HP3000-L Archives

March 1998, Week 1

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Jerry Fochtman <[log in to unmask]>
Reply To:
Jerry Fochtman <[log in to unmask]>
Date:
Tue, 3 Mar 1998 07:15:41 -0600
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At 01:40 PM 3/2/98 +0000, Paul H. Christidis wrote:
/snip
>While the process goes through a million plus entries I just feel that
>20+ hours is just too much.  Can anyone hazard a guess?

Paul,

By chance is the process doing DBPUTs (detail or master) whereby a
master (related or the target set) has either a tight capacity and/or
perhaps has a binary-type key (I, J, etc.)?  Seems from the stack
markers that the process appears to be searching a lot of file
pages, so perhaps you have a clustering problem in the master and
a lot of synonym chains to walk for each put.  When it completes
traversing the synonym chain and determines the entry does not
exist, perhaps it then has a large forward serial search to perform
to find an open entry in the master to add the new entry and link it
to the synonym chain.

Just a thought.... not really enough data on the specifics of
the operation and base to know if this is a possibility or not...



/jf
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