disk thrashing

基本解釋

It spent most of its time waiting for the swap disk, thrashing like Emacs on a VAX.
大多數(shù)時(shí)間都花在等待交換磁盤上，就像 VAX 上的 Emacs 一樣。
Increase automatic cache size when cache thrashing increases the disk cache size when reading from disk increases (most often due to increased upload speeds).
當(dāng)磁盤讀取頻率增加時(shí)（通常是由于增加了上傳速度），增加緩存大小。
x105173661.blog.163.com
In contrast, when ext3 (in "data=ordered" mode, the default) flushes data to the drive, it can result in a lot of additional seeks and, depending on the IO load, even some unnecessary disk thrashing.
相反，在 ext3（“data=ordered”缺省方式）下，將數(shù)據(jù)清倉到磁盤時(shí)，將導(dǎo)致許多額外尋道，甚至還會(huì)引起某種不必要的磁盤抖動(dòng)（thrashing）（取決于 IO 負(fù)載）。