() - start;
0N/A }
169N/A
0N/A /**
0N/A * Run benchmark for given number of batches, with given number of cycles
0N/A * for each batch.
0N/A */
0N/A void doReps(ObjectOutputStream oout, ObjectInputStream oin,
169N/A StreamBuffer sbuf, int nbatches, int ncycles)
169N/A throws Exception
0N/A {
169N/A for (int i = 0; i < nbatches; i++) {
169N/A sbuf.reset();
169N/A for (int j = 0; j < ncycles; j++) {
169N/A oout.writeLong(0);
169N/A }
169N/A oout.flush();
169N/A for (int j = 0; j < ncycles; j++) {
169N/A oin.readLong();
169N/A }
169N/A }
0N/A }
0N/A}