prefetch-wastage · research · also wasted prefetch

Prefetch wastage

Prefetch wastage is the eviction of prefetched data before its first demand access.

The predicted access can still be correct but occur after eviction. [1]

For an observation-window count, separate evicted-unused data from data still resident at the cutoff; the latter has an unresolved outcome. [2]

Relations

related

prefetch-trigger-distance, cache-pollution, readahead, posix-fadv-willneed, page-cache

Citations

1. Binny S. Gill and Luis Angel D. Bathen. AMP: Adaptive Multi-stream Prefetching in a Shared Cache. FAST 2007, pp. 185-198; sections II-VI. (accessed 2026-10-18)
2. Hesela: fetch size, trigger timing and prefetch diagnostic evidence (accessed 2026-10-18)

JSON: /data/terms/prefetch-wastage.json