Mirror of the BLOAT repository
https://www.cs.purdue.edu/homes/hosking/bloat/
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143 lines
4.2 KiB
143 lines
4.2 KiB
/**
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* All files in the distribution of BLOAT (Bytecode Level Optimization and
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* Analysis tool for Java(tm)) are Copyright 1997-2001 by the Purdue
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* Research Foundation of Purdue University. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package EDU.purdue.cs.bloat.benchmark;
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/**
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* This class is used to run a benchmark Java program with Perfmon running in
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* the background. Perfmon is a software package developed at Michigan State
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* University that allows user-level programs to access the hardware counters on
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* Sparc processors.
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*
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* <p>
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*
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* The <tt>main</tt> method of this class takes several arguments (note that
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* the first four arguments are mutually exclusive):
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*
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* <pre>
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* -inst-load-stall Count load interlock induced stalls
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* -dcache Count data cache hit rate
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* -cycle-ic-miss-stall Count I-cache miss induced stalls (and cycles)
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* -inst-cycle Count instructions (and cycles)
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*
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* -run n How many times is the program run
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*
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* class Java class to run (the benchmark)
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* args Arguments to benchmark class
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* </pre>
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*
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* The real work is done by the native <tt>run</tt> method that is implemented
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* in benchmark.c.
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*
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* @see BenchmarkSecurityManager
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*/
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public class Benchmark {
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static {
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// Load native code from libbenchmark.so
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System.loadLibrary("benchmark");
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}
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public static native void init(Class main);
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public static native void run(Class main, String[] args);
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public static native void setMode(int mode);
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public static void main(final String[] args) throws Exception {
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int mode = 0;
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int runs = 1;
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int eat = 0;
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if (args.length <= 1) {
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Benchmark.usage();
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}
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for (eat = 0; eat < args.length; eat++) {
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if (args[eat].equals("-inst-cycle")) {
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mode = 3;
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} else if (args[eat].equals("-inst-load-stall")) {
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mode = 0;
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} else if (args[eat].equals("-dcache")) {
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mode = 1;
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} else if (args[eat].equals("-cycle-ic-miss-stall")) {
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mode = 2;
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} else if (args[eat].equals("-run")) {
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if (++eat >= args.length) {
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Benchmark.usage();
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}
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runs = Integer.parseInt(args[eat]);
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if (runs <= 0) {
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Benchmark.usage();
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}
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} else {
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// The main class
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eat++;
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break;
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}
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}
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/* Got all the args. */
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if (eat > args.length) {
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Benchmark.usage();
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}
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final BenchmarkSecurityManager sec = new BenchmarkSecurityManager();
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System.setSecurityManager(sec);
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final String mainClassName = args[eat - 1];
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final String[] a = new String[args.length - eat];
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System.err.println("Running " + mainClassName + " in mode " + mode);
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Benchmark.setMode(mode);
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final Class mainClass = Class.forName(mainClassName);
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Benchmark.init(mainClass);
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for (int i = 0; i < runs; i++) {
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try {
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System.arraycopy(args, eat, a, 0, a.length);
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Benchmark.run(mainClass, a);
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} catch (final SecurityException e) {
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continue;
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} catch (final Exception e) {
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e.printStackTrace(System.err);
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sec.allowExit = true;
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System.exit(1);
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}
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}
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sec.allowExit = true;
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}
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private static void usage() {
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System.err.print("usage: java EDU.purdue.cs.bloat.Benchmark ");
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System.err.println("options class args...");
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System.err.println("where options are one of:");
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System.err.println(" -inst-load-stall");
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System.err.println(" -inst-cycle");
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System.err.println(" -cycle-ic-miss-stall");
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System.err.println(" -dcache");
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System.err.println(" -run n");
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System.exit(1);
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}
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}
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