Search sqlserver-dba.com
Follow sqlserver-dba.com
For any SQL Server issue send email to: jack@sqlserver-dba.com
SQLServer-DBA.com Links
Recent Posts
- How to check if Puppet is reboots a windows server with Powershell
- How To Use Transparent Data Encryption To Increase Your Security
- Quick Fix: How to display hours minutes seconds between two dates
- Use Get-ADPrincipalGroupMembership with other Active Directory domains
- On-Demand Instant File Initialization status with sys.dm_server_services
- Error Message:The UPDATE statement conflicted with the REFERENCE constraint
- How to master Mount-Diskimage in Powershell
- Error Message: The RPC server is unavailable during SQL Setup
- How to find list of AD groups of a user from SQL Server
- Error Message : String or binary data would be truncated
07 March,2014 by Jack Vamvas
Question: Is the DIRTY_PAGE_POLL wait type something to worry about? Since I’ve upgraded to SQL Server 2012 , I’ve noticed the DIRTY_PAGE_POLL consistently appearing at the top of the wait types.
Answer: The DIRTY_PAGE_POLL wait type is related to the Indirect Checkpoint feature. One of the Indirect Checkpoint benefits is to reduce IO spiking that is checkpoint-related by writing dirty pages continually to disk in the background.
By default, Indirect Checkpoint is not turned on , and requires an ALTER DATABASE statement to enable.
The interesting aspect of DIRTY_PAGE_POLL wait type , is it still appears as a wait type, even though Indirect Checkpoint is not enabled, as the background thread is waiting to poll for dirty pages.
In reporting the top wait types on a database server, I don’t include DIRTY_PAGE_POLL as it changes the top waits report without giving me a better understanding of SQL Server performance.
Read More
SQL Server Performance Killers
SQL Server Performance ,memory pressure and memory usage
SQL Server – Memory: Pages sec, memory pressure and thrashing
Author: Jack Vamvas (http://www.sqlserver-dba.com)
Share:
Verify your Comment
Previewing your Comment
This is only a preview. Your comment has not yet been posted.
As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.
Having trouble reading this image? View an alternate.
Posted by: |