Waitopedia is a comprehensive resource of information about SQL Server waits.
The description shown below is the top answer as voted by the Spotlight community.
The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.
DIRTY_PAGE_POLL
This is an idle wait and so it can be safely ignored.
What is DIRTY_PAGE_POLL?
This wait never occurs for most instances
For each of 4207 instances, we ranked DIRTY_PAGE_POLL on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.
Prevalence of DIRTY_PAGE_POLL across the Spotlight Population
For 58 % of hours with this wait, average wait time is around 110 ms
For each instance, we found all the recent hours when it had a DIRTY_PAGE_POLL wait. We found the average latency for each of those hours.
900 instances contributed data to this chart