[[how-to]] = Optimizations Elasticsearch's default settings provide a good out-of-box experience for basic operations like full text search, highlighting, aggregations, and indexing. However, there are a number of optimizations you can make to improve performance for your use case. This section provides recommendations for various use cases. * <> * <> * <> * <> * <> * <> * <> include::how-to/general.asciidoc[] include::how-to/indexing-speed.asciidoc[] include::how-to/search-speed.asciidoc[] include::how-to/knn-search.asciidoc[] include::how-to/disk-usage.asciidoc[] include::how-to/size-your-shards.asciidoc[] include::how-to/use-elasticsearch-for-time-series-data.asciidoc[]