| Jerome Marchand | 0e53c2b | 2008-02-08 11:10:56 +0100 | [diff] [blame] | 1 | What: /sys/block/<disk>/stat |
| 2 | Date: February 2008 |
| 3 | Contact: Jerome Marchand <jmarchan@redhat.com> |
| 4 | Description: |
| 5 | The /sys/block/<disk>/stat files displays the I/O |
| 6 | statistics of disk <disk>. They contain 11 fields: |
| 7 | 1 - reads completed succesfully |
| 8 | 2 - reads merged |
| 9 | 3 - sectors read |
| 10 | 4 - time spent reading (ms) |
| 11 | 5 - writes completed |
| 12 | 6 - writes merged |
| 13 | 7 - sectors written |
| 14 | 8 - time spent writing (ms) |
| 15 | 9 - I/Os currently in progress |
| 16 | 10 - time spent doing I/Os (ms) |
| 17 | 11 - weighted time spent doing I/Os (ms) |
| 18 | For more details refer Documentation/iostats.txt |
| 19 | |
| 20 | |
| 21 | What: /sys/block/<disk>/<part>/stat |
| 22 | Date: February 2008 |
| 23 | Contact: Jerome Marchand <jmarchan@redhat.com> |
| 24 | Description: |
| 25 | The /sys/block/<disk>/<part>/stat files display the |
| 26 | I/O statistics of partition <part>. The format is the |
| 27 | same as the above-written /sys/block/<disk>/stat |
| 28 | format. |