What can explain such a big difference? Can System.nanoTime() work with different resolutions between Windows 7 & OS X, or is painting really that slow in OS X? In Windows machines, average execution time was only about 100 us, that is about 30 x faster! I also run same code in couple for Windows 7 PCs (Sony Vaio laptop, AMD dual core 2.x GHz and HP laptop, Intel quad core, 2.x GHz, don't remember all details now). To get some kind of idea of how fast/slow the painting is, I added some measurement code, to record starting and end times of paintComponent() method, and calculate the average duration, using System.nanoTime() method.Īverage execution time per single paintComponent() seems to be about 3000 usec on OS X 10.6. I call the paintComponent() method 50 times/sec from a timer callback. In my paint method, I draw about 30-50 rectangles with Swing drawRect() method, sizes of 32 * 32 pixels, few are of 7 * 7 pixels of size, the smaller ones are filled with fillRect. I am using Java 1.6.0_65 with Mac OS X 10.6.8, Macbook Pro 2.4 GHz Intel Core 2 Duo (Spring 2010 model), the display card is NVIDIA GeForce 320M. I started to develop a simple 2D shooter game with Java swing as a hobby project. This is my first post to this forum, I have about 6 months of experience of Java in general, and about 1 month of Java GUI programming (Swing), so consider me as a Java newbie.

Paint apps for mac os 10.6