Sitefinity CMS has three built-in search services: Lucene, Azure Search service, and Elasticsearch service. By default, Sitefinity CMS uses Lucene, but you can switch between search services or tune their settings. To help you choose which search service suits your needs best, examine the following table, summarizing each service's advantages and disadvantages.
The following load test compares the performance of the three search services. The test does not account for machine parameters but highlights the importance of where the server is located. The test includes the search for different news items and is run:
Following are the load test results:
The results show Elasticsearch is the fastest search service because it uses the latest Lucene version. The Azure service is the slowest one but if you deploy Sitefinity CMS on Azure and use Azure Search on a closer location, the search service will also be faster.
In general, all search services have good performance and they return results for less than a half second even on a high load.
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