Questions tagged [performance]
For questions related to Sitecore application performance, client performance, and other performance-related topics pertaining to Sitecore
51
questions
2
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2
answers
68
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how to automate and implement Rich Text Tile pictures to be loaded as lazy in Sitecore
I am trying to implement and automate Rich Text Tile pictures to be loaded as lazy functionality. Also to mention I am not using SXA.
Is there any way to automate it instead of manually adding ...
0
votes
0
answers
63
views
Identical Queries To Find Data Folder
After an upgrade to 10.3 we started to see identical SQL queries, which put a lot of stress on the SQL server. The query:
exec sp_executesql N' SELECT [ID] FROM [Items] WHERE [ParentID] = @parentId ...
- 335
2
votes
1
answer
156
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How to set the JVM Memory for Solr running on an Azure App Service
If you are following one of these blog posts on setting up Solr in an Azure App Service (instead of an VM) such as: https://www.getfishtank.com/blog/installing-solr-app-service-in-sitecore-azure-paas, ...
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1
vote
1
answer
110
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Is there some way to measure number of items read per item in the Content Editor
I'm wondering if there is any diagnostic tool, or technique which can be used to work out how many items are read from the DB for each item loaded in the content editor. I'm thinking of a Content ...
- 6,130
2
votes
4
answers
498
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Is it possible to preload an image for the hero banner in Sitecore to improve LCP?
We are trying to improve the LCP score of our site and one of the elements we want to optimize is the large image used in the hero banner of each page. Is there a way to set this image to be preloaded?...
- 65
0
votes
0
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266
views
Sitecore 10.1 slow sites after the migration from Sitecore 8.2
We migrated to Sitecore 10.1 from Sitecore 8.2. Every site loading for the first time seems to be pretty slow.
The initial load takes 15 to 30 seconds on average and it's the type document which takes ...
- 513
1
vote
1
answer
414
views
When does prefetch cache filled up completely
I was trying to see how much prefetch cache is being utilized on my CD server. I accessed cache status pages and found out that they are not getting filled after restarting the app (I made config ...
- 235
3
votes
1
answer
155
views
Disabling the Usage button that show associated content used number on the experience editor
We have a shared datasource item that has been used many times on a component across the site.
When click the component on the experience editor, the browser freezes. Is there anyway to disable the &...
- 167
0
votes
1
answer
277
views
HTML rendering cache performance logs
Recently, our Prod environment caused downtime due to some caching issue as reported by the agency that hosts our application. Sitecore support asked us to enable HTML Rendering Cache on select ...
- 69
1
vote
4
answers
911
views
Optimize Homepage Load Speed
Any way I can reduce these numbers? This is the only page that loads incredibly slow compared to others. I enabled Debug in Experience Editor to see this. Sometimes the page loads slow sometimes it ...
- 69
1
vote
0
answers
115
views
Sitecore 9.0.2 and Azure PaaS based live website gives '502' error few times in a day
We have our public website in Sitecore 9.0.2 and it is in Azure PaaS infrastructure, from last few days the website gives '502 following error message' at specific times in a day(8 (am or pm), 9(am or ...
- 31
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66
views
Is there a setting that limits amount of parallel image resizes? When there are multiple images on a page performance is really slow
On Sitecore 8.2 I have a situation where images are taking way longer than expected to get served by Sitecore.
Lets say I have a page with 10 images, all SVGs under 1kb.
3 images take 50ms
3 images ...
- 377
4
votes
3
answers
637
views
Sitecore 10.1 xConnect collection database multi-region scaling read-only performance
I have a multi-region Sitecore deployment with CDs in the US and the UK using Sitecore 8.2 with MongoDb as the xDb, like this:
UK US
CD1 ...
- 125
3
votes
2
answers
401
views
What part of the sitecore PAAS setup is using redis?
We're using Sitecore 9.1 and are having some issues with our session management.
After changing it from Redis to InProc (both session-state and shared session-state), the issues disappeared.
What ...
- 313
1
vote
1
answer
250
views
Sitecore PaaS Web DB spikes
We’ve just migrated from Sitecore 8.2.5 on-prem to 9.3 Azure PaaS. Performance seems ok most of the time, but we’re seeing regular spikes to 100% DTU on the web db.
The db is standard S2 50 DTU and we’...
- 11
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1
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103
views
Get Experience Forms Performance statistics using API
Is there an API to use the form performance? I'm using Sitecore 9.3.
- 349
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1
answer
214
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Sitecore 9.1.1 Database CPU crashing ocassionally - XDB query in suspect
I am having trouble debugging why my CPU utilization occasionally reaches 100%!
The query I see which is taking time is
...
RETURN (
SELECT TOP 1
[xdb_refdata].[DefinitionMonikers]....
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votes
1
answer
651
views
Local instance of Sitecore intermittently hangs indefinitely on initialisation following upgrade to Sitecore 9.1
We are experiencing an intermittent problem which causes the initialisation of a local Sitecore instance to hang indefinitely, and we can't seem to figure out what is causing it. It seems to vary in ...
- 33
1
vote
1
answer
45
views
Is the class PerformanceCounters.DataCount thread safe
Is the Diagnostics class Sitecore.Diagnostics.PerformanceCounters.DataCount thread-safe (or perhaps, I mean accurate in the context of multiple threads).
I noticed that it is used by Sitecore to track ...
- 6,130
2
votes
1
answer
960
views
IndexingStateSwitcher Job Never Ends
We are suddenly experiencing a problem with Sitecore never starting up. It looks like the last meaningful line in the log is that the IndexingStateSwitcher job starts, however, it never ends. In our ...
- 325
1
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0
answers
79
views
Is there a way to load multiple renderings in homepage/dashboard parallel in Sitecore 9.1?
Home page has about 15 renderings with each controller rendering calling different API for analytical data (external systems for graph,charts ,summarized data) hosted on Sitecore 9.1
Average max time ...
- 313
4
votes
1
answer
528
views
DTU shooting up after application start in Azure PAAS Sitecore 9.0.2
We are observing that DTUs are shooting up while the application startsup in Azure PAAS environment, however the frequency is not consistent- sometime we restart the webapp explicitly and sometime it'...
- 324
3
votes
0
answers
664
views
High CPU usage & Lock Contention Rate on Content Delivery servers
We have a performance problem on our site.
Project infrastructure:
2 Azure Regions,
Each region has 3 CD servers,
Each CD server is Intel Xenon 2,40 GHz 16 logical processors, 112 GB of RAM.
We ...
- 209
7
votes
1
answer
1k
views
How do I improve my SXA sites Google PageSpeed Insights Score?
Our client would like us to aim/achieve a particular Google PageSpeed Insights score. In particular, a score equal to or above 80/100 (mobile score) would be ideal.
We are building the site with ...
- 1,079
4
votes
2
answers
510
views
Azure database refdata high intermittent load
We've been running a SC9.1 solution on PAAS for a while now, but have recently noticed intermittent slow response times, both on the CD and the CM.
We've correlated it to high load on the refdata-db:
...
8
votes
2
answers
5k
views
Is there any known performance difference between Item.Axes.GetDescendants() and recursive Item.GetChildren()?
I was wondering if there is any known difference (mostly performance related) between those two methods of retrieving all children of a given Item.
The first one will give me all levels of children in ...
- 2,311
4
votes
1
answer
392
views
Sitecore 9.1 CD servers locking up randomly
I have a long running ticket open with Sitecore, but am just looking for more ideas.
I have two brand new 9.1 CD servers in a Content Delivery role. The site can run fine for weeks. Then sometimes ...
- 13.2k
0
votes
1
answer
111
views
Sublayouts always rendering even when Visible=false, causing performance issues
I have a page template that dynamically renders all the datasource items that are in its Components folder. The way the page works is that there are no components in the placeholder settings on the ...
- 1,364
2
votes
1
answer
913
views
Connection keep-alive not coming in Response Header - Sitecore 9.0.1 -Windows Server 2016 - GTMetrix report
I have enabled allowKeepAlive setting for my application on IIS by set common header (as shown below) but getting connection as close every time in response header.
My application is developed using ...
- 751
17
votes
2
answers
3k
views
Slow cshtml compilation on Azure WebApps
We are having serious issues in the startup (boot) time of our application.
After carefull investigation we have discovered that the most time is consumed by first-time-visit compilation of the ...
- 2,598
3
votes
1
answer
405
views
Sitecore.Pipelines.HttpRequest.EnsureServerUrl Processor very slow
I have a multi-site Sitecore instance (Sitecore 8.2), and one of the sites is very slow to load. I enabled Pipeline profiling, and saw that the httpRequestBegin pipeline is taking a large majority of ...
- 133
5
votes
1
answer
2k
views
SwitchOnRebuild with SolrCloud not working
We are running Sitecore 9.0.0 (Initial Release) on Azure with SolrCloud (6.6.2) and getting close to go-live.
We are using Sitecore's SwitchOnRebuild functionality for indexing so that the indexes ...
- 2,682
6
votes
1
answer
1k
views
How can I improve startup times content management in Azure PaaS?
