1. Waitopedia
  2. EE_PMOLOCK

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.

EE_PMOLOCK

Category: Memory
SQL Server versions: 2005, 2008, 2008 R2, 2012, 2014, 2016, 2017

What is EE_PMOLOCK?

1 Answer

 

Occurs during synchronization of certain types of memory allocations during statement execution. Information from Microsoft®
Very rare

This wait never occurs for most instances

For each of 4207 instances, we ranked EE_PMOLOCK on how frequent it is compared to all other recent waits. The chart shows the total of all rankings.

Prevalence of EE_PMOLOCK across the Spotlight Population

For 78 % of hours with this wait, average wait time is less than 0.053 ms

For each instance, we found all the recent hours when it had a EE_PMOLOCK wait. We found the average latency for each of those hours.

719 instances contributed data to this chart

Latency Distribution of EE_PMOLOCK across the Spotlight Population