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Buffer Pool Asynchronous Read Requests


Snapshot Information Level
Database
Table Space

API Structure(s)
sqlm_dbase
sqlm_tablespace
sqlm_bp_info

Monitor Group
Buffer Pool
Buffer Pool
Buffer Pool

Resettable

Yes

 

Event Information Level
Database
Table Space

API Structure(s)
sqlm_db_event
sqlm_tablespace_event

 

API Element Name
Element Type

pool_async_data_read_reqs
counter

 

Description:  The number of asynchronous read requests.

Usage:  To calculate the average number of data pages read per asynchronous request, use the following formula:

 buffer pool asynchronous data reads / buffer pool asynchronous read requests

This average can help you determine the amount of asynchronous I/O done in each interaction with the prefetcher.

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