Occurs when a task is waiting on a latch for a buffer that is not in an I/O request. The latch request is in Exclusive mode. Information from Microsoft®
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.
PAGELATCH_EX
Category: IO
SQL Server versions: 2000, 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017
What is PAGELATCH_EX?
1 Answer
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answered 3318 days ago
Spotlight Essentials
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This wait is very common for most instances
For each of 4207 instances, we ranked PAGELATCH_EX on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.
Prevalence of PAGELATCH_EX across the Spotlight Population
For 62 % of hours with this wait, average wait time is less than 0.013 ms
For each instance, we found all the recent hours when it had a PAGELATCH_EX wait. We found the average latency for each of those hours.
4207 instances contributed data to this chart