Write-back cache

Tag: write-back

Aliases: write back, writeback

A cache that updates main memory only when a dirty line is evicted, using a dirty bit per line. Lower bandwidth than write-through, more complex coherence.

Lecture references

• L09 · Memory Scheduling — p.15 , p.20 , p.21 , p.35 , p.42 , p.43
• L10 · Branch Prediction — p.8 , p.10
• L12 · Caches — p.20 , p.21 , p.35 , p.36 , p.37 , p.38
• L13 · Advanced Caches — p.9 , p.11
• L16 · Multiprocessors — p.34 , p.38 , p.39 , p.43 , p.47