> Could you elaborate on why and when AVGRECLEN allocation is more
efficient?


Barry,

If AVGRLEN=n is not specified, DFSORT will use one-half of the maximum
record length as the average record length. To determine the input file
size for a sort application. DFSORT performs calculations based on the user
supplied record count and other parameters (such as AVGRLEN) to estimate
the total number of bytes to be sorted. This value is important for sort
applications, since it is used for several internal optimizations as well
as for dynamic work data set allocation.

Thanks,
Kolusu
DFSORT Development
IBM Corporation

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