Re: Question on how the AS/400 handles "spooling"

At 08:16 PM 1/14/99 -0500, you wrote:
>Hi Al,
>
>Why would that be such a knock on the other writers (and we don't have a
TON of
>writers; less than 20...)
>
Not enough info to be sure.  Possibly QPFRADJ was not set to two or three.
Possibly the spooling pool was very small, and the performance adjustment
could not catch up fast enough.

>Also you say "front to back" - not sure I follow you... Sorry

It reads the entire spooled file until it gets to the "starting page".  It
starts on page 1, them page 2...

The spooling process is designed to read/write, read/write.  Reads are
fairly cheap, write are more costly.  Never the less, when bypassing pages,
it's not really working like the original design.  So it uses lots of CPU
cycles doing read, compare page #, read, compare page #...

When it catches up, then everything goes back to normal.

The first note did not provide enough detail.  This could have been a 4MB
model B10.

Al





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Al Barsa, Jr. - Account for Midrange-L
Barsa Consulting, LLC.  
400 > 390

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