plan cache last flush time?

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plan cache last flush time?

John D

Right there with Babe

Points: 787
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October 15, 2010 at 8:01 am

#227970

Is there any way to determine the last time the plan cache was flushed?
Thanks in advance for the help.

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Grant Fritchey SSC Guru Points: 398696 More actions · Answer 1

Except for certain operations the flush the cache, it's pretty much being constantly flushed, depending on the pressure on memory. But, to my knowledge, there's no way to know for sure. One thing you can do though, is run a query against one of the DMOs that uses the cache and look at the creation date for the entry. The oldest one will show you the last time the entire cache was flushed. One example is sys.dm_exec_query_stats.

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Steve Jones - SSC Editor SSC Guru Points: 734489 More actions · Answer 2

Are you looking for a deliberate flush, like a DBCC comment? The default trace might help.

John D Right there with Babe Points: 787 More actions · Answer 3

Yes, I was looking for a diliberate flush with DBCC FREE...CACHE. Sorry I should have been more specific.

Thanks again for the help.

Wildcat SSCarpal Tunnel Points: 4774 More actions · Answer 4

Error log should have an entry for DBCC FREE...CACHE