Summary information |
|
|---|---|
Default value |
100 |
Range of values |
1–2147483647 |
Status |
Static |
Display level |
Comprehensive |
Required role |
System Administrator |
For Adaptive Servers running with multiple engines, the address lock spinlock ratio sets the number of rows in the internal address locks hash table that are protected by one spinlock.
Adaptive Server manages the acquiring and releasing of address locks using an internal hash table with 1031 rows (known as hash buckets). This table can use one or more spinlocks to serialize access between processes running on different engines.
Adaptive Server’s default value for address lock spinlock ratio is 100, which defines 11 spinlocks for the address locks hash table. The first 10 spinlocks protect 100 rows each, and the eleventh spinlock protects the remaining 31 rows. If you specify a value of 1031 or greater for address lock spinlock ratio, Adaptive Server uses only 1 spinlock for the entire table.
