cacheparametre

Cacheparametre is a term used in computing to describe a configurable parameter that controls the behavior and performance of a cache. Caches store frequently accessed data closer to the processor or user to reduce latency and increase throughput. The cacheparametre can apply to various layers, including CPU caches, web caches, application-level caches, and database caches.

Common cacheparametres include cache size (capacity), which determines how much data can be stored; eviction policy, which selects which items to remove when the cache is full (examples include least recently used, least frequently used, and first-in, first-out); time-to-live or expiration controls how long an item remains valid; refresh or revalidation policies define when data should be updated; prefetching hints adjust proactive loading; write policy governs how writes are propagated to underlying storage; and invalidation strategies determine how cached data is marked stale.

Tuning cacheparametres involves balancing memory usage, data freshness, and latency. Administrators and developers analyze workload patterns, cache hit and miss rates, and memory pressure to guide adjustments. Changes are typically applied gradually and monitored for impact on response times, throughput, and data consistency.

Common challenges include stale data after invalidation, cache stampede when many requests miss simultaneously, and coherence issues in distributed caches. Best practices emphasize benchmarking, incremental changes, clear ownership of cache rules, and monitoring of key metrics such as hit rate, latency, and memory utilization.

See also: cache, caching strategies, eviction policies, TTL, cache coherence.