Write Strategy
reduce miss penalty
Cache hit
write through Cachewrite back CacheLook aside CacheLook Through CacheCache miss
- write allocate(fetch on write)
fetch into cache
makes performance better(by increasing temporal locality)
- write around (no write allocate)
only write in memory
combination: cache hit 1 + cache miss 2 or cache hit 2 + cache miss 1
Since relation between two is like tradeoff