問題描述
任何人都可以詳細說明 - 系統內存中的緩沖區和緩存有什么區別?
Can anybody detail - What is the difference between Buffer and Cache in system memory?
推薦答案
buffer 只是一個容器，用于在任何給定時間比消費者更多的數據進入時在短時間內保存數據可以使用/處理.這是一種先進先出的情況 - 數據進來，可能會被緩沖，然后在一段時間后按照進來的順序出去.
A buffer is just a container to hold data for a short period of time when more comes in at any given time than a consumer can use / process. It's a first-in, first-out situation - the data comes in, might be buffered, and goes out in the same order it came in, after a while.
緩存是用于加速某些操作的存儲.事物被放入緩存中，并且應該從其中多次、一遍又一遍地檢索.沒有流經緩存"的機制——數據不會以相同的順序進出——但它只是一個保存容器.訂單可能是任何東西，真的 - 項目是通過一個鍵來尋址的，它們不會流過"但它們被放入"并留在那里(直到它們因為不被使用而被丟棄，或者因為系統下降).
A cache is a storage for speeding up certain operations. Things get put in a cache, and should be retrieved from it multiple times, over and over again. There's no "flowing through the cache" kind of mechanism - data doesn't come in and go out in the same order - but it's just a holding container. The order might be anything, really - items are addressed via a key, they don't "flow through" but they are "put in" and stay there (until they're thrown out because of not being used, or because the system goes down).
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