/*
This file is part of JOP, the Java Optimized Processor
see <http://www.jopdesign.com/>
Copyright (C) 2001-2008, Martin Schoeberl (martin@jopdesign.com)
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 testrt;
import joprt.RtThread;
import util.*;
import com.jopdesign.sys.Const;
import com.jopdesign.sys.Native;
public class Utilization {
final static int MIN_US = 10;
final static int PERIOD = 100000;
public static void main(String[] args) {
RtThread rt = new RtThread(10, PERIOD) {
public void run() {
int busy = PERIOD*9/10;
for (;;) {
int t = Native.rd(Const.IO_US_CNT)+busy;
while (t-Native.rd(Const.IO_US_CNT)>0) {
;
}
waitForNextPeriod();
}
}
};
RtThread.startMission();
int t1, t2, t3;
int idle, timeout;
idle = 0;
t1 = Native.rd(Const.IO_US_CNT);
timeout = t1;
for (;;) {
t2 = Native.rd(Const.IO_US_CNT);
t3 = t2-t1;
t1 = t2;
if (t3<MIN_US) {
idle += t3;
}
if (t2-timeout>1000000) {
Timer.wd();
t2 -= timeout;
System.out.print(t2);
System.out.print(" ");
System.out.print(idle);
System.out.print(" ");
idle *= 100;
idle /= t2;
idle = 100-idle;
System.out.print("CPU utilization [%]: ");
System.out.print(idle);
System.out.println();
idle = 0;
t1 = Native.rd(Const.IO_US_CNT);
timeout = t1;
}
}
}
}