Stephen

Are you DisablingControls on the dataset, even though you
may have no datasources bound it seems to speed things up
(esp if the app is  CPU bound)

N

----- Original Message -----
From: "Stephen Bertram" <[EMAIL PROTECTED]>
To: "Multiple recipients of list delphi" <[EMAIL PROTECTED]>
Sent: Tuesday, November 12, 2002 4:55 PM
Subject: [DUG]: TADOQuery performance


I am struggling with the performance of TADOQuery on one machine.

Running a stored procedure that returns around 10000 rows it takes 10.5
seconds to iterate though the rows:
  while not qry.Eof do
    qry.Next;

On investigation I found that then SQL ran in 0.8 seconds, the first 1000
rows were read in 120 mSec, but each successive 10000 rows took longer to
navigate:
  1 0.120 sec
  2 0.290 sec
  3 0.461 sec
  4 0.681 sec
  5 0.801 sec
  6 0.992 sec
  7 1.081 sec
  8 1.202 sec
  9 1.332 sec
 10 1.522 sec

This result was not affected by any combination of CursorLocation, Cursor
Type or LockType.  This same procedure runs in under a second on other
machines.

Does anyone have any pointers for the environment, settings or anything else
that may help?

TIA

Stephen
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