What type of inputstream does SnappyFramedInputStream work with better?

[darouwan]

I need to decompress some large files generated by snappyframedoutputstream, which is always over 2GB size. Currently on some small testing files FileInputStream wrapped with SnappyFramedInputStream works fine for me, but I am not sure if it still has the similar performance with over 2GB files since I have no such large file on my computer for testing.

So I am wondering if I need to wrap the FileInputStream with BufferedInputStream or using FileInputStream directly for large file ?

[bokken]

SnappyFramedInputStream is actually based on a ReadableByteChannel. A FileInputStream is converted to a FileChannel, which should be quite efficient. A BufferedInputStream would be wrapped with a ReadableByteChannel, which would effectively be buffering the data twice.

My suggestion would be to start with either a FileInputStream or a FileChannel. Only revisit if you are experiencing specific issues.