Java-Gaming.org    
Featured games (79)
games approved by the League of Dukes
Games in Showcase (477)
Games in Android Showcase (107)
games submitted by our members
Games in WIP (536)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Interesting performance tip...  (Read 1324 times)
0 Members and 1 Guest are viewing this topic.
Offline crystalsquid

Junior Member




... Boing ...


« Posted 2003-12-04 14:20:26 »

This code takes about 8 seconds (Java 1.4):

 
1  
2  
3  
4  
5  
  canvas = new Canvas();
  canvas.setBackground(new Color(0, 0, 0));
  canvas.setBounds(0, 0, 640, 480);
  applet.add("Center", canvas);  // <- BIG STALL HERE
 


This code takes <1 sec:

 
1  
2  
3  
4  
5  
  canvas = new Canvas();
  applet.add("Center", canvas);  // <- No stall here
 canvas.setBackground(new Color(0, 0, 0));
  canvas.setBounds(0, 0, 640, 480);
  


Bizarre...
Moral of the story: Add the canvas straight after you build it.

- Dom

modified - I forgot to change the 2nd code snippet - Oops!  Embarrassed
Offline blahblahblahh

JGO Coder


Medals: 1


http://t-machine.org


« Reply #1 - Posted 2003-12-04 14:43:21 »

Quote
This code takes about 8 seconds (Java 1.4):

 
1  
2  
3  
4  
5  
  canvas = new Canvas();
  canvas.setBackground(new Color(0, 0, 0));
  canvas.setBounds(0, 0, 640, 480);
  applet.add("Center", canvas);  // <- BIG STALL HERE
 


This code takes <1 sec:

 
1  
2  
3  
4  
5  
  canvas = new Canvas();  // <- No stall here
 canvas.setBackground(new Color(0, 0, 0));
  canvas.setBounds(0, 0, 640, 480);
  applet.add("Center", canvas);
 


Bizarre...


Yeah; what's the difference, exactly?

Anyway, I have an outstanding bug on loading and starting of applets in 1.4.x where sometimes applets can crash on startup - and never get to display anything - under linux. I narrowed it down to a race condition somewhere in Sun's code. It's been accepted but not yet fixed. Who knows how much more screwed code there is in applet startup ? Smiley

malloc will be first against the wall when the revolution comes...
Offline Jeff

JGO Coder




Got any cats?


« Reply #2 - Posted 2003-12-11 06:34:07 »

Quote


Yeah; what's the difference, exactly?


Hmm I dunno but you AIR take your  life  into your hands modifying live AWt components as it is not thread-safe...

Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

 

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

CogWheelz (13 views)
2014-07-30 21:08:39

Riven (21 views)
2014-07-29 18:09:19

Riven (14 views)
2014-07-29 18:08:52

Dwinin (12 views)
2014-07-29 10:59:34

E.R. Fleming (32 views)
2014-07-29 03:07:13

E.R. Fleming (12 views)
2014-07-29 03:06:25

pw (42 views)
2014-07-24 01:59:36

Riven (42 views)
2014-07-23 21:16:32

Riven (29 views)
2014-07-23 21:07:15

Riven (30 views)
2014-07-23 20:56:16
HotSpot Options
by dleskov
2014-07-08 03:59:08

Java and Game Development Tutorials
by SwordsMiner
2014-06-14 00:58:24

Java and Game Development Tutorials
by SwordsMiner
2014-06-14 00:47:22

How do I start Java Game Development?
by ra4king
2014-05-17 11:13:37

HotSpot Options
by Roquen
2014-05-15 09:59:54

HotSpot Options
by Roquen
2014-05-06 15:03:10

Escape Analysis
by Roquen
2014-04-29 22:16:43

Experimental Toys
by Roquen
2014-04-28 13:24:22
java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!