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Date:
Re: [ecs] looking for some Java expertise (large menu frames taking a
Jim Willeke
Wed, 21 Feb 2007 11:58:37 -0500
Wed, 21 Feb 2007 11:58:37 -0500
I added these lines:
        System.out.println("Display frame");
        System.out.println(System.currentTimeMillis());
        jframe.setVisible(true); // display it (takes FOREVER)
        System.out.println(System.currentTimeMillis());
        System.out.println("Wait 5 seconds");

Create frame
Display frame
1172076724593
1172076726343


Does not seem so long.....

Java jre1.5.0_06
On Windows XP SP2
-jim

Mark Gilmore wrote:
> hi everyone,
> i have recently noticed that *all* JAVA menu frames that contain a lot 
> of elements (over 200 or so)
> can take a REALLY long time to display.
> specifically, it is the Frame.setVisible(true) call that is the culprit.
> the delay is proportional *only* to the number of elements in the frame.
> it happens with both normal Frames and JFrames.
> it happens in both Applets and stand-alone pgms.
>
> this can be seen in 3 places:
>         1) click the value of an Integer Object
>                 FireFox:
>                         The *initial* display can take as long as *30 
> seconds*
>                                 During this time, 
> \WINDOWS\system32\rundll32.exe is pegging the CPU AT 98+%
>                                 What this DLL has to do with a JAVA 
> menu is beyond me (GatesWare).
>                         Thereafter, it takes 2-3 seconds
>                 I.E.:
>                         There is no long delay on 1st display (as with 
> FireFox)
>                         It takes 2-3 seconds every time (acceptable, 
> but see #2).
>
>         2) if you have a lot of objects (i have 390), click the ADD 
> button in an ECS Page:
>                 FireFox: It takes 10+ seconds to display the Object 
> menu every time
>                         (rundll32.exe does not seem to come into play 
> for this one)
>                 IE: same as FireFox
>
>         3) compile/run the JAVA pgm below.
>             This is a minimal pgm that reproduces the problem.
>             It takes 14 seconds to display a frame containing 500 labels.
>
> any theories or suggestions would be greatly appreciated !
> i would also like to know who is (or is not ?) having similar problems.
>
> thanks,
> Mark Gilmore
> http://OmnipotenceSoftware.com
> 423-745-0026
>
>
> ********************************************
> TEST PGM:
> import java.lang.*;
> import java.awt.*;
> import java.awt.Component;
> import java.awt.Label;
> import javax.swing.JFrame;
> public class X
>         {
>         public static void main(String[] arg)
>                 {
>                 X1 x1 = new X1();
>                 x1.main(arg);
>                 }
>         }
> class X1
>         {
>         public void main(String[] arg)
>         {
>         JFrame jframe = new JFrame("MenuLookDemo");
>         jframe.getContentPane().setLayout(new 
> FlowLayout(FlowLayout.CENTER, 2, 2));
>         int x;
>         System.out.println("Create frame");
>         Label lb[] = new Label[500];            // create frame with 
> 500 labels
>         for (x = 0; x < 500; x++)
>                 {
>                 lb[x] = new Label(Integer.toString(x));
>                 jframe.getContentPane().add(lb[x]);
>                 }
>         jframe.setSize(800, 400);
>         System.out.println("Display frame");
>         jframe.setVisible(true);                // display it (takes 
> FOREVER)
>         System.out.println("Wait 5 seconds");
>         try {Thread.sleep(5000);}
>         catch (InterruptedException e0) {};
>         System.exit(0);
>         }
> }
>
> Mark Gilmore
> http://OmnipotenceSoftware.com
>
>

-- 
-jim

Phone: 419.564.7692
Email: jim@willeke.com
IM: jim@willeke.com (on MSN)
IM: jwilleke@gmail.com (on GOOGLE)
IM: jwilleke (on Yahoo)
IM: jeemster (on AIM)
My LinkedIn: http://www.linkedin.com/in/jwilleke



I added these lines:
        System.out.println("Display frame");
        System.out.println(System.currentTimeMillis());
        jframe.setVisible(true); // display it (takes FOREVER)
        System.out.println(System.currentTimeMillis());
        System.out.println("Wait 5 seconds");

Create frame
Display frame
1172076724593
1172076726343


Does not seem so long.....

Java jre1.5.0_06
On Windows XP SP2
-jim

Mark Gilmore wrote:
hi everyone,
i have recently noticed that *all* JAVA menu frames that contain a lot of elements (over 200 or so)
can take a REALLY long time to display.
specifically, it is the Frame.setVisible(true) call that is the culprit.
the delay is proportional *only* to the number of elements in the frame.
it happens with both normal Frames and JFrames.
it happens in both Applets and stand-alone pgms.

this can be seen in 3 places:
        1) click the value of an Integer Object
                FireFox:
                        The *initial* display can take as long as *30 seconds*
                                During this time, \WINDOWS\system32\rundll32.exe is pegging the CPU AT 98+%
                                What this DLL has to do with a JAVA menu is beyond me (GatesWare).
                        Thereafter, it takes 2-3 seconds
                I.E.:
                        There is no long delay on 1st display (as with FireFox)
                        It takes 2-3 seconds every time (acceptable, but see #2).

        2) if you have a lot of objects (i have 390), click the ADD button in an ECS Page:
                FireFox: It takes 10+ seconds to display the Object menu every time
                        (rundll32.exe does not seem to come into play for this one)
                IE: same as FireFox

        3) compile/run the JAVA pgm below.
            This is a minimal pgm that reproduces the problem.
            It takes 14 seconds to display a frame containing 500 labels.

any theories or suggestions would be greatly appreciated !
i would also like to know who is (or is not ?) having similar problems.

thanks,
Mark Gilmore
http://OmnipotenceSoftware.com
423-745-0026


********************************************
TEST PGM:
import java.lang.*;
import java.awt.*;
import java.awt.Component;
import java.awt.Label;
import javax.swing.JFrame;
public class X
        {
        public static void main(String[] arg)
                {
                X1 x1 = new X1();
                x1.main(arg);
                }
        }
class X1
        {
        public void main(String[] arg)
        {
        JFrame jframe = new JFrame("MenuLookDemo");
        jframe.getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER, 2, 2));
        int x;
        System.out.println("Create frame");
        Label lb[] = new Label[500];            // create frame with 500 labels
        for (x = 0; x < 500; x++)
                {
                lb[x] = new Label(Integer.toString(x));
                jframe.getContentPane().add(lb[x]);
                }
        jframe.setSize(800, 400);
        System.out.println("Display frame");
        jframe.setVisible(true);                // display it (takes FOREVER)
        System.out.println("Wait 5 seconds");
        try {Thread.sleep(5000);}
        catch (InterruptedException e0) {};
        System.exit(0);
        }
}

Mark Gilmore
http://OmnipotenceSoftware.com



--
-jim
Phone: 419.564.7692
Email: jim@willeke.com
IM: jim@willeke.com (on MSN)
IM: jwilleke@gmail.com (on GOOGLE)
IM: jwilleke (on Yahoo)
IM: jeemster (on AIM)
My LinkedIn: http://www.linkedin.com/in/jwilleke

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