When a process waits for a block device data request to complete, it incurs I/O wait time, and all idle time becomes wait time.

当一个过程等待一个块设备数据请求完成时，它会增加 I/O 等待时间，而所有空闲都会变成等待时间。

youdao

RDBMS designers concentrated on optimizing I/O and tried to align the data access patterns with the block structure imposed by the drives.

RDBMS 设计者的精力主要集中于优化 I/O 和设法用驱动器的块结构来安排数据访问模式。

youdao

The type blockio sets the disk to direct block I/O mode without page cache.

类型 blockio 把这个磁盘设置为直接块 I/O 模式，没有页面缓存。

youdao

That says it's in here. It's in this tri-block. It raised an exception, but it wasn't and I O error.

这在这里它是一个try程序块,它报出异常，但他不是io错误。

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