Use Nap Time (-nap) to specify the initial length of time to nap in milliseconds. A nap occurs at the first -spin exhaustion when trying to acquire a latch.

For Enterprise database licenses only.

Operating system and syntax UNIX / Windows -nap n
Use with Maximum value Minimum value Single-user default Multi-user default
Database Server 500 1 — 10
CAUTION: Do not change the value of this parameter unless directed to do so by Progress Software Technical Support.

After trying to acquire a latch the number of times specified by -spin, the process first sleeps the amount of time specified by -nap. Upon waking, the length of the nap is doubled, and the process tries to acquire the latch again -spin times. If still unsuccessful, the cycle repeats: nap, increase time, spin, until the latch is acquired. The length of the nap increases until the value specified by -napmax is reached.

If the initial value of -nap is greater than -napmax, the -napmax value is used as the initial nap time.

To change this parameter while the database is running, use PROMON or the _DbParams VST.

For more information see: