# Performance and Scalability Salesforce is a multi-tenant platform — you fight for resources. Performance means staying under limits while delivering fast, scalable, predictable behavior. ## Good general rules * Always bulkify * Minimize database trips via Selectors + UoW * Push heavy and retry-prone workloads async * Cache when the risk of stale data < cost of re-querying * Preserve transaction independence — avoid cascading failure chains --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.goharrier.com/technical/performance-and-scalability.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.