Performance

Here are some top-level performance metrics for Khoj. These are rough estimates and will vary based on your hardware and data.

info

These performance metrics were last evaluated in 2022.

Search performance

• Semantic search using the default embeddings model is fairly fast at <100 ms across all content types
• Reranking using the cross-encoder model is slower at <2s on 15 results. Tweak top_k to tradeoff speed for accuracy of results
• Filters in query (e.g. by file, word or date) usually add <20ms to query latency

Indexing performance

• Indexing is more strongly impacted by the size of the source data
• Indexing 100K+ line corpus of notes takes about 10 minutes
• Note: It should only take this long on the first run as the index is incrementally updated

Miscellaneous

• Testing done on a Mac M1 and a >100K line corpus of notes