Progress
Version 9
Product Update Bulletin
Self-tuning -pwqdelay Parameter
In Version 9.1D,
-pwqdelay
is self-tuning:
- Old Behavior — The user adjusted
-pwqdelay
to determine how many milliseconds elapsed before the Asynchronous Page Writer (APW) checked the APW queue.- New Behavior — The user can still set the value of
-pwqdelay
, but it is a self-tuning parameter. When the database encounters heavy loads,-pwqdelay
decreases its value so that the APW writes more often. When the demand on the database lessens,-pwqdelay
increases its value so that the APW writes less often.
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