👉 Buffer I/O (BIO) is a technique used to manage data transfer between devices and memory by temporarily storing incoming or outgoing data in a buffer before it is processed. This helps smooth out the flow of data, reducing the impact of variable transfer rates and improving overall system performance. By accumulating data in a buffer, BIO allows for more efficient use of CPU resources, as it can process data in larger chunks rather than handling small, frequent transfers. This is particularly useful in scenarios with fluctuating data rates, such as network communications or disk I/O, where sudden bursts of activity can overwhelm the system if not managed properly.
