Change the document about iowait
authorChao Fan <fanc.fnst@cn.fujitsu.com>
Wed, 26 Oct 2016 02:41:28 +0000 (10:41 +0800)
committerJonathan Corbet <corbet@lwn.net>
Sat, 19 Nov 2016 17:38:58 +0000 (10:38 -0700)
commit9c240d757658a3ae9968dd309e674c61f07c7f48
treea50facdb5fabc9864528e103eb41bb76b05e38e2
parentca9667fcc855676aa5c35978f201034d38790829
Change the document about iowait

The iowait is not reliable by reading from /proc/stat, so this
method to get iowait is not suggested. And we mark it in the
document.

Signed-off-by: Cao Jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Chao Fan <fanc.fnst@cn.fujitsu.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/filesystems/proc.txt