v1.14: Experimental feature: Cache search query embeddings

[guimachiavelli]

v1.14 introduces a new experimental feature to allow users to cache search query embeddings. This may improve performance in contexts where the same query term is repeated in multiple requests, such as sharded environments.

--experimental-embedding-cache-entries must be declared on instance launch in the user's preferred format (config file, CLI flag, env var) and specify an integer:

--experimental-embedding-cache-entries=150

Tasks

• Update learn/resources/experimental_features_overview
• Update learn/self_hosted/configure_meilisearch_at_launch

References

• SME: @dureuill
• GH discussion: https://github.com/orgs/meilisearch/discussions/818
• engine issue: Improve performance when embedding search queries meilisearch#5430