/* 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); } }