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<snip> Why need a user space, apperently you are procesing the occurences of the DS. Using the user space in this regard is overkill. </snip> Your alternative. Allocate 16MB of memory? You will note I said "if you are reading in a lot of records". If the average read only gave you a few records, yes user space is an overkill. If a single read is going to give dozens or hundreds of records or you simply don't know what is being returned, the user space makes a lot of sense because you don't have to manage the storage. The operating system takes care of it for you and the performance is superb. The IBM manuals make it clear that whenever possible do a multiple record fetch. The only other thing that I can say is I have seen huge differences in programs where I read the data into a user space. At a previous company I was working at I was taking RPG/ILE stored procedures with call times of over a minutes to sub-second times using this technique and others.
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