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> From: Robert Upshall > > The application does allot of things, basically I will load a JList from a > customer DB2 file on the as400, then based on who was select do a > key lookup > with KeyedFile, maybe to 1 or more files depending on the situation. I'm betting that the actual KeyedFile read doesn't take nearly as much time as the open of the file. Using RLA, you're going to find a lot of overhead associated with opening a file. If you start your application by opening all your files, then you'll find your access is considerably faster. RPG is highly optimized to allow fast opening of files; these optimizations aren't available for Java code. As to reading a large block of data (many records) your overhead there will be in communications and EBCDIC-ASCII conversion. I think you'll find RLA performance closer to that of a program call in that case. Finally, I'd suggest getting the latest version of JTOpen. Each release tries to enhance performance a little bit. Joe
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