| Contact: Jerome Marchand <jmarchan@redhat.com> |
| The /proc/diskstats file displays the I/O statistics |
| of block devices. Each line contains the following 14 |
| 4 - reads completed successfully |
| 7 - time spent reading (ms) |
| 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) |
| Kernel 4.18+ appends four more fields for discard |
| tracking putting the total at 18: |
| 15 - discards completed successfully |
| 18 - time spent discarding |
| For more details refer to Documentation/iostats.txt |