Identifying Pageiolatchsh

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- In all cases, you could look at what query plan is causing the PAGEIOLATCH_SH waits using the sys.dm_os_waiting_tasks and other DMVs, and you can get code to do that in my blog post here. If you have a third-party monitoring tool available, it may be able to help you identify the culprit without getting . - To understand this better, let 's dive deeper into the causes of high PAGEIOLATCH_SH which will allow better understanding of this wait type, but will also When SQL Server compares these T-SQL statements it will identify them as different, as they actually are, so every time we use the new value for .I wrote a long article on troubleshooting PAGEIOLATCH_XX waits on sqlperformance.com - basi.y identifying the query that 's doing the reads and then figuring out which table is being read from and why that data isn 't already in memory. You can get the workflow for identifying a table from a page resource from . - Long waits may indicate problems with the disk subsystem. PAGEIOLATCH_NL, Identified for informational purposes only. Not supported. Future compatibility is not guaranteed. PAGEIOLATCH_SH, Occurs when a task is waiting on a latch for a buffer that is in an I/O request. The latch request is in Shared .

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