写入文件时,memory map 中的所有页面是否都写入磁盘中的连续磁盘块? [英]When writing to a file, does all the pages in memory map to contiguous disk blocks in the Disk?
MySQL(5.6)是否总是将整个查询结果集缓存在内存/磁盘上? [英]Does MySQL (5.6) always cache the entire result set for a query in memory/on disk?