Buffer Write: Number of pages modified and sent back to the buffer pool.
Buffer Write:修改并发送回缓冲区池的页面数量。
The intermediate buffer on the write side allows the write to complete asynchronously.
在写入方面的中间缓冲区则可以让写入过程异步完成。
Linux, under normal circumstances, USES a system file cache to buffer, read, and write requests from disk.
在一般情况下,Linux使用一个文件系统缓存为磁盘请求进行缓冲和读写。
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