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The system uses the index only on a no-hit. Never touches the data at all.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of RPGLIST
Sent: Wednesday, January 23, 2013 10:23 AM
To: midrange-l@xxxxxxxxxxxx
Subject: I/O count differences

I need an explanation on this if someone would be so kind.

When I chain to a file with a key and get a hit, I fully expect the I/O count to increase by 1, even though it is sort of doing a SETLL and then a READE within the chain process. However, whenever it doesn't find a record it shows no I/O count.

I understand that since it didn't find a record it brough nothing back from the disk and therefore didn't increase the I/O count, but it certainly used resources to spin all the way through that drive disk....Is there anywhere that the system accoutns for this in the statistics?

I see the same results when performing a SETLL, If %Equal, actually even if there is a hit I don't see an I/O count until the READE statement.



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