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POJAVA 2D Game Linux terrible FameRate
 

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  1. POJAVA 2D Game Linux terrible FameRate
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    <p>I’m developing a 2D game in java. Our group is normally developing on a Windows and Mac platform. No problems appear during the game and we have a <strong>constant frame rate of 60 fps</strong>. </p> <p>Yesterday we ran our game on a Linux computer and the frame rate was <strong>only about 10 frames</strong> per second! </p> <p><em>Does anybody have heard something like this? Having problems on running Java games on Linux? Holding up a good frame rate on Linux?</em></p> <p>I don´t know which code lines(at the moment more then 12000) I should show you, so you could understand my problem. But I’ll try to explain a little of our concept so maybe you know a solution or you can give us a hint :)</p> <p>We build a Content Manager Service, which loads and holds our images which should be drawn on the JFrame. Typically we are using images in a png format. </p> <p>A very short extract:</p> <pre><code>//Load our images which are later drawn on the Frame URL url = this.getClass().getClassLoader().getResource( the right image Path); this.image = ImageIO.read(url); //extract of draw this.graphicsDevice.getGraphics().drawImage(ourImage, x , y , null); </code></pre> <p>We have about 25 different images at the same time, which are directly drawn on the graphic device of the JFrame. </p> <p>I don´t have any experience with Linux, that’s why I can´t understand the source of the terrible frame rate. (Remember, on windows and mac pcs it´s constant 62 fps, with the same code :( )</p> <p>If anybody needs some more information to help, I would try to add some.</p> <p>Thanks for reading!</p> <p>Best regards FireDragon</p>
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    1. CODo you have an actual JVM on the system? Are you sure that this JVM is used and not some old implementation?
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    2. COHow well is the graphics card for your test machine supported on Linux ? You might be comparing framerate with Windows or Mac that can use hardware acceleration / proper OpenGL drivers ...
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