disk read data的意思|示意

Like the previous optimizations, this optimization collects related data on the disk to optimize for sequential Read optimization.

与前面其他优化一样，这个优化在磁盘上收集相关的数据，以实现相邻读优化。

As a result, data is continually written and read from disk rather than from main memory, which is very detrimental to performance.

导致的结果是不断地从磁盘而非主内存读写数据，这是影响性能的重要限制因素。

To ensure the durability of events and actions, Business events can persist or read data from disk at several points during event processing.

为了确保事件和动作的持续性，Business Events可以执行持久化操作或在事件处理过程中的几个不同时间点从磁盘读取数据。

In other words, it may be removed from the buffer and written back to the disk before subsequent data pages can be read into the memory and processed.

换言之，在后续数据页被读入内存并被处理之前，它们可能已经从缓冲区中删除，并写回磁盘。

If all the data fits in the cache, then the data is read from disk only once; after that, all requests are satisfied from the cache at memory speed.

如果所有数据都在缓存中，那么只需从磁盘读取一次数据；毕竟，所有的请求都可以用内存速度从缓存中得到满足。

Consider what happens when Linux wants to read or write one of these data structures on a new disk with 4096-byte sectors.

想一下，当Linux想在一个带4096字节扇区的新磁盘上读写这些数据结构时，会发生什么事情。