[deliverable/linux.git] / Documentation / ABI / testing / procfs-diskstats

What:		/proc/diskstats
Date:		February 2008
Contact:	Jerome Marchand <jmarchan@redhat.com>
Description:
		The /proc/diskstats file displays the I/O statistics
		of block devices. Each line contains the following 14
		fields:
		 1 - major number
		 2 - minor mumber
		 3 - device name
		 4 - reads completed successfully
		 5 - reads merged
		 6 - sectors read
		 7 - time spent reading (ms)
		 8 - writes completed
		 9 - writes merged
		10 - sectors written
		11 - time spent writing (ms)
		12 - I/Os currently in progress
		13 - time spent doing I/Os (ms)
		14 - weighted time spent doing I/Os (ms)
		For more details refer to Documentation/iostats.txt
Commit	Line	Data
0e53c2be JM	1	What: /proc/diskstats
	2	Date: February 2008
	3	Contact: Jerome Marchand <jmarchan@redhat.com>
	4	Description:
	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
af901ca1	11	4 - reads completed successfully
0e53c2be JM	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