| 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 |
| == =================================== |
| Kernel 5.5+ appends two more fields for flush requests: |
| == ===================================== |
| 19 flush requests completed successfully |
| == ===================================== |
| For more details refer to Documentation/admin-guide/iostats.rst |