At 08:56 -0600 on 10/03/2006, Paul Gilmartin wrote about Re: Default
System BLKSIZE for PDSE:
Is there any value in specifying a value other than BUFNO=1 for
a PDSE? Why?
I'd say YES. You want a minimum of BUFNO=2 so that as you read from
one buffer, another is being primed with data. The same applies to
writing in that there was be a buffer for you to write to as the
other is being flushed to DASD. Note that the number of buffers you
actually want is based on your processing rate. IOW: You want enough
buffers so that will always be one available while the others are
being primed/flushed. With only BUFNO=1, you will always have a delay
when you try to process past the end of the buffer.
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
