Joel Wolpert wrote:
We have a file in which BUFNO=250 is specified on the JCL. The LRECL=260
and the BLKSIZE=27820. Is there any disadvantage to such a large BUFNO in
terms of impacting job elapsed time.
I don't know. According to some rules presented lately, it is much too
much (recommendation was AFAIK minimum of 30 buffers and 240kB). The
other paper I read states that default value for PS file is almost optimal.
However another question is "so what ?"
Maybe you overallocated buffers. You wasted some resources. Does make
big pain ? How big ?
--
Radoslaw Skorupka
Lodz, Poland
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