These views summarize global I/O consumers to display time waiting for I/O, grouped by file. By default, rows are sorted by descending total latency.
          The io_global_by_file_by_latency
          and
          x$io_global_by_file_by_latency
          views have these columns:
- file- The file path name. 
- total- The total number of I/O events for the file. 
- total_latency- The total wait time of timed I/O events for the file. 
- count_read- The total number of read I/O events for the file. 
- read_latency- The total wait time of timed read I/O events for the file. 
- count_write- The total number of write I/O events for the file. 
- write_latency- The total wait time of timed write I/O events for the file. 
- count_misc- The total number of other I/O events for the file. 
- misc_latency- The total wait time of timed other I/O events for the file.