• 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. 

## 28.4.3.13 The io_global_by_wait_by_bytes and x$io_global_by_wait_by_bytes Views 

These views summarize global I/O consumers to display amount of I/O and time waiting for I/O, grouped by event. By default, rows are sorted by descending total I/O (bytes read and written). 

The io_global_by_wait_by_bytes  and x$io_global_by_wait_by_bytes  views have these columns: 

• event_name 

The I/O event name, with the wait/io/file/  prefix stripped. 

• total 

The total number of occurrences of the I/O event. 

• total_latency 

The total wait time of timed occurrences of the I/O event. 

• min_latency 

The minimum single wait time of timed occurrences of the I/O event. 

• avg_latency 

The average wait time per timed occurrence of the I/O event. 

• max_latency 

The maximum single wait time of timed occurrences of the I/O event. 

• count_read 

The number of read requests for the I/O event. 

• total_read 

The number of bytes read for the I/O event. 

• avg_read 

The average number of bytes per read for the I/O event. 

