RocksDB 读取路径解析：廉价写入的代价如何由读操作承担

Reading from a key-value store sounds straightforward: provide a key and get a value. However, the previous article in this series explores why this thinking is wrong. LSM trees make the trade-off that writes are cheap because they defer the work of organizing data. Reads have to pay for it. A key’s current value might…