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Hello
I was testing a simple test program written in PB35 when a friend arrived.
My friend told me he'll write the same program in JAVA to see the difference
in speed of execution.
Few days later the result is so great.My programs are 2.2 time slower than his.
But why?
His Java program takes 1.6 second on his computer.
My program written for PB35 takes 6 seconds on his computer
My program written for PBCC takes 3.5 seconds on his computer.
When I run the three program on my computer the results are similar.
Can any one help because I can NOT figure out what slows my program down.
I suspect I did NOT declare the PUBLIC, PRIVATE correctly and also the DYNAMIC
and STATIC arrrays.
====== The following is the JAVA PROGRAM =====
/** Purpose: This program iterates through 5 nested loops and ultimately
tells us how quick java (jdk1.2.2) is compared to PB35.
* @author Nicholas Mitchell
* @version 1
* @date 5 January 2001
*/
import java.awt.*;
import java.util.*;
public class Counter extends Frame{
private int sum, counter1, counter2, counter3, counter4, counter5;
private int num = 80;
private int [][] myArray = new int[80][5];
private int count;
public Counter(){
sum = 0;
for (counter1 = 1; counter1 <= num - 4; counter1++){
count++;
for (counter2 = counter1 + 1; counter2 <= num - 3; counter2++){
for (counter3 = counter2 + 1; counter3 <= num - 2; counter3++){
for (counter4 = counter3 + 1; counter4 <= num - 1; counter4++){
for (counter5 = counter4 + 1; counter5 <= num; counter5++){
sum += 1;
myArray[0][0] = counter1;
myArray[0][1] = counter2;
myArray[0][2] = counter3;
myArray[0][3] = counter4;
myArray[0][4] = counter5;
} // end loop 5
} // end loop 4
} // end loop 3
} // end loop 2
System.out.println( sum );
} // end loop 1
}
public static void main ( String [] args){
Date t1 = new Date();
Frame frm = new Counter();
Date t2 = new Date();
System.out.println( "Start: " + t1);
System.out.println( "Finish: " + t2);
}
}
==========The following is the program ready for PB35 compiling ======
' Purpose: This program iterates through 5 nested loops and ultimatly
' tell us how quick this program runs when compiled in PB35
' author: Guy North
' Date: 18 December 2000
CLS
DEFINT C, D, N, M
DEFLNG S
S&=0
Time1 = TIMER
Num = 80
DIM MyArray(Num,5)
FOR Counter1 = 1 TO Num -4
FOR Counter2 = Counter1 + 1 TO Num -3
FOR Counter3 = Counter2 + 1 TO Num -2
FOR Counter4 = Counter3 + 1 TO Num -1
FOR Counter5 = Counter4 + 1 TO Num
S& = S& + 1
MyArray(1,1) = Counter1
MyArray(1,2) = Counter2
MyArray(1,3) = Counter3
MyArray(1,4) = Counter4
MyArray(1,5) = Counter5
NEXT Counter5
NEXT Counter4
NEXT Counter3
NEXT Counter2
PRINT S&;" ";
NEXT Counter1
Time2 = TIMER
PRINT: PRINT " to fill an array 80 by 5 .... ";S&;" times"
PRINT " With this computer it took"
PRINT " ";Time1
PRINT " ";Time2
PRINT " "; ROUND((Time2 -Time1),0);" seconds"
DELAY 10
END
========== The following is the program ready for PBCC compiling
' Purpose: This program iterates through 5 nested loops and ultimatly
' tell us how quick this program runs when compiled in PBCC
' author: Guy North
' Date: 8 January 2001
' Compiled with Consol compiler PBCC version 2.00
DEFINT C, D, N, M
DEFLNG S, T
FUNCTION PBMAIN() AS LONG
CLS
S&=0
Time1 = TIMER
Num = 80
DIM MyArray(Num,5)
FOR Counter1 = 1 TO Num -4
FOR Counter2 = Counter1 + 1 TO Num -3
FOR Counter3 = Counter2 + 1 TO Num -2
FOR Counter4 = Counter3 + 1 TO Num -1
FOR Counter5 = Counter4 + 1 TO Num
S& = S& + 1
MyArray(1,1) = Counter1
MyArray(1,2) = Counter2
MyArray(1,3) = Counter3
MyArray(1,4) = Counter4
MyArray(1,5) = Counter5
NEXT Counter5
NEXT Counter4
NEXT Counter3
NEXT Counter2: PRINT S&;" ";
NEXT Counter1
Time2 = TIMER
PRINT: PRINT " to fill an array 80 by 5 .... ";S&;" times"
PRINT " With this computer it took"
PRINT " ";Time1
PRINT " ";Time2
PRINT " "; ROUND((Time2 -Time1),0);" seconds"
WAITKEY$
END FUNCTION
=============END ===========
------------------
I was testing a simple test program written in PB35 when a friend arrived.
