Tag Archives: Performance

Sitecore high CPU usage – is the SQL Session State Provider the villain?

My massive Sitecore 9.1 installation started having CPU spikes, even when the servers did not seem to receive more requests. When CPU spiked, I could see that the requests queue would build up, until it crashed with the following error: … Continue reading

Posted in Sitecore 7, Sitecore 8, Sitecore 9 | Tagged , , , | Leave a comment

Sitecore AccessResultCache cache is cleared by Sitecore.Caching.Generics.Cache`1+DefaultScavengeStrategy[[Sitecore.Caching.AccessResultCacheKey

Are you getting a lot of these messages in your Sitecore log: 6052 2021:03:25 05:23:12 WARN AccessResultCache cache is cleared by Sitecore.Caching.Generics.Cache`1+DefaultScavengeStrategy[[Sitecore.Caching.AccessResultCacheKey, Sitecore.Kernel, Version=, Culture=neutral, PublicKeyToken=null]] strategy. Cache running size was xxx MB. This message can easily appear once every … Continue reading


Posted in Sitecore 6, Sitecore 7, Sitecore 8, Sitecore 9 | Tagged , , | 1 Comment

Sitecore Measure Pipeline performance and profile processors

In Sitecore, Pipelines are by far my favorite dependency injection pattern, and I have used them since Sitecore 5. One of the secret features of pipelines are the built in profiling. Oh, yes, by flipping 2 switches you can measure the … Continue reading

Posted in Sitecore 7, Sitecore 8 | Tagged , , , | 2 Comments

Measuring Sitecore performance with HighResTimer

The HighResTimer is a Sitecore feature that has been around since Sitecore 4. It’s a simple timer that allows you to very precisely measure time in microseconds by using the underlying OS timers. It is very easy to use: The … Continue reading

Posted in General .NET, Sitecore 4, Sitecore 5, Sitecore 6, Sitecore 7, Sitecore 8 | Tagged , , | 2 Comments

Improve Sitecore Membership provider performance 2-20 times

Sitecore Membership performance can be increased dramatically by changing stored procedures and create new indexes. Try this before you write your own membership provider. Continue reading

Posted in Sitecore, Sitecore 6, Sitecore 7 | Tagged , , , | 8 Comments

Sitecore poor database performance

If you experience decreasing performance in your Sitecore solution, it’s not always your fault. And it’s not always Sitecore’s fault either. The database is usually the last place I would look for performance issues. Most performance issues comes from poor XSLT … Continue reading

Posted in Sitecore 6 | Tagged , , , , | 1 Comment

Is Sitecore security slowing you down?

Recently, several blogs have posted about hidden settings that allows you to disable certain security related features in Sitecore. Sitecore can contain many users or many groups. This will sometimes lead to slow performance in the Sitecore shell or in the Sitecore … Continue reading

Posted in Sitecore 6 | Tagged , , , , , , , , | 3 Comments