With 12c Oracle provides a couple of new views that report IOs that take over 500ms. That 500ms threshold is modifiable via the hidden parameter _IO_OUTLIER_THRESHOLD.
V$IO_OUTLIER
V$LGWRIO_OUTLIER
With 12c Oracle provides a couple of new views that report IOs that take over 500ms. That 500ms threshold is modifiable via the hidden parameter _IO_OUTLIER_THRESHOLD.
V$IO_OUTLIER
V$LGWRIO_OUTLIER