Kentico 13 Admin really slow

Matthew Butler asked on August 12, 2022 00:08

I've got the admin site and content site on Azure web apps, the content site is very quick, but the admin site is slow, it can take over a minute to load pages, once a section is cached it seems fine, but thats short lived.

The database doesn't appear to exceed 50% load, the resources do peek quite high 80% for the app plan, but not to the extent I'd expect for the time to load.

I've reviewed SQL performance ant there's just 1 query for Search tasks which appears slow.

Any ideas?

kentico 13 admin area

Correct Answer

Eugene Paden answered on September 6, 2022 14:49

S2 is fine for the CD but really just minimum for CMS, you need at least S3.

Kentico Hosting plan parameters:

Minimum: 4 GB memory (RAM), 200 MB database size
Recommended: 8 GB memory, 1 GB database size

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Recent Answers

Brian McKeiver answered on August 15, 2022 23:23

Many things could cause this. If it is in Azure you could try a quick scale up of the Azure SQL Database first to see if performance increases, if not, you could try to scale up the App Service to see if it is a compute issue. Also are we talking Portal or MVC, what version of Kentico, and what deployment mode for the CMSApp project (website vs webapp). Is Kentico SQL Debugging on or off?

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Eugene Paden answered on August 24, 2022 15:25

Most likely memory constraint on your Admin WebApp, you need at least 7GB but 14GB works better.

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Matthew Butler answered on August 30, 2022 09:00

If it was a resource or SQL constraint would I not see some evidence of that in the usage charts? Nothing appears to be peaking

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Eugene Paden answered on August 30, 2022 19:44

Matthew what's the size of your app service plan? How many web apps are in the service plan? Can you share memory usage as well? Check the Memory Percentage on your App Service Plan and the Memory working set of your web app.

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Matthew Butler answered on September 6, 2022 09:56

The plan is an S2 with 3.5Gb of Ram, with the CMS and CD on it, the CD runs really well, but the CD seems very slow generally, the max "Average memory working set" I'm seeing is 700mb, and the memory percentage max at 80% and not seeing any chart really bottleneck.

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