J2ME, continusly load image, low speed....

[Boki]

Hi All,
It seems that speed will become slower and slower after a while.

Could you please advice?
The image A / B are both 5KB size jpg file.

Best regards,
Boki.

====================
public void run()
{

int hhhhh=0;
lastSendTime=System.currentTimeMillis() ;
//////////////////////////////
while(got_ate0<100)
{


if (System.currentTimeMillis() - lastSendTime > 120)
{
lastSendTime=System.currentTimeMillis() ;


hhhhh=1-hhhhh;

try {
if (hhhhh==0)
GUI.aaimage = Image.createImage("/2.jpg");
else
GUI.aaimage = Image.createImage("/1.jpg");

}
catch (Exception e)
{
}
got_ate0++;
gui.repaint();

}
}

 

[Andrew Thompson]

Could you please advice?

My advice is 'post compilable code'.

The image A / B are both 5KB size jpg file.

Have you ruled out 'image caching'?
Check the freeMemory/totalMemory* each iteration.

* Yes, yes. Listed in the JavaDocs.

 

[David N. Welton]

I don't know how to check

" freeMemory/totalMemory* each iteration"

Google turns this up as the third hit:

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Runtime.html

--
David N. Welton
- http://www.dedasys.com/davidw/

Linux, Open Source Consulting
- http://www.dedasys.com/

 

[Boki]

I don't know how to check

" freeMemory/totalMemory* each iteration"

..... I am using Sony Ericsson WTK toolbar / Netbeans 4.1/5.0

Why I do this is to simulate when I got a lot of jpg file ( from
Bluetooth ), can I decode/render in screen on time....


Best regards,
Boki.

 

[Boki]

Thanks, I think the root cause is - create , create , create.... , right?

I don't know which command can replace the data directly without create a
new memory space?

 

[Roedy Green]

It seems that speed will become slower and slower after a while.

Could you please advice?

That is often a packratting problem.

See http://mindprod.com/jgloss/packratting.html

 

[Darryl L. Pierce]

Thanks, I think the root cause is - create , create , create.... , right?

I don't know which command can replace the data directly without create a
new memory space?

Images are immutable, so you have to create a new instance for each new
Image used.