On our Sitecore 9.0.1 in Azure PaaS, we notice that the first load of pages in the sitecore backend (login, desktop, experience editor, content editor) takes a lot of time. For now we implemented some ...
- 2,598
10
votes
1
answer
2k
views
Sitecore Debug Mode [closed]
What are the differences of code/pipeline execution in Sitecore side, when we run on debug mode compared to normal page request?
Facing a strange issue where normal page request takes long time to ...
- 3,851
3
votes
2
answers
1k
views
Bundling and Minification of Javascript and CSS files
How to perform bundling and minification of Javascript and CSS files kept in sitecore/media library path.
- 527
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vote
1
answer
204
views
Does Federated Authentication improve persistent user performance?
In Sitecore 9, does Federated Authentication improve the performance limitations for persistent users? It appears to wrap around .NET Membership, which is the same as previous versions.
(Credit goes ...
- 6,791
4
votes
3
answers
3k
views
Effective way to resolve the EventQueue, CPU and memory load related issue
I have hundreds of thousands items in Sitecore, sometimes it needs to publish all of them and as the result CPU and memory are overloaded. The reason of the perfomance issue is a huge amount of items ...
6
votes
3
answers
1k
views
DatasourceUsagesCount request slowing down Experience Editor
I am using Sitecore 8.2. The Experience Editor has a feature called as "Usage" which appears in the widget that shows when we select a component/rendering. The purpose of the usage functionality is to ...
- 63
3
votes
1
answer
221
views
ModelBinders vs Sitecore Debug mode
We used ModelBinders.Binders on our project to make resolving of controller action parameters easier and make code more testable.
ModelBinders.Binders[typeof(SomeType)] = new SomeTypeModelBinder();
...
- 3,831
3
votes
2
answers
1k
views
Is there a better way of disabling memory monitor hook
I am working on performance tuning for a Sitecore website. My current task is to disable memory monitor hook. For this, I am referring to Sitecore's tuning guide which can be found here. Now, ...
- 1,054
9
votes
3
answers
1k
views
Sitecore 8.2 memory leak with autofac DI on load test
We implemented the Autofac to work with Sitecore default DI implementation by following the guide below:
https://doc.sitecore.net/sitecore_experience_platform/developing/developing_with_sitecore/...
- 2,313
6
votes
3
answers
2k
views
Best Practice around <applicationInitialization> for Sitecore WebApps
Is there any best practice or recommendation around applicationIntialization?
Should we use this?
What is the best way to warm up or improve start up time of CMS and CD website after swap deployment ...
- 942
4
votes
1
answer
477
views
Caching Experience Editor JS and CSS
As part of the performance improvements I've been working on for Experience Editor in Sitecore 8.1 I wanted to cache the Ribbon files. I followed the guidance here to put them into the browser cache ...
- 9,426
9
votes
2
answers
7k
views
AcquireRequestState causing slow page load times
We're currently doing some performance optomisation of our Sitecore 8.1 Website and one of the slowest operations were seeing in New Relic is AcquireRequestState.
I've read around this quite a bit ...
- 9,426
5
votes
2
answers
490
views
Sitecore infrastructure question
My client needs a site which can sustain load of 3 million views a day.
We asked them if they know, what a spike per second would look like but they do not know the answer to that. They said from 3 ...
- 662
7
votes
1
answer
517
views
Performance Issue With Facets
We are having some performance issue when setting Datasources and Linking items in Sitecore 8.2. The test server just hangs when trying to expand a node in the dialog box. The CPU spikes to 100% and ...
- 71
4
votes
2
answers
510
views
Sitecore Azure Cachingservices Sizing on Prod Based on number of CD servers
Is there any rule of thumb on the number of caching services to have with Content delivery servers. Like 2 Cache services with 1 CD in Azure PAAS.
Asking this question, because one of our clients ...
- 1,655
10
votes
1
answer
214
views
After applying the Q3 2016 Security Update our sites went down
As you all might know Sitecore issued a critical security hotfix, after applying the fix to our client sites, most of them went down for on average 30 minutes before going back up again, and one of ...
- 531
12
votes
2
answers
3k
views
Limiting version numbers/copying old versions to archive for easy access
Sitecore recommends limiting number of items to up to 10 versions per item.
The version manager module can be used to limit the number of item versions.
This can either be run periodically, or when ...
- 1,072
12
votes
3
answers
4k
views
Sitecore Page - First request on every page slow
We have been noticing that the first request to any of the Sitecore pages seems to be loaded slow. Every subsequent request is ok.
Note that we can't use output cache as is a transaction based member ...
- 2,313