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Index › Programming Questions & Help › Programs › Dumping memory

sd Junior Member Offline Posts: 68	Dumping memory Aug 31st, 2006, 2:08pm   Hi, I'm using a program which loads a lot of images. Is there any way to dump the image from memory once we're done using it? Thanks
	Nothing is Impossible

JohnG Ex Member	Re: Dumping memory Reply #1 - Aug 31st, 2006, 3:10pm   If you remove all references to the image, e.g. set the PImage variable to null, then eventually Java's garbage collector will free the memory.

st33d God Member Offline Posts: 666	Re: Dumping memory Reply #2 - Aug 31st, 2006, 10:35pm   Is there a way (other than some guessing by looking at Task Manager on Windows) to println() the current memory usage and free memory?

cello Full Member Offline Posts: 143	Re: Dumping memory Reply #3 - Sep 1st, 2006, 4:04am   http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Runtime.html#freeMemory() http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Runtime.html#totalMemory()

sd Junior Member Offline Posts: 68	Re: Dumping memory Reply #4 - Sep 1st, 2006, 6:07am   Thanks for coming to my rescue again John
	Nothing is Impossible

st33d God Member Offline Posts: 666	Re: Dumping memory Reply #5 - Sep 1st, 2006, 1:40pm   Thanks. Because it took me at least ten tries to get the right syntax I reproduce it here for the sake of sanity. Code: println(Runtime.getRuntime().freeMemory());

sd Junior Member Offline Posts: 68	Re: Dumping memory Reply #6 - Sep 2nd, 2006, 7:42am   Thanks for posting that code st33d. Very useful!
	Nothing is Impossible

cello Full Member Offline Posts: 143	Re: Dumping memory Reply #7 - Sep 2nd, 2006, 7:11pm   On a side note, you might want to do something like: Code: Runtime rt; void start() { rt = Runtime.getRuntime(); } (Then use rt.freeMemory() and rt.totalMemory() as needed.) It probably won't make a huge difference on today's computers, but it would avoid some redundant steps. Marcello