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Use the following parameters to control the shared-memory
buffer pool.
- Configuration
Parameter
- Description
- LRUS,
LRU_MAX_DIRTY,
LRU_MIN_DIRTY
- Describe the shared-memory pool of pages (memory spaces) that
the database server uses. These parameters relate to LRU (least
recently used) queues. See LRU
Queues.
- CLEANERS
- Controls the number of threads used to flush pages to disk
and return the pages to the shared-memory pool. See Flushing
Data to Disk.
- RA_PAGES and RA_THRESHOLD
- Control the number of disk pages that the database server
reads ahead during sequential scans. See Configuring the Database Server to Read Ahead.
- IDX_RA_PAGES and IDX_RA_THRESHOLD
- Control the number of index pages that the database server
reads ahead during index scans. See Configuring the Database Server to Read Ahead.
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