xref: /linux/Documentation/ABI/testing/procfs-diskstats (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1What:		/proc/diskstats
2Date:		February 2008
3Contact:	Jerome Marchand <jmarchan@redhat.com>
4Description:
5		The /proc/diskstats file displays the I/O statistics
6		of block devices. Each line contains the following 14
7		fields:
8		 1 - major number
9		 2 - minor mumber
10		 3 - device name
11		 4 - reads completed successfully
12		 5 - reads merged
13		 6 - sectors read
14		 7 - time spent reading (ms)
15		 8 - writes completed
16		 9 - writes merged
17		10 - sectors written
18		11 - time spent writing (ms)
19		12 - I/Os currently in progress
20		13 - time spent doing I/Os (ms)
21		14 - weighted time spent doing I/Os (ms)
22		For more details refer to Documentation/iostats.txt
23