db file parallel read

成都创新互联公司是一家专注于网站建设、成都网站设计与策划设计,聂荣网站建设哪家好?成都创新互联公司做网站,专注于网站建设10余年,网设计领域的专业建站公司;建站业务涵盖:聂荣等地区。聂荣做网站价格咨询:18980820575

官网解释：

    This happens during recovery. It can also happen during buffer prefetching, as an optimization (rather than performing multiple single-block reads). Database blocks that need to be changed as part of recovery are read in parallel from the database.

Wait Time: Wait until all of the I/Os are completed

解释：

    db file parallel read 这在恢复期间发生。 它也可能在缓冲区预取期间发生，作为优化（而不是执行多个单块读取）。 从数据库并行读取需要作为恢复一部分进行更改的数据库块。

标题名称：Oracle等待事件之dbfileparallelread
文章地址：http://hbruida.cn/article/gooeeo.html