This article would have been much more informative had we seen the actual program. Usually it doesn&#x27;t much matter how big a file you read from your program assuming you are reading for aggregation purposes. If you are in need of individual records, then that is what databases are for. So i smell a large red herring. Is GC a problem? sure it can be. Usually tho when it is, it&#x27;s more likely to be my problem, not the JVMs.