My friend told me he'll write the same program in JAVA to see the difference
in speed of execution.
Few days later the result is so great.My programs are 2.2 time slower than his.
But why?
His Java program takes 1.6 second on his computer.
My program written for PB35 takes 6 seconds on his computer
My program written for PBCC takes 3.5 seconds on his computer.
When I run the three program on my computer the results are similar.
Can any one help because I can NOT figure out what slows my program down.
I suspect I did NOT declare the PUBLIC, PRIVATE correctly and also the DYNAMIC
and STATIC arrrays.
====== The following is the JAVA PROGRAM =====
/** Purpose: This program iterates through 5 nested loops and ultimately
tells us how quick java (jdk1.2.2) is compared to PB35.
* @author Nicholas Mitchell
* @version 1
* @date 5 January 2001
*/
import java.awt.*;
import java.util.*;
public class Counter extends Frame{
private int sum, counter1, counter2, counter3, counter4, counter5;
private int num = 80;
private int [][] myArray = new int[80][5];
private int count;
public Counter(){
sum = 0;
for (counter1 = 1; counter1 <= num - 4; counter1++){
count++;
for (counter2 = counter1 + 1; counter2 <= num - 3; counter2++){
for (counter3 = counter2 + 1; counter3 <= num - 2; counter3++){
for (counter4 = counter3 + 1; counter4 <= num - 1; counter4++){
for (counter5 = counter4 + 1; counter5 <= num; counter5++){
sum += 1;
myArray[0][0] = counter1;
myArray[0][1] = counter2;
myArray[0][2] = counter3;
myArray[0][3] = counter4;
myArray[0][4] = counter5;
} // end loop 5
} // end loop 4
} // end loop 3
} // end loop 2
System.out.println( sum );
} // end loop 1
}
public static void main ( String [] args){
Date t1 = new Date();
Frame frm = new Counter();
Date t2 = new Date();
System.out.println( "Start: " + t1);
System.out.println( "Finish: " + t2);
}
}
==========The following is the program ready for PB35 compiling ======
' Purpose: This program iterates through 5 nested loops and ultimatly
' tell us how quick this program runs when compiled in PB35
' author: Guy North
' Date: 18 December 2000
CLS
DEFINT C, D, N, M
DEFLNG S
S&=0
Time1 = TIMER
Num = 80
DIM MyArray(Num,5)
FOR Counter1 = 1 TO Num -4
FOR Counter2 = Counter1 + 1 TO Num -3
FOR Counter3 = Counter2 + 1 TO Num -2
FOR Counter4 = Counter3 + 1 TO Num -1
FOR Counter5 = Counter4 + 1 TO Num
S& = S& + 1
MyArray(1,1) = Counter1
MyArray(1,2) = Counter2
MyArray(1,3) = Counter3
MyArray(1,4) = Counter4
MyArray(1,5) = Counter5
NEXT Counter5
NEXT Counter4
NEXT Counter3
NEXT Counter2
PRINT S&;" ";
NEXT Counter1
Time2 = TIMER
PRINT: PRINT " to fill an array 80 by 5 .... ";S&;" times"
PRINT " With this computer it took"
PRINT " ";Time1
PRINT " ";Time2
PRINT " "; ROUND((Time2 -Time1),0);" seconds"
DELAY 10
END
========== The following is the program ready for PBCC compiling
' Purpose: This program iterates through 5 nested loops and ultimatly
' tell us how quick this program runs when compiled in PBCC
' author: Guy North
' Date: 8 January 2001
' Compiled with Consol compiler PBCC version 2.00
DEFINT C, D, N, M
DEFLNG S, T
FUNCTION PBMAIN() AS LONG
CLS
S&=0
Time1 = TIMER
Num = 80
DIM MyArray(Num,5)
FOR Counter1 = 1 TO Num -4
FOR Counter2 = Counter1 + 1 TO Num -3
FOR Counter3 = Counter2 + 1 TO Num -2
FOR Counter4 = Counter3 + 1 TO Num -1
FOR Counter5 = Counter4 + 1 TO Num
S& = S& + 1
MyArray(1,1) = Counter1
MyArray(1,2) = Counter2
MyArray(1,3) = Counter3
MyArray(1,4) = Counter4
MyArray(1,5) = Counter5
NEXT Counter5
NEXT Counter4
NEXT Counter3
NEXT Counter2: PRINT S&;" ";
NEXT Counter1
Time2 = TIMER
PRINT: PRINT " to fill an array 80 by 5 .... ";S&;" times"
PRINT " With this computer it took"
PRINT " ";Time1
PRINT " ";Time2
PRINT " "; ROUND((Time2 -Time1),0);" seconds"
WAITKEY$
END FUNCTION
=============END ===========
------------------
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