Lazy write

Updated: 04/26/2017 by Computer Hope

Lazy write is an effect caused by the use of a write-back cache. In a write-back cache, data is first written to the cache and then is later (during a particular time such as an idle machine cycle) is written to the disk or to memory.

This type of cache is more complex to implement, due to the need to track each locations that have been written over and what needs to be marked as dirty to fix later.

Cache, Hardware terms, Write-back cache