Precalculation computes an expensive result before a latency-sensitive operation needs it, stores the result, and replaces repeated computation with a fast lookup. section 7.6
Choose when and how to calculate the result:
- Calculate values at build time when the inputs and function permit it. section 7.6
- Calculate values during application startup or at another convenient runtime point before users need them. section 7.6
- Store results in a lookup table or materialized view so the latency-sensitive path retrieves rather than recomputes them. section 7.1 section 7.6
- Accept possible staleness, refresh at suitable intervals, or incrementally update stored values as the underlying data changes. section 7.6
Usage statistics
A storage dashboard may need filesystem or database queries, subscription-based quota calculations, and usage forecasting. Computing these values at regular intervals lets the interface display stored results immediately while tolerating a bounded update delay. section 7.6
