sql server 2012 MEMORYCLERK_SQLCLR takes most memory

we have a sql 2012 server, and recently we experience periodically page life downgrades to 0 problem. The frequency is every a few hours.
When I checked memory usage, MEMORYCLERK_SQLCLR takes most of the memory, more than MEMORYCLERK_SQLBUFFERPOOL, the details is in attached picture.

And I used profiler to check what is running in SQL Server while page life suddenly downgrades to 0, and I found only log shipping backup processes are running at the time.. Is it log shipping caused problem? Though the log backup running at the time is for very small database (under 200MB)... The proflier and performance data screenshot is also attached.

Appreciate for your kindly help, any idea is appreciated a lot!
memory-usage.jpg
Profiler-perf.jpg
xuewei shiDBAAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Vitor MontalvãoMSSQL Senior EngineerCommented:
Hi xuewei,

This is todays result?
For now it's only having the highest amount of memory reserved, not used.
Do you remember that long running SP that you showed me in another question? I think it might uses CLR as I can't figure any other option here. Unfortunaly the only way to clean MEMORYCLERK_SQLCLR  is restarting the service.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
xuewei shiDBAAuthor Commented:
Good day Vitor! Yes this is today's result. Now still about 12GB is reserved for CLR, so does it mean this 12GB memory cannot be used by SQL buffer pool, is my understanding right? Thank you!
0
Vitor MontalvãoMSSQL Senior EngineerCommented:
I'm afraid that's correct.
For now are you having performance issues? If not, wait for the next reboot and check again the memoryclerk.
0
xuewei shiDBAAuthor Commented:
Thank you so much Vitor for your help!!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.