What processes are triggered when the cache reaches its size limit?

When the cache reaches its size limit, processes for clearing or evicting old or least-used data are usually triggered to free up space for new data. Depending on the implementation, the following actions may occur:

• Applying an eviction policy (e.g., LRU — Least Recently Used), where the oldest or least frequently used items are removed.
• Compressing or aggregating data within the cache.
• Triggering a write-back, where data is written from the cache to a slower permanent storage.

Thus, the system maintains a balance between access efficiency and memory constraints.