Can we use Object Pooling concept instead of declaring large size byte array?

Question

I have a question that Can we use Object pooling concept instead of declaring large size byte array as 20MB. If yes then How? Actually I have a statement as byte[] fileData = new byte[2097152]; because I have to read that much data from a video file which returns OutOfMemory Exception frequently in the app after we are trying to hit the same java file 20 to 24 times continuously. Means this is not the error, in this case heap memory gets full and GC is unable to clear the same in the given time span that's why it returns OutOfMemory Exception. So, Can we use here ObjectPooling concept of JAVA for higher memory utilization.

Thanks in advance.

Answer 1

You are trying to solve the wrong problem... you should focus on not loading the entire 2MB file into RAM, because you really don't need to do that.

Create a small window in RAM, 64KB say, and load the file piece by piece. That's what video players etc do.

(That said, 2MB isn't that much. If it's easier, just make sure you only allocate it once and reuse that allocation thereafter.)