RE: Performance issue: open/read PF vs open/read SRCPF

["Shaw, David" <dshaw@xxxxxxxxxxx>]

Bruce,

Why do you think there would be a difference?  The only difference I've ever
seen is functional - members of source files have maintainable attributes,
whereas data files do not.  I know of no reason why performance would be any
different between a source file and a data file with the same 3 fields and
record length.  RPG programs certainly don't know the difference between them.

Dave Shaw

-----Original Message-----
From: Bruce Jin [mailto:brucej@mrc-productivity.com]

 I wonder how much difference there is (in terms of performance) when I use
a physical file versus a source physical file. Assume I do OVRDBF, OPEN,
READ, CLOSE in RPG. The record lengths for both PF and SRCPF are the same.
The PF has only 1 or 2 fields in it. Both PF and SRCPF have 500 records.
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