/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2011, Benedikt Huber (benedikt@vmars.tuwien.ac.at)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package wcet.devel;
import com.jopdesign.sys.Config;
import com.jopdesign.sys.Const;
import com.jopdesign.sys.Native;
import com.jopdesign.sys.Memory;
/**
* Purpose: Analyze {@link Memory#enter(Runnable)}
* Requires that in {@link com.jopdesign.sys.GC#USE_SCOPES} is set to {@code true}.
* @author Benedikt Huber (benedikt@vmars.tuwien.ac.at)
*
*/
public class Scopes {
/* Debugging signals to manipulate the cache */
final static int CACHE_FLUSH = -51;
final static int CACHE_DUMP = -53;
final static boolean MEASURE_CACHE = false;
static class Empty implements Runnable {
@Override
public void run() {
}
}
static class Alloc implements Runnable {
int x[];
@Override
public void run() {
x = new int[1023];
}
}
static class BigMethod implements Runnable {
@Override
public void run() {
int val = 23;
val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123;
val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123;
val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123;
val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123;
val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123; val += 123;
}
}
static int ts, te, to, tos;
Memory scope;
Empty empty;
Alloc alloc;
BigMethod bigMethod;
public Scopes() {
// scope overhead
scope = new Memory(5000);
empty = new Empty();
bigMethod = new BigMethod();
alloc = new Alloc();
}
public void measure() {
scopeEmpty();
if(Config.MEASURE) {
System.out.print("Cost for executing empty scope (excluding to): ");
System.out.println(te-ts-to);
}
scopeAlloc();
if(Config.MEASURE) {
System.out.print("Cost for executing scope allocating 1024 words (excluding to): ");
System.out.println(te-ts-to);
}
scopeFull();
if(Config.MEASURE) {
System.out.print("Cost for executing scope with one large method (excluding to): ");
System.out.println(te-ts-to);
}
}
public static void main(String[] args) {
if(Config.MEASURE) {
ts = Native.rdMem(Const.IO_CNT);
te = Native.rdMem(Const.IO_CNT);
to = te-ts;
}
Scopes s = new Scopes();
s.measure();
}
public void scopeEmpty() {
if(Config.MEASURE) ts = Native.rdMem(Const.IO_CNT);
scope.enter(empty);
if(Config.MEASURE) te = Native.rdMem(Const.IO_CNT);
}
public void scopeAlloc() {
if(Config.MEASURE) ts = Native.rdMem(Const.IO_CNT);
scope.enter(alloc);
if(Config.MEASURE) te = Native.rdMem(Const.IO_CNT);
}
public void scopeFull() {
if(Config.MEASURE) ts = Native.rdMem(Const.IO_CNT);
scope.enter(bigMethod);
if(Config.MEASURE) te = Native.rdMem(Const.IO_CNT);
}
}