Probably, when dealing with IO bound problems it's important to think of IO as a really long pipe extremely fat pipe. Think oil pipeline. The key is keeping th

Probably, when dealing with IO bound problems it's important to think of IO as a really long pipe extremely fat pipe. Think oil pipeline. The key is keeping the pipe full, requesting a piece of data based on what's in the pipe will mean that it's going to be hard to keep the pipe full. You want to request the data long before you're ever going to need it. If your SQL queries are done in such a way that they don't depend on data in the pipe they'll work fast, if they aren't you'll be not much better off than whatever was currently in place.