--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/rmi/reliability/benchmark/bench/serial/ProxyArrays.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,123 @@
+/*
+ * Copyright 1999 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ *
+ */
+
+package bench.serial;
+
+import bench.Benchmark;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+
+/**
+ * Benchmark for testing speed of proxy array reads/writes.
+ */
+public class ProxyArrays implements Benchmark {
+
+ static class DummyHandler implements InvocationHandler, Serializable {
+ public Object invoke(Object proxy, Method method, Object[] args)
+ throws Throwable
+ {
+ return null;
+ }
+ }
+
+ static interface DummyInterface {
+ public void foo();
+ }
+
+ /**
+ * Write and read proxy arrays to/from a stream. The benchmark is run in
+ * batches, with each batch consisting of a fixed number of read/write
+ * cycles. The ObjectOutputStream is reset after each batch of cycles has
+ * completed.
+ * Arguments: <array size> <# batches> <# cycles per batch>
+ */
+ public long run(String[] args) throws Exception {
+ int size = Integer.parseInt(args[0]);
+ int nbatches = Integer.parseInt(args[1]);
+ int ncycles = Integer.parseInt(args[2]);
+ Proxy[][] arrays = genArrays(size, ncycles);
+ StreamBuffer sbuf = new StreamBuffer();
+ ObjectOutputStream oout =
+ new ObjectOutputStream(sbuf.getOutputStream());
+ ObjectInputStream oin =
+ new ObjectInputStream(sbuf.getInputStream());
+
+ doReps(oout, oin, sbuf, arrays, 1); // warmup
+
+ long start = System.currentTimeMillis();
+ doReps(oout, oin, sbuf, arrays, nbatches);
+ return System.currentTimeMillis() - start;
+ }
+
+ /**
+ * Generate proxy arrays.
+ */
+ Proxy[][] genArrays(int size, int narrays) throws Exception {
+ Class proxyClass =
+ Proxy.getProxyClass(DummyInterface.class.getClassLoader(),
+ new Class[] { DummyInterface.class });
+ Constructor proxyCons =
+ proxyClass.getConstructor(new Class[] { InvocationHandler.class });
+ Object[] consArgs = new Object[] { new DummyHandler() };
+ Proxy[][] arrays = new Proxy[narrays][size];
+ for (int i = 0; i < narrays; i++) {
+ for (int j = 0; j < size; j++) {
+ arrays[i][j] = (Proxy) proxyCons.newInstance(consArgs);
+ }
+ }
+ return arrays;
+ }
+
+ /**
+ * Run benchmark for given number of batches, with given number of cycles
+ * for each batch.
+ */
+ void doReps(ObjectOutputStream oout, ObjectInputStream oin,
+ StreamBuffer sbuf, Proxy[][] arrays, int nbatches)
+ throws Exception
+ {
+ int ncycles = arrays.length;
+ for (int i = 0; i < nbatches; i++) {
+ sbuf.reset();
+ oout.reset();
+ for (int j = 0; j < ncycles; j++) {
+ oout.writeObject(arrays[j]);
+ }
+ oout.flush();
+ for (int j = 0; j < ncycles; j++) {
+ oin.readObject();
+ }
+ }
+ }
+}
+
+