diff options
| -rw-r--r-- | HOWTO | 6 | ||||
| -rw-r--r-- | fio.1 | 4 |
2 files changed, 8 insertions, 2 deletions
@@ -378,7 +378,11 @@ filesize=int Individual file sizes. May be a range, in which case fio fill_device=bool Sets size to something really large and waits for ENOSPC (no space left on device) as the terminating condition. Only makes sense with sequential write. For a read workload, the mount - point will be filled first then IO started on the result. + point will be filled first then IO started on the result. This + option doesn't make sense if operating on a raw device node, + since the size of that is already known by the file system. + Additionally, writing beyond end-of-device will not return + ENOSPC there. blocksize=int bs=int The block size used for the io units. Defaults to 4k. Values @@ -235,7 +235,9 @@ must be given. Sets size to something really large and waits for ENOSPC (no space left on device) as the terminating condition. Only makes sense with sequential write. For a read workload, the mount point will be filled first then IO started on -the result. +the result. This option doesn't make sense if operating on a raw device node, +since the size of that is already known by the file system. Additionally, +writing beyond end-of-device will not return ENOSPC there. .TP .BI filesize \fR=\fPirange Individual file sizes. May be a range, in which case \fBfio\fR will select sizes |