# Overview A write-through cache is when... #flashcard the data is written to the cache and database simultaneously: 1. Application writes to cache 2. Cache writes to DB <!--ID: 1751507776564--> ## Diagram ![[Write-through Cache 2024-12-19 09.08.25.excalidraw.svg]] %%[[Write-through Cache 2024-12-19 09.08.25.excalidraw|🖋 Edit in Excalidraw]]%% # Key Considerations # Pros - [[Consistency]] # Cons The cons of the write-through cache are... #flashcard - More expensive due to all data being stored in the cache at some point - Slower performance for write operations <!--ID: 1751507776567--> # Use Cases - When data consistency is important # Related Topics